7Semi SCD40 CO2, Temperature and Humidity Sensor Breakout Mini

The 7Semi SCD40 CO₂, Temperature, and Humidity Sensor Breakout Mini is a compact and efficient module designed for precise environmental monitoring. Featuring Sensirion's advanced SCD40 sensor, this breakout board utilizes innovative photoacoustic technology to deliver accurate carbon dioxide (CO₂) measurements ranging from 400 to 2000 ppm, with an impressive accuracy of ±(50 ppm + 5% of reading). In addition to CO₂ sensing, it seamlessly integrates temperature and humidity monitoring capabilities, making it an ideal solution for applications such as indoor air quality monitoring and HVAC systems. The module's small footprint and energy-efficient design ensure easy integration into various projects without compromising performance.​

Designed with user convenience in mind, the 7Semi SCD40 Sensor Breakout Mini operates efficiently within a 3.3V to 5V power supply range. It offers an I²C interface, facilitating straightforward integration with popular development platforms like Arduino, ESP32, Raspberry Pi, and STM32. Furthermore, the module supports Qwiic I²C, enabling plug-and-play functionality for rapid prototyping and development. To maintain long-term measurement stability, the sensor features both automatic and manual calibration options, ensuring consistent and reliable data over time.​

• High-Precision CO₂ Measurement: Utilizes photoacoustic sensing technology to accurately measure CO₂ concentrations from 400 to 2000 ppm with an accuracy of ±(50 ppm + 5% of reading).
• Integrated Environmental Monitoring: Combines CO₂ sensing with temperature and humidity measurements, providing a comprehensive solution for indoor air quality assessment.​
• Flexible Power Compatibility: Operates within a wide power supply range of 3.3V to 5V, ensuring compatibility with various systems.​
• User-Friendly Interface: Features an I²C interface for seamless integration with microcontrollers and development boards, simplifying communication and data retrieval.​
• Plug-and-Play Support: Compatible with Qwiic I²C connectors, allowing for quick and hassle-free setup without soldering.​
• Long-Term Stability: Offers both automatic and manual calibration options to maintain measurement accuracy over extended periods.​
• Wide Platform Compatibility: Easily integrates with popular platforms such as Arduino, ESP32, Raspberry Pi, and STM32, catering to a broad range of project requirements.​

Resources

User Guide, Sample Codes and other Documents

7Semi SCD40 DXF Files

Sensirion I2C SCD4x Arduino Library (Library for the SCD4X sensor family by Sensirion Enables you to use the SCD40 and SCD41 sensors via I2C.)