{"id":714,"date":"2025-05-18T18:49:42","date_gmt":"2025-05-18T18:49:42","guid":{"rendered":"https:\/\/science.gsfc.nasa.gov\/stella\/?page_id=714"},"modified":"2026-03-04T16:08:15","modified_gmt":"2026-03-04T16:08:15","slug":"stella-q2","status":"publish","type":"page","link":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/","title":{"rendered":"STELLA-Q2"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"714\" class=\"elementor elementor-714\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dcd9256 e-flex e-con-boxed e-con e-parent\" data-id=\"dcd9256\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a213aae elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"a213aae\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">STELLA-Q2<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c392c7b elementor-align-left elementor-widget elementor-widget-button\" data-id=\"c392c7b\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#build\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-wrench\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M507.73 109.1c-2.24-9.03-13.54-12.09-20.12-5.51l-74.36 74.36-67.88-11.31-11.31-67.88 74.36-74.36c6.62-6.62 3.43-17.9-5.66-20.16-47.38-11.74-99.55.91-136.58 37.93-39.64 39.64-50.55 97.1-34.05 147.2L18.74 402.76c-24.99 24.99-24.99 65.51 0 90.5 24.99 24.99 65.51 24.99 90.5 0l213.21-213.21c50.12 16.71 107.47 5.68 147.37-34.22 37.07-37.07 49.7-89.32 37.91-136.73zM64 472c-13.25 0-24-10.75-24-24 0-13.26 10.75-24 24-24s24 10.74 24 24c0 13.25-10.75 24-24 24z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Start Building <\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1cf5fd2 e-flex e-con-boxed e-con e-parent\" data-id=\"1cf5fd2\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-e551ad1 e-con-full e-flex e-con e-child\" data-id=\"e551ad1\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ab9ad82 elementor-widget elementor-widget-button\" data-id=\"ab9ad82\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#build\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Build<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4487177 e-con-full e-flex e-con e-child\" data-id=\"4487177\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-37acc84 elementor-widget elementor-widget-button\" data-id=\"37acc84\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#operation\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Operation<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8742064 e-con-full e-flex e-con e-child\" data-id=\"8742064\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bb29851 elementor-widget elementor-widget-button\" data-id=\"bb29851\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#color\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Color Look Up Table<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3689591 e-flex e-con-boxed e-con e-parent\" data-id=\"3689591\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5d3f5d0 e-con-full e-flex e-con e-child\" data-id=\"5d3f5d0\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c149f4f elementor-widget elementor-widget-text-editor\" data-id=\"c149f4f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The STELLA-Q2 represents the most accessible entry point into NASA&#8217;s Science and Technology Education for Land\/Life Assessment instrument family. This ultra-portable device (just 33g bare, 108g with housing) requires absolutely no tools for assembly\u2014simply connect seven components with four small cables, load the CircuitPython interpreter and STELLA software, and you&#8217;re ready to collect data.<\/p><p>The STELLA-Q2 features three spectrometer sensors that measure irradiance in the visible and near-infrared spectrum. Its connector-only design eliminates the need for soldering, making it ideal for classroom settings and students new to scientific instrumentation. The lightweight construction has been successfully tested on consumer-level UAVs, extending its research potential to aerial applications.<\/p><p>Housed in an optional 3D-printed case and mountable on common items like a paint stick for field use, the STELLA-Q2 makes remote sensing technology accessible to learners of all ages while introducing fundamental concepts in engineering, programming, and environmental science.<\/p><div class=\"elementor-element elementor-element-25a0eda e-flex e-con-boxed e-con e-parent e-lazyloaded\" data-id=\"25a0eda\" data-element_type=\"container\"><div class=\"e-con-inner\"><div class=\"elementor-element elementor-element-7007dcb elementor-widget elementor-widget-text-editor\" data-id=\"7007dcb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><p>To\u00a0<strong>build your own STELLA-Q2<\/strong>\u00a0download the\u00a0<a href=\"\/stella\/downloads\/\" target=\"_blank\" rel=\"noopener\">STELLA-Q2 files<\/a> and follow the build steps.<\/p><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ae80118 e-con-full e-flex e-con e-child\" data-id=\"ae80118\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cc3324b elementor-widget elementor-widget-heading\" data-id=\"cc3324b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">STELLA-Q2 Highlights<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5cd8195 premium-blog-align-left elementor-widget elementor-widget-premium-addon-blog\" data-id=\"5cd8195\" data-element_type=\"widget\" data-settings=\"{&quot;scroll_to_offset&quot;:&quot;yes&quot;}\" data-widget_type=\"premium-addon-blog.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t\t\t<div class=\"premium-blog-wrap  premium-blog-list\" data-page=\"714\" data-pagination=\"true\">\n\t\t\t\t\t<div class=\"premium-blog-post-outer-container\" data-total=\"6\">\r\n\t\t\t<div class=\"premium-blog-post-container premium-blog-skin-side\">\r\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\r\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-bright-effect\">\r\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1984\" height=\"1314\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/1769365754502.webp\" class=\"attachment-full size-full wp-image-4170\" alt=\"STELLA at American University with Mike Taylor, Chelsey Brown, Rachel Stagner, Natalia Quinteros Casaverde, Mike Humber, and Allison Bredder and the teacher professional development cohort\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/1769365754502.webp 1984w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/1769365754502-300x199.webp 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/1769365754502-1024x678.webp 1024w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/1769365754502-768x509.webp 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/1769365754502-1536x1017.webp 1536w\" sizes=\"(max-width: 1984px) 100vw, 1984px\" \/>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-overlay\">\r\n\t\t\t\t\t\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/nasa-acres-supports-stella-workshop-american-university\/\" target=\"_self\"><\/a>\r\n\t\t\t\t\t\t\t<\/div>\r\n\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-content-wrapper \">\r\n\r\n\t\t\t\t\t<div class=\"premium-blog-inner-container\">\r\n\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h2 class=\"premium-blog-entry-title\">\r\n\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/nasa-acres-supports-stella-workshop-american-university\/\" target=\"_self\">\r\n\t\t\t\tNASA Acres Supports STELLA Workshop at American University\t\t\t<\/a>\r\n\t\t<\/h2>\r\n\t\t\t\t<div class=\"premium-blog-entry-meta\">\r\n\t\t\t\r\n\t\t\t\t\t\t\t<span class=\"premium-blog-meta-separator\">\u2022<\/span>\r\n\t\t\t\t<div class=\"premium-blog-post-time premium-blog-meta-data\">\r\n\t\t\t\t\t<i class=\"fa fa-calendar-alt\" aria-hidden=\"true\"><\/i>\r\n\t\t\t\t\t<span>February 22, 2026<\/span>\r\n\t\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\t\t<\/div>\r\n\t\t\r\n\t\t\t\t\t<\/div>\r\n\r\n\t\t\t\t\t\t\t<div class=\"premium-blog-content-inner-wrapper\">\r\n\t\t<p class=\"premium-blog-post-content\">NASA's Science and Technology Education for Land\/Life Assessment (STELLA) initiative organized a hands-on workshop for \u2026<\/p>\t\t<\/div>\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\r\n\t\t\t\t<div class=\"premium-blog-post-outer-container\" data-total=\"6\">\r\n\t\t\t<div class=\"premium-blog-post-container premium-blog-skin-side\">\r\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\r\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-bright-effect\">\r\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"2560\" height=\"1920\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/IMG_4001-scaled.jpeg\" class=\"attachment-full size-full wp-image-4158\" alt=\"Nick Barbi showing students how to take spectral readings of vegetation\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/IMG_4001-scaled.jpeg 2560w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/IMG_4001-300x225.jpeg 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/IMG_4001-1024x768.jpeg 1024w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/IMG_4001-768x576.jpeg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/IMG_4001-1536x1152.jpeg 1536w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/02\/IMG_4001-2048x1536.jpeg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-overlay\">\r\n\t\t\t\t\t\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/coastwise-earth-science-workforce\/\" target=\"_self\"><\/a>\r\n\t\t\t\t\t\t\t<\/div>\r\n\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-content-wrapper \">\r\n\r\n\t\t\t\t\t<div class=\"premium-blog-inner-container\">\r\n\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h2 class=\"premium-blog-entry-title\">\r\n\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/coastwise-earth-science-workforce\/\" target=\"_self\">\r\n\t\t\t\tBuilding Tomorrow&#8217;s Earth Science Workforce, One Spectrum at a Time\t\t\t<\/a>\r\n\t\t<\/h2>\r\n\t\t\t\t<div class=\"premium-blog-entry-meta\">\r\n\t\t\t\r\n\t\t\t\t\t\t\t<span class=\"premium-blog-meta-separator\">\u2022<\/span>\r\n\t\t\t\t<div class=\"premium-blog-post-time premium-blog-meta-data\">\r\n\t\t\t\t\t<i