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

• SCD40 Datasheet
• User Guide, Sample Codes and other Documents
• 7Semi SCD40 Breakout 3D Step File
• Sensirion I2C SCD4x Arduino Library (Library for the SCD4X sensor family by Sensirion Enables you to use the SCD40 and SCD41 sensors via I2C.)