SCD40/SCD41 CO2 Sensor Module with I2C Interface

✅ Add gas readings to code. The I2C interface gives a compatible controller a digital path to the measurement.

✅ See temperature and humidity too. Integrated temperature and humidity sensing adds context beside the CO2 figure on your display.

✅ Pick your sensor version. Choose SCD40 or SCD41 and follow that device's own documentation and software.

✅ Start with a simple display. You can log or automate later, once the basic connection to the controller works.

A digital CO2 sensor for your own build

A CO2 sensor module built around the SCD40 or SCD41, with a digital I2C connection for a compatible controller. It suits makers adding gas readings to a display, logger or automation project. The module is a development component rather than a finished alarm.

Technical details

• - Sensor choices: SCD40 or SCD41
• - Interface: digital I2C
• - Connection labels: VDD, GND, SCL and SDA
• - Function: CO2 sensing with integrated temperature/humidity capability
• - Package: selected sensor module
• - Controller and display: separate

Choose the sensor and bring CO2 readings into your project.