class=\"fa fa-calendar-alt\" aria-hidden=\"true\"><\/i>\r\n\t\t\t\t\t<span>February 20, 2026<\/span>\r\n\t\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\t\t<\/div>\r\n\t\t\r\n\t\t\t\t\t<\/div>\r\n\r\n\t\t\t\t\t\t\t<div class=\"premium-blog-content-inner-wrapper\">\r\n\t\t<p class=\"premium-blog-post-content\">COASTWISE (Community Observations and Analysis using Spectroscopic Techniques and Wetlands Imaging to foster Stewardship of \u2026<\/p>\t\t<\/div>\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\r\n\t\t\t\t<div class=\"premium-blog-post-outer-container\" data-total=\"6\">\r\n\t\t\t<div class=\"premium-blog-post-container premium-blog-skin-side\">\r\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\r\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-bright-effect\">\r\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA_bg_inst_SEES.png\" class=\"attachment-full size-full wp-image-3749\" alt=\"NASA SEES students using STELLA\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA_bg_inst_SEES.png 1920w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA_bg_inst_SEES-300x169.png 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA_bg_inst_SEES-1024x576.png 1024w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA_bg_inst_SEES-768x432.png 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA_bg_inst_SEES-1536x864.png 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-overlay\">\r\n\t\t\t\t\t\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/students-build-ai-powered-drone-for-earth-observation-nasa-sees-internship-journey\/\" target=\"_self\"><\/a>\r\n\t\t\t\t\t\t\t<\/div>\r\n\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-content-wrapper \">\r\n\r\n\t\t\t\t\t<div class=\"premium-blog-inner-container\">\r\n\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h2 class=\"premium-blog-entry-title\">\r\n\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/students-build-ai-powered-drone-for-earth-observation-nasa-sees-internship-journey\/\" target=\"_self\">\r\n\t\t\t\tStudents Build AI-Powered Drone for Earth Observation | NASA SEES Internship Journey\t\t\t<\/a>\r\n\t\t<\/h2>\r\n\t\t\t\t<div class=\"premium-blog-entry-meta\">\r\n\t\t\t\r\n\t\t\t\t\t\t\t<span class=\"premium-blog-meta-separator\">\u2022<\/span>\r\n\t\t\t\t<div class=\"premium-blog-post-time premium-blog-meta-data\">\r\n\t\t\t\t\t<i class=\"fa fa-calendar-alt\" aria-hidden=\"true\"><\/i>\r\n\t\t\t\t\t<span>January 30, 2026<\/span>\r\n\t\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\t\t<\/div>\r\n\t\t\r\n\t\t\t\t\t<\/div>\r\n\r\n\t\t\t\t\t\t\t<div class=\"premium-blog-content-inner-wrapper\">\r\n\t\t<p class=\"premium-blog-post-content\">Four high school students leveraged STELLA's accessible design, supportive community, and educational philosophy to build \u2026<\/p>\t\t<\/div>\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\r\n\t\t\t\t<\/div>\n\n\t\t\t\t<div class=\"premium-blog-footer\">\n\t\t\t\t\t\t<nav class=\"premium-blog-pagination-container\" role=\"navigation\" aria-label=\"Pagination\">\r\n\t\t\t\t<span aria-current=\"page\" class=\"page-numbers current\">1<\/span>\n<a class=\"page-numbers\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/714\/page\/2\/\">2<\/a>\n<a class=\"page-numbers\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/714\/page\/3\/\">3<\/a>\n<span class=\"page-numbers dots\">&hellip;<\/span>\n<a class=\"page-numbers\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/714\/page\/5\/\">5<\/a>\n<a class=\"next page-numbers\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/714\/page\/2\/\">Next \u00bb<\/a>\t\t\t<\/nav>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e0f128d e-flex e-con-boxed e-con e-parent\" data-id=\"e0f128d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c90dcec elementor-widget__width-inherit elementor-hidden-mobile elementor-widget elementor-widget-premium-addon-image-button\" data-id=\"c90dcec\" data-element_type=\"widget\" data-widget_type=\"premium-addon-image-button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<a class=\"premium-image-button-none premium-image-button premium-btn-sm premium-image-button-none\" href=\"\/stella\/downloads\/\">\n\t\t\t<div class=\"premium-image-button-text-icon-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<svg class=\"premium-svg-nodraw premium-drawable-icon e-font-icon-svg e-fas-file-download\" aria-hidden=\"true\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224 136V0H24C10.7 0 0 10.7 0 24v464c0 13.3 10.7 24 24 24h336c13.3 0 24-10.7 24-24V160H248c-13.2 0-24-10.8-24-24zm76.45 211.36l-96.42 95.7c-6.65 6.61-17.39 6.61-24.04 0l-96.42-95.7C73.42 337.29 80.54 320 94.82 320H160v-80c0-8.84 7.16-16 16-16h32c8.84 0 16 7.16 16 16v80h65.18c14.28 0 21.4 17.29 11.27 27.36zM377 105L279.1 7c-4.5-4.5-10.6-7-17-7H256v128h128v-6.1c0-6.3-2.5-12.4-7-16.9z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t<span >\n\t\t\t\t\t\tDownload STELLA-Q2 Files\t\t\t\t\t<\/span>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t<\/a>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35210f1 elementor-widget__width-inherit elementor-hidden-desktop elementor-hidden-tablet elementor-widget elementor-widget-premium-addon-image-button\" data-id=\"35210f1\" data-element_type=\"widget\" data-widget_type=\"premium-addon-image-button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<a class=\"premium-image-button-none premium-image-button premium-btn-sm premium-image-button-none\" href=\"\/stella\/downloads\/\">\n\t\t\t<div class=\"premium-image-button-text-icon-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<svg class=\"premium-svg-nodraw premium-drawable-icon e-font-icon-svg e-fas-file-download\" aria-hidden=\"true\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224 136V0H24C10.7 0 0 10.7 0 24v464c0 13.3 10.7 24 24 24h336c13.3 0 24-10.7 24-24V160H248c-13.2 0-24-10.8-24-24zm76.45 211.36l-96.42 95.7c-6.65 6.61-17.39 6.61-24.04 0l-96.42-95.7C73.42 337.29 80.54 320 94.82 320H160v-80c0-8.84 7.16-16 16-16h32c8.84 0 16 7.16 16 16v80h65.18c14.28 0 21.4 17.29 11.27 27.36zM377 105L279.1 7c-4.5-4.5-10.6-7-17-7H256v128h128v-6.1c0-6.3-2.5-12.4-7-16.9z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t<span >\n\t\t\t\t\t\tDownload STELLA-Q2 Files\t\t\t\t\t<\/span>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t<\/a>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f5935aa e-flex e-con-boxed e-con e-parent\" data-id=\"f5935aa\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-fbb66b4 e-con-full e-flex e-con e-child\" data-id=\"fbb66b4\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f92c6de elementor-widget elementor-widget-heading\" data-id=\"f92c6de\" data-element_type=\"widget\" id=\"build\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">STELLA-Q2 Build Steps<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d71681e e-con-full e-flex e-con e-child\" data-id=\"d71681e\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2ce423f e-con-full e-flex e-con e-child\" data-id=\"2ce423f\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f737e41 e-n-tabs-mobile elementor-widget elementor-widget-n-tabs\" data-id=\"f737e41\" data-element_type=\"widget\" data-settings=\"{&quot;tabs_justify_horizontal&quot;:&quot;center&quot;,&quot;horizontal_scroll&quot;:&quot;disable&quot;}\" data-widget_type=\"nested-tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-tabs\" data-widget-number=\"259227201\" aria-label=\"Tabs. Open items with Enter or Space, close with Escape and navigate using the Arrow keys.\">\n\t\t\t<div class=\"e-n-tabs-heading\" role=\"tablist\">\n\t\t\t\t\t<button id=\"e-n-tab-title-2592272011\" class=\"e-n-tab-title\" aria-selected=\"true\" data-tab-index=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"e-n-tab-content-2592272011\" style=\"--n-tabs-title-order: 1;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tStep 1. Parts Needed\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-2592272012\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-2592272012\" style=\"--n-tabs-title-order: 2;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tStep 2. Build Instructions\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-2592272013\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-2592272013\" style=\"--n-tabs-title-order: 3;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tStep 3. Programming Instructions\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t<div class=\"e-n-tabs-content\">\n\t\t\t\t<div id=\"e-n-tab-content-2592272011\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-2592272011\" data-tab-index=\"1\" style=\"--n-tabs-title-order: 1;\" class=\"e-active elementor-element elementor-element-1021159 e-con-full e-flex e-con e-child\" data-id=\"1021159\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-74965a1 elementor-widget elementor-widget-shortcode\" data-id=\"74965a1\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-3\" class=\"tablepress tablepress-id-3\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Line<\/th><th class=\"column-2\">QTY<\/th><th class=\"column-3\">Item<\/th><th class=\"column-4\">Cost each ($)<\/th><th class=\"column-5\">Manufacturer<\/th><th class=\"column-6\">Manufacturer PN<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">1<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">Thing Plus RP2040<\/td><td class=\"column-4\">20<\/td><td class=\"column-5\">SparkFun<\/td><td class=\"column-6\">DEV-17745<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">2<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">TRIAD spectral sensor<\/td><td class=\"column-4\">70<\/td><td class=\"column-5\">SparkFun<\/td><td class=\"column-6\">SEN-15050<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">3<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">PCF8523 real time clock<\/td><td class=\"column-4\">5<\/td><td class=\"column-5\">Adafruit<\/td><td class=\"column-6\">5189<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">4<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">CR1220 battery for clock module<\/td><td