This is a frugal CO₂ sensor so most of the parts can be interchanged with similar ones. A detailed Bill of Materials with the exact components used in this version of the sensor is provided as ...

Code to quickly recalibrate a SCD-30 sensor using Arduino. If sensor is not returning values around 400-450ppm when outside, use this code to reset it. Also disables automatic self-calibration because ...

The air quality affects human health and energy. High levels of carbon dioxide in the air can cause serious ailments of a human body. Due to the increased attention to this issue, it is necessary to ...

Rain Drop Sensor acts as a switch when raindrops fall to the sensor, other than that with slight tweaks in the code it can also measure the intensity of the rainfall. We Interfaced the Rain sensor ...

Two wireless CO2 sensor units based on Sensirion SCD40 sensor with M5Stack UNIT CO2 I2C sensor, and TeHyBug miniature CO2 sensor device.

In this project my aim is to develope CO2 level supevisory tool with STM32WB, SPG40 CO2 sensor and widespread Tuya smarthome framework and smartphone app. Tuya compatible zigbee gateways are made by ...