{"id":243029,"date":"2026-06-22T15:02:15","date_gmt":"2026-06-22T13:02:15","guid":{"rendered":"https:\/\/emariete.com\/co2-gadget-guia-ble\/"},"modified":"2026-07-07T09:10:26","modified_gmt":"2026-07-07T07:10:26","slug":"co2-gadget-guide-ble","status":"publish","type":"post","link":"https:\/\/emariete.com\/en\/co2-gadget-guia-ble\/","title":{"rendered":"Gadget\u2019s BLE CO\u2082 Guide: MyAmbiance, BTHome and Real-Time Data"},"content":{"rendered":"<p class=\"wp-block-paragraph\">The CO2 Gadget\u2019s Bluetooth Low Energy feature allows you to view real-time measurements via the Sensirion MyAmbiance app (iOS and Android) and configure your monitor without needing Wi-Fi. In this guide, you\u2019ll learn how to pair the device, what data is displayed in the app, and how to set up Wi-Fi via MyAmbiance.<\/p>\n\n\n\n\n\n\n<div style=\"background:#fff8dc;border:1px solid #e6c300;border-radius:8px;padding:12px 16px;margin:12px 0;font-size:14px;line-height:1.5;color:#333\">\n<strong>Documentation is currently being updated.<\/strong> We are currently reviewing and improving all our pages. You may come across a broken link or some content that hasn\u2019t been finalised yet. If you spot anything that isn\u2019t quite right, please help us fix it at <a href=\"https:\/\/github.com\/melkati\/CO2-Gadget\/issues\" style=\"color:#0066cc\">GitHub<\/a>.\n<\/div>\n\n\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h2 class=\"wp-block-heading\">What you can do with BLE<\/h2>\n\n\n<ul class=\"wp-block-list\">\n<li>View CO\u2082, temperature and humidity in real time<\/li>\n<li>Download historical data to your mobile phone<\/li>\n<li>Set up the meter\u2019s Wi-Fi<\/li>\n<li>Calibrate the SCD4x sensor<\/li>\n<li>Distinguish between different meters by Device ID<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\">How to use BLE on the CO2 Gadget<\/h2>\n\n\n<p class=\"wp-block-paragraph\">BLE is coming <strong>enabled by default<\/strong>. All you have to do is install the app <strong>Sensirion MyAmbiance<\/strong> (free on iOS and Android), open it and search for your device. The monitor will appear automatically. It\u2019s that simple to have a high-quality CO\u2082 monitor up and running on your mobile.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Data history<\/h2>\n\n\n<p class=\"wp-block-paragraph\">The CO2 Gadget stores readings in a configurable circular buffer (up to 1,440 samples). You can download this history to your mobile phone via the MyAmbiance app. The sampling interval for the history is configured via the meter\u2019s menu.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Wi-Fi configuration via BLE<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Using the MyAmbiance app, you can set up your meter\u2019s SSID and Wi-Fi password without needing to use any buttons or a screen. It\u2019s the easiest way to get your meter up and running.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Important notes<\/h2>\n\n\n<ul class=\"wp-block-list\">\n<li>BLE works independently of Wi-Fi<\/li>\n<li>You can have BLE and Wi-Fi active at the same time<\/li>\n<li>The Bluetooth Device ID allows you to distinguish between different meters in the app<\/li>\n<li><strong>CO2 Gadget offers a BLE experience superior to any similarly priced commercial meter<\/strong><\/li>\n<\/ul>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<h3 class=\"wp-block-heading\"> BTHome for Home Assistant<\/h3>\n\n\n<p class=\"wp-block-paragraph\">In addition to the MyAmbiance service, CO\u2082 Gadget supports <strong>BTHome v2<\/strong>, an open BLE standard that Home Assistant detects automatically \u2014 no MQTT, no Wi-Fi, no configuration required. You can enable BTHome via the Web UI (Preferences \u2192 Connectivity) and select which sensors you want to broadcast.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Read the <a href=\"\/en\/co2-gadget-guide-bthome\/\">BTHome Guide<\/a> for further details.<\/p>\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n<p class=\"wp-block-paragraph\"><em>Did you find this helpful? Share this article. Have a look at the <a href=\"https:\/\/emariete.com\/en\/co2-gadget-guide-menu\/\">Menu Guide<\/a>. Any questions? Ask on the <a href=\"https:\/\/t.me\/emariete_chat\">Telegram group<\/a> or open a <a href=\"https:\/\/github.com\/melkati\/CO2-Gadget\/issues\">issue on GitHub<\/a>.<\/em><\/p>\n<div class=\"essb_break_scroll\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Gadget\u2019s BLE CO\u2082 Guide. Connect your high-quality CO\u2082 monitor to the Sensirion MyAmbiance app: real-time data, downloadable history, Wi-Fi setup via Bluetooth and calibration.<\/p>","protected":false},"author":1,"featured_media":243271,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[13,16],"tags":[24,71,27],"class_list":["post-243029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-co2-gadget","category-medidor-co2","tag-co2-gadget","tag-co2-gadget-guias","tag-esp32"],"modified_by":null,"uagb_featured_image_src":{"full":["https:\/\/emariete.com\/wp-content\/uploads\/2026\/07\/Guia_BLE_on_blue_banner_202607050739.jpeg",1376,768,false],"thumbnail":["https:\/\/emariete.com\/wp-content\/uploads\/2026\/07\/Guia_BLE_on_blue_banner_202607050739-150x150.jpeg",150,150,true],"medium":["https:\/\/emariete.com\/wp-content\/uploads\/2026\/07\/Guia_BLE_on_blue_banner_202607050739-300x167.jpeg",300,167,true],"medium_large":["https:\/\/emariete.com\/wp-content\/uploads\/2026\/07\/Guia_BLE_on_blue_banner_202607050739-768x429.jpeg",768,429,true],"large":["https:\/\/emariete.com\/wp-content\/uploads\/2026\/07\/Guia_BLE_on_blue_banner_202607050739-1024x572.jpeg",1024,572,true],"1536x1536":["https:\/\/emariete.com\/wp-content\/uploads\/2026\/07\/Guia_BLE_on_blue_banner_202607050739.jpeg",1376,768,false],"2048x2048":["https:\/\/emariete.com\/wp-content\/uploads\/2026\/07\/Guia_BLE_on_blue_banner_202607050739.jpeg",1376,768,false],"trp-custom-language-flag":["https:\/\/emariete.com\/wp-content\/uploads\/2026\/07\/Guia_BLE_on_blue_banner_202607050739-18x10.jpeg",18,10,true]},"uagb_author_info":{"display_name":"Mariete","author_link":"https:\/\/emariete.com\/en\/author\/admin_xlyz052h\/"},"uagb_comment_info":0,"uagb_excerpt":"Gu\u00eda BLE de CO2 Gadget. Conecta tu medidor de CO\u2082 de alta calidad con la app Sensirion MyAmbiance: datos en tiempo real, hist\u00f3rico descargable, configuraci\u00f3n WiFi por Bluetooth y calibraci\u00f3n.","_links":{"self":[{"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/posts\/243029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/comments?post=243029"}],"version-history":[{"count":13,"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/posts\/243029\/revisions"}],"predecessor-version":[{"id":243283,"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/posts\/243029\/revisions\/243283"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/media\/243271"}],"wp:attachment":[{"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/media?parent=243029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/categories?post=243029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/emariete.com\/en\/wp-json\/wp\/v2\/tags?post=243029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}