class=\"column-4\">1<\/td><td class=\"column-5\">widely available<\/td><td class=\"column-6\">CR1220<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">5<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">128x32 OLED display<\/td><td class=\"column-4\">12.5<\/td><td class=\"column-5\">Adafruit<\/td><td class=\"column-6\">4440<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">6<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">i2c button<\/td><td class=\"column-4\">5<\/td><td class=\"column-5\">SparkFun<\/td><td class=\"column-6\">BOB-16842<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">7<\/td><td class=\"column-2\">4<\/td><td class=\"column-3\">qwiic cables, 100mm<\/td><td class=\"column-4\">1<\/td><td class=\"column-5\">Adafruit<\/td><td class=\"column-6\">4210<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">8<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">battery disconnect switch<\/td><td class=\"column-4\">3<\/td><td class=\"column-5\">Adafruit<\/td><td class=\"column-6\">3064<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">9* not used with 3D printed case<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">cylindrical battery, 2200mAh<\/td><td class=\"column-4\">10<\/td><td class=\"column-5\">Adafruit<\/td><td class=\"column-6\">1781<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\">10<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">USB C cable<\/td><td class=\"column-4\">5<\/td><td class=\"column-5\">SparkFun<\/td><td class=\"column-6\">CAB-16905<\/td>\n<\/tr>\n<tr class=\"row-12\">\n\t<td class=\"column-1\">11<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">micro SD card<\/td><td class=\"column-4\">10<\/td><td class=\"column-5\">Adafruit<\/td><td class=\"column-6\">1294<\/td>\n<\/tr>\n<tr class=\"row-13\">\n\t<td class=\"column-1\">12<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">micro SD card reader<\/td><td class=\"column-4\">7<\/td><td class=\"column-5\">Adafruit<\/td><td class=\"column-6\">5212<\/td>\n<\/tr>\n<tr class=\"row-14\">\n\t<td class=\"column-1\">13* used with 3D  printed case<\/td><td class=\"column-2\">1<\/td><td class=\"column-3\">Lithium Ion Polymer Battery - 3.7V 400mAh<\/td><td class=\"column-4\">7<\/td><td class=\"column-5\">Adafruit<\/td><td class=\"column-6\">3898<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-2592272012\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-2592272012\" data-tab-index=\"2\" style=\"--n-tabs-title-order: 2;\" class=\" elementor-element elementor-element-6f81235 e-con-full e-flex e-con e-child\" data-id=\"6f81235\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-404c4e6 elementor-widget elementor-widget-text-editor\" data-id=\"404c4e6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>1. Download the latest <a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/downloads\/\">STELLA-Q2 FILES.ZIP<\/a> from the webpage<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-812cf06 elementor-widget elementor-widget-text-editor\" data-id=\"812cf06\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>2. Print the diagram full size on a single sheet of regular office paper.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48c2f2f elementor-widget elementor-widget-text-editor\" data-id=\"48c2f2f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>3. Print the plastic parts.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1452341 elementor-widget elementor-widget-text-editor\" data-id=\"1452341\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>4. Remove the scaffolding from the parts. (Scaffolding photos)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9cbe9a elementor-widget elementor-widget-image-gallery\" data-id=\"f9cbe9a\" data-element_type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div id='gallery-1' class='gallery galleryid-3748 gallery-columns-4 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"f9cbe9a\" data-elementor-lightbox-title=\"4 STELLA-Q2 remove scaffolding bottom\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAxOSwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvNC1TVEVMTEEtUTItcmVtb3ZlLXNjYWZmb2xkaW5nLWJvdHRvbS5qcGciLCJzbGlkZXNob3ciOiJmOWNiZTlhIn0%3D\" href='https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-bottom.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"224\" height=\"300\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-bottom-224x300.jpg\" class=\"attachment-medium size-medium\" alt=\"STELLA-Q2 remove scaffolding top\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-bottom-224x300.jpg 224w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-bottom-766x1024.jpg 766w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-bottom-768x1027.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-bottom.jpg 1144w\" sizes=\"(max-width: 224px) 100vw, 224px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"f9cbe9a\" data-elementor-lightbox-title=\"4 STELLA-Q2 remove scaffolding top\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAyMCwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvNC1TVEVMTEEtUTItcmVtb3ZlLXNjYWZmb2xkaW5nLXRvcC5qcGciLCJzbGlkZXNob3ciOiJmOWNiZTlhIn0%3D\" href='https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-top.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"226\" height=\"300\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-top-226x300.jpg\" class=\"attachment-medium size-medium\" alt=\"STELLA-Q2 remove scaffolding top\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-top-226x300.jpg 226w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-top-770x1024.jpg 770w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-top-768x1021.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-remove-scaffolding-top.jpg 928w\" sizes=\"(max-width: 226px) 100vw, 226px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"f9cbe9a\" data-elementor-lightbox-title=\"4 STELLA-Q2 scaffolding removed bottom\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAyMSwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvNC1TVEVMTEEtUTItc2NhZmZvbGRpbmctcmVtb3ZlZC1ib3R0b20uanBnIiwic2xpZGVzaG93IjoiZjljYmU5YSJ9\" href='https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-bottom.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"235\" height=\"300\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-bottom-235x300.jpg\" class=\"attachment-medium size-medium\" alt=\"STELLA-Q2 scaffolding removed\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-bottom-235x300.jpg 235w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-bottom-803x1024.jpg 803w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-bottom-768x980.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-bottom.jpg 1138w\" sizes=\"(max-width: 235px) 100vw, 235px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"f9cbe9a\" data-elementor-lightbox-title=\"4 STELLA-Q2 scaffolding removed top\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAyMiwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvNC1TVEVMTEEtUTItc2NhZmZvbGRpbmctcmVtb3ZlZC10b3AuanBnIiwic2xpZGVzaG93IjoiZjljYmU5YSJ9\" href='https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-top.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"242\" height=\"300\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-top-242x300.jpg\" class=\"attachment-medium size-medium\" alt=\"STELLA-Q2 scaffolding removed\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-top-242x300.jpg 242w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-top-825x1024.jpg 825w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-top-768x953.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/4-STELLA-Q2-scaffolding-removed-top.jpg 1138w\" sizes=\"(max-width: 242px) 100vw, 242px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1d5411 elementor-widget elementor-widget-text-editor\" data-id=\"f1d5411\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>5. Lay the electronics parts out on the diagram. (Build 1 photo)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f0aab0c elementor-widget elementor-widget-image\" data-id=\"f0aab0c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/5-STELLA-Q2-build-1.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"5 STELLA-Q2 build 1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAyMywidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvNS1TVEVMTEEtUTItYnVpbGQtMS5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"616\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/5-STELLA-Q2-build-1-768x616.jpg\" class=\"attachment-medium_large size-medium_large wp-image-3023\" alt=\"STELLA-Q2 layout wiring\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/5-STELLA-Q2-build-1-768x616.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/5-STELLA-Q2-build-1-300x241.jpg 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/5-STELLA-Q2-build-1-1024x821.jpg 1024w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/5-STELLA-Q2-build-1-1536x1231.jpg 1536w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/5-STELLA-Q2-build-1.jpg 1644w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9292051 elementor-widget elementor-widget-text-editor\" data-id=\"9292051\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>6. Connect them with cables to match the diagram. (Build 2 photo)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47e57a1 elementor-widget elementor-widget-image\" data-id=\"47e57a1\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/6-STELLA-Q2-build-2.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"6 STELLA-Q2 build 2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAyNCwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvNi1TVEVMTEEtUTItYnVpbGQtMi5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"599\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/6-STELLA-Q2-build-2-768x599.jpg\" class=\"attachment-medium_large size-medium_large wp-image-3024\" alt=\"STELLA-Q2 wiring layout\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/6-STELLA-Q2-build-2-768x599.