{"id":243028,"date":"2026-06-22T15:02:14","date_gmt":"2026-06-22T13:02:14","guid":{"rendered":"https:\/\/emariete.com\/co2-gadget-guia-sensores\/"},"modified":"2026-10-29T12:14:05","modified_gmt":"2026-10-29T11:14:05","slug":"co%e2%82%82-gadget-guide-sensors","status":"publish","type":"post","link":"https:\/\/emariete.com\/en\/co2-gadget-guia-sensores\/","title":{"rendered":"Guide to Sensors Compatible with CO2 Gadget: CO2, PM and Environmental Sensors"},"content":{"rendered":"

CO2 Gadget supports more than 20 sensors for the ESP32: CO\u2082 NDIR (Sensirion SCD30\/SCD40\/SCD41, MH-Z19, CM1106, Senseair S8), particulate matter (Sensirion SPS30, Plantower PMS5003\/PMS7003, SN-GCJA5), temperature\/humidity\/pressure (BME280, BME680, SHT31, AHT20) and VOC\/NOx (SGP40, SGP41). Here is the complete table showing compatibility, pin assignments and auto-detection.<\/p>\n\n\n\n\n\n\n

\nDocumentation is currently being updated.<\/strong> We are currently reviewing and improving all our pages. You may come across some broken links or content that is still pending. If you spot anything that isn\u2019t working properly, please help us fix it at GitHub<\/a>.\n<\/div>\n\n\n\n\n\n
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CO\u2082 sensors<\/h2>\n\n\n
Sensor<\/th>Interface<\/th>Detection<\/th><\/tr><\/thead>
Sensirion SCD30<\/td>I\u00b2C<\/td>Automatic<\/td><\/tr>
Sensirion SCD40 \/ SCD41<\/td>I\u00b2C<\/td>Automatic<\/td><\/tr>
Winsen MH-Z19 (A\/B\/C\/D\/E)<\/td>UART<\/td>Manual selection<\/td><\/tr>
Cubic CM1106 \/ CM1106SL-NS<\/td>UART<\/td>Manual selection<\/td><\/tr>
Senseair S8 LP<\/td>UART<\/td>Manual selection<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n

Particulate matter (PM) sensors<\/h2>\n\n\n
Sensor<\/th>Interface<\/th>Publish<\/th><\/tr><\/thead>
Sensirion SPS30<\/td>UART \/ I\u00b2C<\/td>PM1, PM2.5, PM4, PM10<\/td><\/tr>
Panasonic SN-GCJA5<\/td>UART \/ I\u00b2C<\/td>PM1, PM2.5, PM4, PM10<\/td><\/tr>
Plantower (PMS x003)<\/td>UART<\/td>PM1, PM2.5, PM4, PM10<\/td><\/tr>
Nova SDS011<\/td>UART<\/td>PM2.5, PM10<\/td><\/tr>
IKEA Wind Direction<\/td>UART<\/td>PM2.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n

Environmental sensors<\/h2>\n\n\n

All of these are automatically detected via I\u00b2C: BME280, BMP280, BME680 (IAQ), SHT31, AHT10, AM2320, DFRobot SEN0469 (NH\u2083), DFRobot SEN0466 (CO) and Geiger CAJOE.<\/p>\n\n\n

How to choose the sensor<\/h2>\n\n\n

I\u00b2C sensors are detected automatically \u2014 select \u00abAuto\u00bb from the menu. For UART sensors (MH-Z19, CM1106, Senseair S8), go to Settings \u2192 CO\u2082 Sensor \u2192 Sensor<\/strong> and choose the model. Remember to save your changes.<\/p>\n\n\n

Notes<\/h2>\n\n\n