이산화탄소/온습도 센서 -STC31, SHT3
(CO₂ Sensor - STC31 (Qwiic))
개요
- 본 제품은 이산화탄소/온습도 센서 -STC31, SHT3 입니다.
- 100%까지의 이산화탄소 측정 범위를 가진 센서를 찾는다면 이 제품이 적격인 제품입니다.
- STC31은 열 전도성 센서로 두개의 이산화탄소 측정범위( 0 to 25 vol%; and 0 to 100 vol%)를 가지고 있습니다.
- 모듈에 SHT3 온습도 센서를 별도로 장착하고 있어 온습도에 보정된 이산화탄소 측정 결과를 가질 수 있게 합니다.
- 센시리온사의 CMOSens 센서 기술로 훌륭한 성능을 보여주는 제품입니다.
- 패드 점퍼를 이용하여 I2C 주소 설정이 가능합니다.
특징
- Sensirion STC31 CO2 Sensor
- Thermal conductivity sensor provides calibrated gas concentration and temperature output
- Calibrated for: CO2 in N2; and CO2 in air
- Measurement ranges: 0 to 25 vol%; 0 to 100 vol%
- Accuracy: 0.5 vol% + 3% measured value; 1 vol% + 3% measured value
- Repeatability: 0.2 vol%
- Temperature measurement range: -20 °C to +85 °C
- Concentration and temperature resolution: 16-bit
- Start-up time: 14 ms
- I2C address (configurable): 0x29 (default), 0x2A, 0x2B, 0x2C
- Supply Voltage: 2.7VMin, 3.3VTyp, 5.5VMax
- Note: Qwiic bus operates at 3.3VMax
- Sensirion SHTC3 Humidity and Temperature Sensor
- Allows the STC31 to compensate for humidity and temperature
- Typical accuracy: ±2 %RH and ±0.2 °C
- Specified humidity range (extended): 0 to 100 %RH
- Specified temperature range: -40 °C to +125 °C
- I2C address (non-configurable): 0x70
- Supply Voltage: 1.62VMin, 3.3VTyp, 3.6VMax
- Note: Qwiic bus operates at 3.3VMax
- Dual Qwiic connectors
- Power LED (configurable)
- I2C pull-ups (configurable)
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The SHTC3's I2C address is non-configurable; you will need a Qwiic Mux if you want to connect multiple sensors to the same bus.
As usual, our board includes a power LED, a pair of Qwiic connectors, I2C breakout pads and pull-up resistors. You can disable the LED and pull-ups if you need to by cutting the I2C jumpers on the back of the board.
Our Arduino library contains example sketches for the Arduino IDE to get you up and running quickly. It can be downloaded through the Arduino Library manager: search for 'SparkFun STC3x' or it can be found in the Documents tab above.