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/6-STELLA-Q2-build-2-300x234.jpg 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/6-STELLA-Q2-build-2-1024x799.jpg 1024w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/6-STELLA-Q2-build-2-1536x1199.jpg 1536w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/6-STELLA-Q2-build-2.jpg 1694w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac14fc8 elementor-widget elementor-widget-text-editor\" data-id=\"ac14fc8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p2\">7. Place the connected parts in their respective slots to match the photograph. (Build 3 photo)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1138d53 elementor-widget elementor-widget-image\" data-id=\"1138d53\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/7-STELLA-Q2-build-3.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"7 STELLA-Q2 build 3\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAyNSwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvNy1TVEVMTEEtUTItYnVpbGQtMy5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"807\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/7-STELLA-Q2-build-3-768x807.jpg\" class=\"attachment-medium_large size-medium_large wp-image-3025\" alt=\"STELLA-Q2 wiring loose\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/7-STELLA-Q2-build-3-768x807.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/7-STELLA-Q2-build-3-285x300.jpg 285w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/7-STELLA-Q2-build-3-974x1024.jpg 974w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/7-STELLA-Q2-build-3.jpg 1442w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-781bdfb elementor-widget elementor-widget-text-editor\" data-id=\"781bdfb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>8. Route the wires to approximate the photograph. (Build 4 photo).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f6928e elementor-widget elementor-widget-text-editor\" data-id=\"5f6928e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>9. Install the retainer clips to match the photograph. (Also Build 4 photo)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e0c1aa elementor-widget elementor-widget-image\" data-id=\"3e0c1aa\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/9-STELLA-Q2-build-4.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"9 STELLA-Q2 build 4\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAyNiwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvOS1TVEVMTEEtUTItYnVpbGQtNC5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"935\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/9-STELLA-Q2-build-4-768x935.jpg\" class=\"attachment-medium_large size-medium_large wp-image-3026\" alt=\"STELLA-Q2 wiring\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/9-STELLA-Q2-build-4-768x935.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/9-STELLA-Q2-build-4-246x300.jpg 246w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/9-STELLA-Q2-build-4-841x1024.jpg 841w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/9-STELLA-Q2-build-4.jpg 1244w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d217cd8 elementor-widget elementor-widget-text-editor\" data-id=\"d217cd8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>10. Install the bottom cover.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-88949e1 elementor-widget elementor-widget-text-editor\" data-id=\"88949e1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>11. Install the two signal lamp windows. (Lamp covers photos)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a64a09d elementor-widget elementor-widget-image-gallery\" data-id=\"a64a09d\" data-element_type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div id='gallery-2' class='gallery galleryid-3748 gallery-columns-2 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"a64a09d\" data-elementor-lightbox-title=\"11 STELLA-Q2 lamp covers installed\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAyNywidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvMTEtU1RFTExBLVEyLWxhbXAtY292ZXJzLWluc3RhbGxlZC5qcGciLCJzbGlkZXNob3ciOiJhNjRhMDlkIn0%3D\" href='https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-installed.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"260\" height=\"300\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-installed-260x300.jpg\" class=\"attachment-medium size-medium\" alt=\"STELLA-Q2 lamp covers installed\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-installed-260x300.jpg 260w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-installed-888x1024.jpg 888w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-installed-768x886.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-installed.jpg 1110w\" sizes=\"(max-width: 260px) 100vw, 260px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"a64a09d\" data-elementor-lightbox-title=\"11 STELLA-Q2 lamp covers loose\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MzAyOCwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvMTEtU1RFTExBLVEyLWxhbXAtY292ZXJzLWxvb3NlLmpwZyIsInNsaWRlc2hvdyI6ImE2NGEwOWQifQ%3D%3D\" href='https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-loose.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"266\" height=\"300\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-loose-266x300.jpg\" class=\"attachment-medium size-medium\" alt=\"STELLA-Q2 lamp covers loose\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-loose-266x300.jpg 266w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-loose-908x1024.jpg 908w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-loose-768x866.jpg 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/11-STELLA-Q2-lamp-covers-loose.jpg 1108w\" sizes=\"(max-width: 266px) 100vw, 266px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f6da8d elementor-widget elementor-widget-text-editor\" data-id=\"1f6da8d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p3\">12. Connect the Q2 to the computer. If the computer asks if it\u2019s OK to connect to the Thing Plus RP2040, click to allow the connection.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-2592272013\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-2592272013\" data-tab-index=\"3\" style=\"--n-tabs-title-order: 3;\" class=\" elementor-element elementor-element-af02256 e-con-full e-flex e-con e-child\" data-id=\"af02256\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ec3a9e6 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"ec3a9e6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p2\">1. Break the pointy ends off a couple of toothpicks, so you have some short round rods. (Don\u2019t use something metal, like a paperclip or wire.)<\/p><p class=\"p2\">2. Drop the toothpick rods into the b and r (boot, and reset) square holes.<\/p><p class=\"p2\">3. Hold down the boot button with the toothpick rod, and click and release the reset button with the second toothpick rod.<\/p><p class=\"p2\">4. A drive labeled RP1-RP2 should show up on your computer\u2019s drive list\/file explorer\/ finder.<\/p><p class=\"p2\">5. Uncompressed\/ Extract the contents of the Q2 zip file.<\/p><p class=\"p2\">6. Open the UF2 folder, and drag and drop copy the file onto the RP1-RP2 drive. The filename will be adafruit-circuitpython- sparkfun_thing_plus_rp2040-en_US-x.x.x.uf2, where x is a number or numbers.<\/p><p class=\"p2\">7. Allow the copy to proceed. When finished, the RP1-RP2 drive will self- eject, to be replaced by the CIRCUITPY drive.<\/p><p class=\"p2\">8. Open the CIRCUITPY drive. You\u2019ll see a boot_out.txt file, a lib folder, and a code.py file. You might also see a folder named sd. If you don\u2019t see the sd folder, create it. Don\u2019t put anything in it, it needs to be an empty folder and it needs that specific name.<\/p><p class=\"p2\">9. Open the q2-code-and-libraries folder, to find the code.py and the lib folder.<\/p><p class=\"p2\">10. Copy both, the lib folder and the code.py file, onto the CIRCUITPY drive.<\/p><p class=\"p2\">11. Your computer will ask if you want to replace the existing files. You do. Replace, don\u2019t Merge.<\/p><p class=\"p3\">12. Once the copying is done, you will have, if all goes well, a working Q2 instrument.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a495da elementor-widget elementor-widget-text-editor\" data-id=\"3a495da\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p1\"><b>Date and time set instructions: Setup: You\u2019ll need to set the date and time.<\/b><b><\/b><\/p><p class=\"p1\">1. Open a Chrome browser window on your computer. It has to be Chrome for this to work.<\/p><p class=\"p1\">2. Navigate to https:\/\/code.circuitpython.org\/<\/p><p class=\"p1\">3. Select USB as your type of connection.<\/p><p class=\"p1\">4. Then click on the Connect to Device button.<\/p><p class=\"p1\">5. Choose the device named Thing Plus RP2040(cu.usbmodemx), where x is a four digit number.<\/p><p class=\"p1\">6. Then click the Use CIRCUITPY to select the USB host folder.<\/p><p class=\"p1\">7. Your computer may ask if Google Chrome.app may access files on a removable volume. Allow this.<\/p><p class=\"p1\">8. On the bottom of the browser window, there are two buttons, Editor and Serial. Click on the Serial button to open a Serial dialogue panel. That\u2019s where you\u2019ll set the time.<\/p><p class=\"p1\">9. Click the Restart button at the top of the serial panel to restart the Q2 instrument program. You\u2019ll see a lot of output go by. You can safely ignore it, or look at the code later if you are interested in finding out about those lines.<\/p><p class=\"p1\">10. Hold down the MODE button on the Q2 for a good long time ~10s, until the serial dialogue reports:<\/p><p class=\"p2\">long_press<\/p><p class=\"p2\">The date is Sunday 2093-5-12 The time is 15:44:52<\/p><p class=\"p2\">Current year is 2093. Enter a new year and press return, or press return to skip.<\/p><p class=\"p1\">Your values for date and time will likely be different.<\/p><p class=\"p1\"><b>Date and time set instructions: Enter the new date and time.