Description

Product introductionCarbon dioxide is a key indicator of indoor air quality, damaging human cognitive ability and happiness. SCD40 is the next generation of micro carbon dioxide sensor of Sensirion. SCD40 has high precision and high cost performance. The module leads out the power supply and communication pins with a 2.54mm spacing pin interface. On chip temperature and humidity compensation realizes humidity and temperature measurement through built-in temperature and humidity sensor. SCD40 can realize intelligent regulation of indoor ventilation system according to carbon dioxide concentration. Indoor air quality helps to maintain a healthy and efficient environment under low carbon dioxide concentration for a period of time.featuresReference accuracy, specified range 400-2000 ppmSupply voltage range: 2.4 – 5.5 VHigh accuracy: ± (40 ppm + 5%)Digital I2C interfaceIntegrated temperature and humidity sensorLow power operation to < 0.4 Ma average @ 5 V, 1 meas/ 5 minutesInterface definition:1. GND: negative input port of power supply2. VDD: positive input port of power supply3. SCL: I2C clock port4. SDA: I2C data portBoard size: 13.4 × 21.6mm