<\/b><b><\/b><\/p><p class=\"p1\">1. Enter the correct year, by clicking in the serial panel and then typing the year number. (2025 at the time of this writing)<\/p><p class=\"p1\">2. Do the same for month, and for day.<\/p><p class=\"p1\">3. For the UTC time, look up the correct hour at https:\/\/time.is\/UTC or something similar. Geospatial instruments use UTC time to avoid confusion about timezones and daylight savings time shifts.<\/p><p class=\"p1\">4. Enter the correct hour for UTC, and then the minutes and seconds, and<\/p><p class=\"p1\">then the three letter code listed for the day of the week.<\/p><p class=\"p1\">5. After you enter the day, the instrument will return to regular function. You can unplug the Q2 instrument from the computer and go measure the spectra of light reflected off of things! (Don\u2019t point the sensor at the sun, as it\u2019s too bright for the sensor and will likely damage it.)<\/p><p class=\"p3\">If you want to check the time, restart the instrument and look at the display screen.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-650e095 e-flex e-con-boxed e-con e-parent\" data-id=\"650e095\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-082068a elementor-widget__width-inherit elementor-hidden-mobile elementor-widget elementor-widget-premium-addon-image-button\" data-id=\"082068a\" data-element_type=\"widget\" data-widget_type=\"premium-addon-image-button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<a class=\"premium-image-button-none premium-image-button premium-btn-sm premium-image-button-none\" href=\"\/stella\/downloads\/\">\n\t\t\t<div class=\"premium-image-button-text-icon-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<svg class=\"premium-svg-nodraw premium-drawable-icon e-font-icon-svg e-fas-file-download\" aria-hidden=\"true\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224 136V0H24C10.7 0 0 10.7 0 24v464c0 13.3 10.7 24 24 24h336c13.3 0 24-10.7 24-24V160H248c-13.2 0-24-10.8-24-24zm76.45 211.36l-96.42 95.7c-6.65 6.61-17.39 6.61-24.04 0l-96.42-95.7C73.42 337.29 80.54 320 94.82 320H160v-80c0-8.84 7.16-16 16-16h32c8.84 0 16 7.16 16 16v80h65.18c14.28 0 21.4 17.29 11.27 27.36zM377 105L279.1 7c-4.5-4.5-10.6-7-17-7H256v128h128v-6.1c0-6.3-2.5-12.4-7-16.9z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t<span >\n\t\t\t\t\t\tDownload Optical Adapter Files\t\t\t\t\t<\/span>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t<\/a>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fb6f9d2 elementor-widget__width-inherit elementor-hidden-desktop elementor-hidden-tablet elementor-widget elementor-widget-premium-addon-image-button\" data-id=\"fb6f9d2\" data-element_type=\"widget\" data-widget_type=\"premium-addon-image-button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<a class=\"premium-image-button-none premium-image-button premium-btn-sm premium-image-button-none\" href=\"\/stella\/downloads\/\">\n\t\t\t<div class=\"premium-image-button-text-icon-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<svg class=\"premium-svg-nodraw premium-drawable-icon e-font-icon-svg e-fas-file-download\" aria-hidden=\"true\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224 136V0H24C10.7 0 0 10.7 0 24v464c0 13.3 10.7 24 24 24h336c13.3 0 24-10.7 24-24V160H248c-13.2 0-24-10.8-24-24zm76.45 211.36l-96.42 95.7c-6.65 6.61-17.39 6.61-24.04 0l-96.42-95.7C73.42 337.29 80.54 320 94.82 320H160v-80c0-8.84 7.16-16 16-16h32c8.84 0 16 7.16 16 16v80h65.18c14.28 0 21.4 17.29 11.27 27.36zM377 105L279.1 7c-4.5-4.5-10.6-7-17-7H256v128h128v-6.1c0-6.3-2.5-12.4-7-16.9z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t<span >\n\t\t\t\t\t\tDownload Optical Adapter Files\t\t\t\t\t<\/span>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t<\/a>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b308a76 e-flex e-con-boxed e-con e-parent\" data-id=\"b308a76\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7d688dd elementor-widget elementor-widget-heading\" data-id=\"7d688dd\" data-element_type=\"widget\" id=\"optical\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">STELLA-Q2 Optical Adapter<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10c56d5 elementor-widget elementor-widget-text-editor\" data-id=\"10c56d5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 style=\"--tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw-rotate: 0; --tw-skew-x: 0; --tw-skew-y: 0; --tw-scale-x: 1; --tw-scale-y: 1; --tw-scroll-snap-strictness: proximity; --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, .5); --tw-ring-offset-shadow: 0 0 rgba(0,0,0,0); --tw-ring-shadow: 0 0 rgba(0,0,0,0); --tw-shadow: 0 0 rgba(0,0,0,0); --tw-shadow-colored: 0 0 rgba(0,0,0,0); font-size: 20px; font-weight: 600; margin-top: 0.6rem; margin-bottom: 0.3rem; color: #111827; line-height: 1.3; font-family: Inter, sans-serif; border: 0px solid #e3e3e3;\">Universal 1.25&#8243; Optical Coupling for Multi-Scale Spectroscopy<\/h3><hr style=\"border-top: 1px solid #cdcdcd; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-right-color: #cdcdcd; border-bottom-color: #cdcdcd; border-left-color: #cdcdcd; --tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw-rotate: 0; --tw-skew-x: 0; --tw-skew-y: 0; --tw-scale-x: 1; --tw-scale-y: 1; --tw-scroll-snap-strictness: proximity; --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, .5); --tw-ring-offset-shadow: 0 0 rgba(0,0,0,0); --tw-ring-shadow: 0 0 rgba(0,0,0,0); --tw-shadow: 0 0 rgba(0,0,0,0); --tw-shadow-colored: 0 0 rgba(0,0,0,0); height: 0px; color: inherit; margin-top: 0.8em; margin-bottom: 0.8em; font-family: Inter, sans-serif; font-size: 16px; background-color: #ffffff;\" \/><p class=\"mb-2 whitespace-pre-wrap\" style=\"--tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw-rotate: 0; --tw-skew-x: 0; --tw-skew-y: 0; --tw-scale-x: 1; --tw-scale-y: 1; --tw-scroll-snap-strictness: proximity; --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, .5); --tw-ring-offset-shadow: 0 0 rgba(0,0,0,0); --tw-ring-shadow: 0 0 rgba(0,0,0,0); --tw-shadow: 0 0 rgba(0,0,0,0); --tw-shadow-colored: 0 0 rgba(0,0,0,0); margin-bottom: 1.25em; white-space-collapse: preserve; color: #424242; font-family: Inter, sans-serif; font-size: 16px; border: 0px solid #e3e3e3;\">The <span style=\"--tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw-rotate: 0; --tw-skew-x: 0; --tw-skew-y: 0; --tw-scale-x: 1; --tw-scale-y: 1; --tw-scroll-snap-strictness: proximity; --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, .5); --tw-ring-offset-shadow: 0 0 rgba(0,0,0,0); --tw-ring-shadow: 0 0 rgba(0,0,0,0); --tw-shadow: 0 0 rgba(0,0,0,0); --tw-shadow-colored: 0 0 rgba(0,0,0,0); font-weight: 600; color: #111827; border: 0px solid #e3e3e3;\">STELLA Optics Adapter<\/span> connects your STELLA-Q2 spectrometer (STELLA-1.2 RS support coming soon) to any telescope, microscope, or optical system with a standard 1.25&#8243; eyepiece socket. This simple adapter transforms STELLA into a precision optical spectroscopy tool, narrowing the native 20\u00b0 field of view to approximately 1\u00b0 when paired with a 20x telescope\u2014providing 20x improvement in spatial resolution. Point your adapted STELLA at celestial objects to teach astronomical spectroscopy, at distant terrestrial targets for high-resolution environmental monitoring, or through a microscope to characterize bacterial cultures and tissue samples by spectral absorption.<\/p><p class=\"mb-2 whitespace-pre-wrap\" style=\"--tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw-rotate: 0; --tw-skew-x: 0; --tw-skew-y: 0; --tw-scale-x: 1; --tw-scale-y: 1; --tw-scroll-snap-strictness: proximity; --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, .5); --tw-ring-offset-shadow: 0 0 rgba(0,0,0,0); --tw-ring-shadow: 0 0 rgba(0,0,0,0); --tw-shadow: 0 0 rgba(0,0,0,0); --tw-shadow-colored: 0 0 rgba(0,0,0,0); margin-top: 1.25em; margin-bottom: 1.25em; white-space-collapse: preserve; color: #424242; font-family: Inter, sans-serif; font-size: 16px; border: 0px solid #e3e3e3;\"><span style=\"--tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw-rotate: 0; --tw-skew-x: 0; --tw-skew-y: 0; --tw-scale-x: 1; --tw-scale-y: 1; --tw-scroll-snap-strictness: proximity; --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, .5); --tw-ring-offset-shadow: 0 0 rgba(0,0,0,0); --tw-ring-shadow: 0 0 rgba(0,0,0,0); --tw-shadow: 0 0 rgba(0,0,0,0); --tw-shadow-colored: 0 0 rgba(0,0,0,0); font-weight: 600; color: #111827; border: 0px solid #e3e3e3;\">Setup is simple:<\/span> Attach the adapter to STELLA-Q2, insert into the 1.25&#8243; eyepiece socket, point at your target (Sun, light source, or sample), then spread wax paper over the eyepiece and defocus until light evenly covers the entire eyepiece\u2014this ensures uniform illumination across all 18 spectral sensor channels for accurate measurements. From microscopic cells to distant stars, the STELLA Optics Adapter enables students to experience how spectroscopy serves as a universal measurement tool across all scales of scientific investigation, bridging molecular biology, environmental science, and astronomy with a single affordable instrument.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77c79f6 elementor-arrows-position-inside elementor-pagination-position-outside elementor-widget elementor-widget-image-carousel\" data-id=\"77c79f6\" data-element_type=\"widget\" data-settings=\"{&quot;slides_to_show&quot;:&quot;3&quot;,&quot;navigation&quot;:&quot;both&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;speed&quot;:500}\" data-widget_type=\"image-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-carousel-wrapper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Image Carousel\" dir=\"ltr\">\n\t\t\t<div class=\"elementor-image-carousel swiper-wrapper\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 of 5\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA-Q2_optical_adapter_pieces-225x300.jpg\" alt=\"STELLA-Q2 optical adapter pieces\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 of 5\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA-Q2_optical_adapter_pieces2-225x300.jpg\" alt=\"STELLA-Q2 optical adapter pieces\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"3 of 5\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA-Q2_optical_adapter_pieces3-225x300.jpg\" alt=\"STELLA-Q2 optical adapter pieces\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"4 of 5\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA-Q2_optical_adapter_pieces4-300x225.jpg\" alt=\"STELLA-Q2 optical adapter pieces\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"5 of 5\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2026\/01\/STELLA-Q2_optical_adapter-225x300.jpg\" alt=\"STELLA-Q2 optical adapter pieces\" \/><\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-left\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M646 125C629 125 613 133 604 142L308 442C296 454 292 471 292 487 292 504 296 521 308 533L604 854C617 867 629 875 646 875 663 875 679 871 692 858 704 846 713 829 713 812 713 796 708 779 692 767L438 487 692 225C700 217 708 204 708 187 708 171 704 154 692 142 675 129 663 125 646 125Z\"><\/path><\/svg>\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-right\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M696 533C708 521 713 504 713 487 713 471 708 454 696 446L400 146C388 133 375 125 354 125 338 125 325 129 313 142 300 154 292 171 292 187 292 204 296 221 308 233L563 492 304 771C292 783 288 800 288 817 288 833 296 850 308 863 321 871 338 875 354 875 371 875 388 867 400 854L696 533Z\"><\/path><\/svg>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-aded45f e-flex e-con-boxed e-con e-parent\" data-id=\"aded45f\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d35e7b2 elementor-widget elementor-widget-heading\" data-id=\"d35e7b2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">STELLA-Q2 Operation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c0faaaf elementor-widget elementor-widget-text-editor\" data-id=\"c0faaaf\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Charging:<\/strong><\/p><p>The Thing Plus RP2040 microcontroller has a built-in lithium battery charger. When the microcontroller is connected to USB, it will try to charge the battery. Since there is a switch in between the battery and the microcontroller, the charging circuit can only charge the battery when the power switch is on.<\/p><p>Start the Q2 by itself, disconnected from power, to make sure that it\u2019s on.<br \/>Then connect the Q2 to a USB-C power source to charge the battery.<\/p><p>The orange light above the battery icon on the Q2 will come on full brightness when the battery is charging. When the battery is fully charged, the orange light will turn off. If the orange light is dim or flickering, the charging circuit is not connected to the battery.<\/p><p><span style=\"text-decoration: underline;\"><strong>The MODE button:<\/strong><\/span><\/p><p>The microcontroller does not respond quickly to the button. It may take as much as half a second to register that you have pushed the button. The button light itself will light up to let you know that the microcontroller has detected your push.<\/p><p>Click it once to change from continuous recording to burst recording, detailed below.<\/p><p>Click it again to measure and record a single burst of measurements.<\/p><p>Hold it for 2-3 seconds to turn the lamps on or off. More detail below. Hold it for greater than 10 seconds to set the clock. Lots more detail below.<\/p><p><strong>Recording:<\/strong><\/p><p>The REC light on the Q2 will light up orange during startup, if the SD card is installed.<\/p><p>The REC light will show red if there\u2019s no SD card installed. After startup, the REC light will flash green each time the instrument records a datapoint.<\/p><p>Green indicates that the instrument is in continuous recording mode.<\/p><p>If you push the MODE button, the instrument will exit continuous recording mode, and enter burst mode.<\/p><p>There after, when you push the MODE button, the instrument will take one burst of data points and stop.<\/p><p>Blue indicates that the instrument is recording in burst mode. The light will flash blue once for each data point recorded.<\/p><p>Press the button again to take another burst of data points.<\/p><p>The burst count, and the sample interval for continuous recording, are located at the top of the code.py file that contains the instrument code. Edit that file on the CIRCUITPY drive to change those values.<\/p><p><strong>Lamps:<\/strong><\/p><p>Hold the button for 2-3 seconds to turn on the LED lamps on the spectrometer board. The three lamps emit light in the visible, near infrared, and ultraviolet, respectively.<\/p><p>Hold the button for 2-3 seconds again to turn the lamps off.<\/p><p><strong>Set the instrument clock:<\/strong><\/p><p>If you hold the button for a little longer than 10 seconds, the instrument will enter clock set mode. You\u2019ll need to connect the instrument to a computer in order to set the time.<\/p><p>To clear the instrument out of clock set mode, either set the clock as below, or turn the instrument off and restart it.<\/p><p><strong>Date and time set instructions: Setup:<\/strong><br \/>You\u2019ll need to set the date and time.<\/p><ol><li style=\"list-style-type: none;\"><ol><li>Open a Chrome browser window on your computer. It has to be Chrome for this to work.<\/li><li>Navigate to https:\/\/code.circuitpython.org\/<\/li><li>Select USB as your type of connection.<\/li><li>Then click on the Connect to Device button.<\/li><\/ol><\/li><\/ol><ol><li>Choose the device named Thing Plus RP2040(cu.usbmodemx), where x is a four digit number.<\/li><li>Then click the Use CIRCUITPY to select the USB host folder.<\/li><li>Your computer may ask if Google Chrome.app may access files on a removable volume. Allow this.<\/li><li>On the bottom of the browser window, there are two buttons, Editor and Serial. Click on the Serial button to open a Serial dialogue panel. That\u2019s where you\u2019ll set the time.<\/li><li>Click the Restart button at the top of the serial panel to restart the Q2 instrument program. You\u2019ll see a lot of output go by. You can safely ignore it, or look at the code later if you are interested in finding out about those lines.<\/li><li>Hold down the MODE button on the Q2 for a good long time ~10s, until the serial dialogue reports: long_press The date is Sunday 2093-5-12 The time is 15:44:52 Current year is 2093. Enter a new year and press return, or press return to skip.<\/li><\/ol><p>Your values for date and time will likely be different.<\/p><p><strong>Date and time set instructions:<\/strong><\/p><ol><li>Enter the new date and time. Enter the correct year, by clicking in the serial panel and then typing the year number. (2025 at the time of this writing)<\/li><li>Do the same for month, and for day.<\/li><li>For the UTC time, look up the correct hour at https:\/\/time.is\/UTC or<br \/>something similar. Geospatial instruments use UTC time to avoid confusion about timezones and daylight savings time shifts.<\/li><li>Enter the correct hour for UTC, and then the minutes and seconds,<br \/>and then the three letter code listed for the day of the week.<\/li><li>After you enter the day, the instrument will return to regular function.<br \/>You can unplug the Q2 instrument from the computer and go measure<br \/>the spectra of light reflected off of things! (Don\u2019t point the sensor at<br \/>the sun, as it\u2019s too bright for the sensor and will likely damage it.)<\/li><\/ol><p>If you want to check the time, restart the instrument and look at the display<br \/>screen.<\/p><p><strong>The Graph:<\/strong><\/p><p>The instrument display shows a graph of irradiance (a measure of brightness) over<br \/>wavelength. The wavelengths on the x-axis cover 410nm to 940nm. A nanometer,<br \/>abbreviated nm, is one billionth of a meter. Around 400 to 700 nm wavelength light<br \/>is visible to human eyes, with some exceptions for color-blindness.<\/p><p>The shorter wavelength light is blue, marked below the graph by B.<br \/><br \/>Medium visible wavelength light is green, marked below by G.<br \/><br \/>Longer wavelengths of light, in the middle of this graph, are red, marked by R.<br \/><br \/>Longer wavelengths than red are invisible to human eye, so we call them \u201cbelow red\u201d or infrared, marked by IR.<br \/><br \/>The irradiance values on the y-axis can be displayed on a linear scale or a log scale. This setting is in the code.py file, near the top.<br \/><br \/>When displaying in log scale, a black \u201clog y\u201d will show on the bottom of the graph on the left.<br \/><br \/>When displaying in linear scale, no text will show.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-82fbb41 e-flex e-con-boxed e-con e-parent\" data-id=\"82fbb41\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a1aea77 elementor-widget elementor-widget-heading\" data-id=\"a1aea77\" data-element_type=\"widget\" id=\"color\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Color Lookup Table<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f957759 e-flex e-con-boxed e-con e-parent\" data-id=\"f957759\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1160c6e elementor-widget elementor-widget-shortcode\" data-id=\"1160c6e\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-8\" class=\"tablepress tablepress-id-8 tbody-has-connected-cells\">\n<thead>\n<tr class=\"row-1\">\n\t<th colspan=\"10\" class=\"column-1\">NASA STELLA-Q2 \/ RS Module Color Lookup  Table<\/th><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\"><strong><\/strong><\/td><td class=\"column-2\"><strong>AS7265x Bands<\/strong><\/td><td class=\"column-3\"><strong>Category<\/strong><\/td><td class=\"column-4\"><strong>Example<\/strong><\/td><td class=\"column-5\"><strong>HTML value<\/strong><\/td><td class=\"column-6\"><strong>Tricolor values<\/strong><\/td><td class=\"column-7\"><strong>\u2026<\/strong><\/td><td class=\"column-8\"><strong>f = c \/ \u03bb <\/strong><\/td><td class=\"column-9\"><strong>E = h * f<\/strong><\/td><td class=\"column-10\"><strong>Energy (J) \/ (e*V\/J) = \u2028Energy in e*V<\/strong><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\"><strong>Band\u2028Designation<\/strong><\/td><td class=\"column-2\"><strong>Band middle\u2028wavelength ( \u03bb )\u2028<\/strong><\/td><td class=\"column-3\"><strong>Color<\/strong><\/td><td class=\"column-4\"><strong>Color<\/strong><\/td><td class=\"column-5\"><strong>Color<\/strong><\/td><td class=\"column-6\"><strong>Color<\/strong><\/td><td class=\"column-7\"><strong><\/strong><\/td><td class=\"column-8\"><strong>Band middle\u2028Frequency ( f )<\/strong><\/td><td class=\"column-9\"><strong>Energy per photon<\/strong><\/td><td class=\"column-10\"><strong>Energy per photon<\/strong><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\"><strong>Channel<\/strong><\/td><td class=\"column-2\"><strong>nanometers<\/strong><\/td><td class=\"column-3\"><strong>HTML Name<\/strong><\/td><td class=\"column-4\"><strong>Swatch<\/strong><\/td><td class=\"column-5\"><strong>Hexadecimal<\/strong><\/td><td class=\"column-6\"><strong>R, G, B<\/strong><\/td><td class=\"column-7\"><strong><\/strong><\/td><td class=\"column-8\"><strong>THz<\/strong><\/td><td class=\"column-9\"><strong>Joules per photon<\/strong><\/td><td class=\"column-10\"><strong>electron*Volts per photon <\/strong><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\"><strong>1<\/strong><\/td><td class=\"column-2\">410<\/td><td class=\"column-3\">Blueviolet<\/td><td class=\"column-4\">    <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #7e00db; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#7e00db<\/td><td class=\"column-6\">126, 0, 219<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">731<\/td><td class=\"column-9\">4.84E-19<\/td><td class=\"column-10\">3.0<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\"><strong>2<\/strong><\/td><td class=\"column-2\">435<\/td><td class=\"column-3\">Blue<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #2300ff; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#2300ff<\/td><td class=\"column-6\">35, 0, 255<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">689<\/td><td class=\"column-9\">4.57E-19<\/td><td class=\"column-10\">2.9<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\"><strong>3<\/strong><\/td><td class=\"column-2\">460<\/td><td class=\"column-3\">Royalblue<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #007bff; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#007bff<\/td><td class=\"column-6\">0, 123, 255<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">652<\/td><td class=\"column-9\">4.32E-19<\/td><td class=\"column-10\">2.7<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\"><strong>4<\/strong><\/td><td class=\"column-2\">485<\/td><td class=\"column-3\">Darkturquoise<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #00eaff; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#00eaff<\/td><td class=\"column-6\">0, 234, 255<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">618<\/td><td class=\"column-9\">4.10E-19<\/td><td class=\"column-10\">2.6<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\"><strong>5<\/strong><\/td><td class=\"column-2\">510<\/td><td class=\"column-3\">Lime<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #00ff00; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#00ff00<\/td><td class=\"column-6\">0, 255, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">588<\/td><td class=\"column-9\">3.89E-19<\/td><td class=\"column-10\">2.4<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\"><strong>6<\/strong><\/td><td class=\"column-2\">535<\/td><td class=\"column-3\">Chartreuse<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #70ff00; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#70ff00<\/td><td class=\"column-6\">112, 255, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">560<\/td><td class=\"column-9\">3.71E-19<\/td><td class=\"column-10\">2.3<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\"><strong>7<\/strong><\/td><td class=\"column-2\">560<\/td><td class=\"column-3\">Greenyellow<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #c3ff00; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#c3ff00<\/td><td class=\"column-6\">195, 255, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">535<\/td><td class=\"column-9\">3.55E-19<\/td><td class=\"column-10\">2.2<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-12\">\n\t<td class=\"column-1\"><strong>8<\/strong><\/td><td class=\"column-2\">585<\/td><td class=\"column-3\">Yellow<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #ffef00; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#ffef00<\/td><td class=\"column-6\">255, 239, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">512<\/td><td class=\"column-9\">3.40E-19<\/td><td class=\"column-10\">2.1<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-13\">\n\t<td class=\"column-1\"><strong>9<\/strong><\/td><td class=\"column-2\">610<\/td><td class=\"column-3\">Orange<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #ff9b00; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#ff9b00<\/td><td class=\"column-6\">255, 155, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">491<\/td><td class=\"column-9\">3.26E-19<\/td><td class=\"column-10\">2.0<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-14\">\n\t<td class=\"column-1\"><strong>10<\/strong><\/td><td class=\"column-2\">645<\/td><td class=\"column-3\">Red<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #fe0000; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#fe0000<\/td><td class=\"column-6\">254, 0, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">465<\/td><td class=\"column-9\">3.08E-19<\/td><td class=\"column-10\">1.9<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-15\">\n\t<td class=\"column-1\"><strong>11<\/strong><\/td><td class=\"column-2\">680<\/td><td class=\"column-3\">Red<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #df0000; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#df0000<\/td><td class=\"column-6\">223, 0, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">441<\/td><td class=\"column-9\">2.92E-19<\/td><td class=\"column-10\">1.8<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-16\">\n\t<td class=\"column-1\"><strong>12<\/strong><\/td><td class=\"column-2\">705<\/td><td class=\"column-3\">Red<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #c90000; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#c90000<\/td><td class=\"column-6\">201, 0, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">425<\/td><td class=\"column-9\">2.82E-19<\/td><td class=\"column-10\">1.8<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-17\">\n\t<td class=\"column-1\"><strong>13<\/strong><\/td><td class=\"column-2\">730<\/td><td class=\"column-3\">Firebrick<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #b10000; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#b10000<\/td><td class=\"column-6\">177, 0, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">411<\/td><td class=\"column-9\">2.72E-19<\/td><td class=\"column-10\">1.7<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-18\">\n\t<td class=\"column-1\"><strong>14<\/strong><\/td><td class=\"column-2\">760<\/td><td class=\"column-3\">Darkred<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #940000; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#940000<\/td><td class=\"column-6\">148, 0, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">394<\/td><td class=\"column-9\">2.61E-19<\/td><td class=\"column-10\">1.6<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-19\">\n\t<td class=\"column-1\"><strong>15<\/strong><\/td><td class=\"column-2\">810<\/td><td class=\"column-3\">Near Infrared<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #000000; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#000000<\/td><td class=\"column-6\">0, 0, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">370<\/td><td class=\"column-9\">2.45E-19<\/td><td class=\"column-10\">1.5<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-20\">\n\t<td class=\"column-1\"><strong>16<\/strong><\/td><td class=\"column-2\">860<\/td><td class=\"column-3\">Near Infrared<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #000000; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#000000<\/td><td class=\"column-6\">0, 0, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">349<\/td><td class=\"column-9\">2.31E-19<\/td><td class=\"column-10\">1.4<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-21\">\n\t<td class=\"column-1\"><strong>17<\/strong><\/td><td class=\"column-2\">900<\/td><td class=\"column-3\">Near Infrared<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #000000; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#000000<\/td><td class=\"column-6\">0, 0, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">333<\/td><td class=\"column-9\">2.21E-19<\/td><td class=\"column-10\">1.4<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-22\">\n\t<td class=\"column-1\"><strong>18<\/strong><\/td><td class=\"column-2\">940<\/td><td class=\"column-3\">Near Infrared<\/td><td class=\"column-4\">   <div style=\"display: flex; align-items: center; margin-bottom: 5px;\"><br \/>\n        <div style=\"height: 30px; width: 100px; background-color: #000000; margin-right: 15px; border-radius: 4px; border: 1px solid #ccc;\"><\/div><br \/>\n    <\/div><\/td><td class=\"column-5\">#000000<\/td><td class=\"column-6\">0, 0, 0<\/td><td class=\"column-7\"><\/td><td class=\"column-8\">319<\/td><td class=\"column-9\">2.11E-19<\/td><td class=\"column-10\">1.3<\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-23\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\"><\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td><td class=\"column-5\"><\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-24\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\"><\/td><td class=\"column-3\"><\/td><td class=\"column-4\"><\/td><td class=\"column-5\"><\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-25\">\n\t<td colspan=\"5\" class=\"column-1\">Constants and metric prefix notation<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-26\">\n\t<td class=\"column-1\"><strong>Parameter<\/strong><\/td><td class=\"column-2\"><strong>Abbreviation<\/strong><\/td><td class=\"column-3\"><strong>Units<\/strong><\/td><td class=\"column-4\"><strong>Scientific notation<\/strong><\/td><td class=\"column-5\"><strong>Decimal<\/strong><\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-27\">\n\t<td class=\"column-1\"><strong>Speed of light<\/strong><\/td><td class=\"column-2\"><strong>c<\/strong><\/td><td class=\"column-3\"><strong>m\/s<\/strong><\/td><td class=\"column-4\">3.000E+08<\/td><td class=\"column-5\">299,792,458<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-28\">\n\t<td class=\"column-1\"><strong>Planck\u2019s constant<\/strong><\/td><td class=\"column-2\"><strong>h<\/strong><\/td><td class=\"column-3\"><strong>kg*m^2\/s = J\/Hz<\/strong><\/td><td class=\"column-4\">6.626E-34<\/td><td class=\"column-5\">6.62607E-34<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-29\">\n\t<td class=\"column-1\"><strong>Joules per electron*Volt<\/strong><\/td><td class=\"column-2\"><strong>J\/eV<\/strong><\/td><td class=\"column-3\"><strong>J\/eV<\/strong><\/td><td class=\"column-4\">1.602E-19<\/td><td class=\"column-5\">1.60218E-19<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-30\">\n\t<td class=\"column-1\"><strong><\/strong><\/td><td class=\"column-2\"><strong><\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\"><\/td><td class=\"column-5\"><\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-31\">\n\t<td class=\"column-1\"><strong>one-trillionth, pico-<\/strong><\/td><td class=\"column-2\"><strong>p<\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\">1.0E-12<\/td><td class=\"column-5\">0.000000000001<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-32\">\n\t<td class=\"column-1\"><strong>one-billionth, nano-<\/strong><\/td><td class=\"column-2\"><strong>n<\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\">1.0E-09<\/td><td class=\"column-5\">0.000000001<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-33\">\n\t<td class=\"column-1\"><strong>one-millionth, micro-<\/strong><\/td><td class=\"column-2\"><strong>\u00b5<\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\">1.0E-06<\/td><td class=\"column-5\">0.000001<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-34\">\n\t<td class=\"column-1\"><strong>one-thousandth, milli<\/strong><\/td><td class=\"column-2\"><strong>m<\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\">1.0E-03<\/td><td class=\"column-5\">0.001<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-35\">\n\t<td class=\"column-1\"><strong>[units]<\/strong><\/td><td class=\"column-2\"><strong><\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\">1<\/td><td class=\"column-5\">1<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-36\">\n\t<td class=\"column-1\"><strong>thousand, kilo<\/strong><\/td><td class=\"column-2\"><strong>k<\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\">1E+03<\/td><td class=\"column-5\">1,000<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-37\">\n\t<td class=\"column-1\"><strong>million, Mega<\/strong><\/td><td class=\"column-2\"><strong>M<\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\">1E+06<\/td><td class=\"column-5\">1,000,000<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-38\">\n\t<td class=\"column-1\"><strong>billion, Giga<\/strong><\/td><td class=\"column-2\"><strong>G<\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\">1E+09<\/td><td class=\"column-5\">1,000,000,000<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<tr class=\"row-39\">\n\t<td class=\"column-1\"><strong>quadrillion, Tera<\/strong><\/td><td class=\"column-2\"><strong>T<\/strong><\/td><td class=\"column-3\"><strong><\/strong><\/td><td class=\"column-4\">1E+12<\/td><td class=\"column-5\">1,000,000,000,000<\/td><td class=\"column-6\"><\/td><td class=\"column-7\"><\/td><td class=\"column-8\"><\/td><td class=\"column-9\"><\/td><td class=\"column-10\"><\/td><td class=\"column-11\"><\/td><td class=\"column-12\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>STELLA-Q2 Start Building Build Operation Color Look Up Table The STELLA-Q2 represents the most accessible entry point into NASA&#8217;s Science and Technology Education for Land\/Life&hellip;<\/p>\n","protected":false},"author":2,"featured_media":663,"parent":888,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"class_list":["post-714","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>STELLA-Q2 - STELLA<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"STELLA-Q2 - STELLA\" \/>\n<meta property=\"og:description\" content=\"STELLA-Q2 Start Building Build Operation Color Look Up Table The STELLA-Q2 represents the most accessible entry point into NASA&#8217;s Science and Technology Education for Land\/Life&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/\" \/>\n<meta property=\"og:site_name\" content=\"STELLA\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-04T16:08:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA-Q2.png\" \/>\n\t<meta property=\"og:image:width\" content=\"899\" \/>\n\t<meta property=\"og:image:height\" content=\"899\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"21 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/\",\"name\":\"STELLA-Q2 - STELLA\",\"isPartOf\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA-Q2.png\",\"datePublished\":\"2025-05-18T18:49:42+00:00\",\"dateModified\":\"2026-03-04T16:08:15+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#primaryimage\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA-Q2.png\",\"contentUrl\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA-Q2.png\",\"width\":899,\"height\":899,\"caption\":\"STELLA-Q2 spectrometer photo\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/science.gsfc.nasa.gov\/stella\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Instruments\",\"item\":\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Spectral\",\"item\":\"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"STELLA-Q2\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#website\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/\",\"name\":\"STELLA\",\"description\":\"What do you want to measure?\",\"publisher\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/science.gsfc.nasa.gov\/stella\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#organization\",\"name\":\"STELLA\",\"alternateName\":\"Science and Technology Education for Land\/Life Assessment\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/cropped-BSTELLA_LogoOfficial-scaled-1.png\",\"contentUrl\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/cropped-BSTELLA_LogoOfficial-scaled-1.png\",\"width\":512,\"height\":512,\"caption\":\"STELLA\"},\"image\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"STELLA-Q2 - STELLA","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/","og_locale":"en_US","og_type":"article","og_title":"STELLA-Q2 - STELLA","og_description":"STELLA-Q2 Start Building Build Operation Color Look Up Table The STELLA-Q2 represents the most accessible entry point into NASA&#8217;s Science and Technology Education for Land\/Life&hellip;","og_url":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/","og_site_name":"STELLA","article_modified_time":"2026-03-04T16:08:15+00:00","og_image":[{"width":899,"height":899,"url":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA-Q2.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"21 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/","url":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/","name":"STELLA-Q2 - STELLA","isPartOf":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#website"},"primaryImageOfPage":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#primaryimage"},"image":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#primaryimage"},"thumbnailUrl":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA-Q2.png","datePublished":"2025-05-18T18:49:42+00:00","dateModified":"2026-03-04T16:08:15+00:00","breadcrumb":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#primaryimage","url":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA-Q2.png","contentUrl":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA-Q2.png","width":899,"height":899,"caption":"STELLA-Q2 spectrometer photo"},{"@type":"BreadcrumbList","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/stella-q2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/science.gsfc.nasa.gov\/stella\/"},{"@type":"ListItem","position":2,"name":"Instruments","item":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/"},{"@type":"ListItem","position":3,"name":"Spectral","item":"https:\/\/science.gsfc.nasa.gov\/stella\/instruments\/spectral\/"},{"@type":"ListItem","position":4,"name":"STELLA-Q2"}]},{"@type":"WebSite","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#website","url":"https:\/\/science.gsfc.nasa.gov\/stella\/","name":"STELLA","description":"What do you want to measure?","publisher":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/science.gsfc.nasa.gov\/stella\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#organization","name":"STELLA","alternateName":"Science and Technology Education for Land\/Life Assessment","url":"https:\/\/science.gsfc.nasa.gov\/stella\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#\/schema\/logo\/image\/","url":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/cropped-BSTELLA_LogoOfficial-scaled-1.png","contentUrl":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/cropped-BSTELLA_LogoOfficial-scaled-1.png","width":512,"height":512,"caption":"STELLA"},"image":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/714","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/comments?post=714"}],"version-history":[{"count":124,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/714\/revisions"}],"predecessor-version":[{"id":4207,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/714\/revisions\/4207"}],"up":[{"embeddable":true,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/888"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/media\/663"}],"wp:attachment":[{"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/media?parent=714"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}