HR202 습도 센서 모듈 -3.3V/5V
(HR202 Humidity Sensor Module -3.3V/5V)
개요
- 본 제품은 HR202 습도 센서 모듈 -3.3V/5V입니다.
- HR202는 습도에 반응하는 저항식 센서입니다. 20...95%RH 측정 범위를 가지고 있습니다.
- HR202 탑재한 모듈로 디지털 출력을 가지고 있습니다.
- 보드상의 포텐셔미터를 이용하여 설정한 값 이상의 습도 검출시 디지털 출력을 HIGH로 받을 수 있습니다.
특징
- Working voltage: DC3.3-5V
- DO - digital output
- Sensitivity: adjustable
- HR202 Humidity Sensor
- Working range: 20...95%RH 0...60°C
- Supply voltage: 1.5V AC (Max sine wave)
- Working frequency: 500Hz...2kHz
- Rated power: 0.2mW (Max sine wave)
- Center value: (at25°C 1kHz 1V AC 60%RH sine wave) 31.0kΩ
- Impedance range: (at25°C 1kHz 1V AC 60%RH sine wave) 19.8...50.2kΩ
- Humidity detection Accuracy: ±5%RH
- Characteristic parameters: (at 1kHz) Unit: ohm
문서
- HR202 Datasheet.pdf
- HR202 Resistive Humidity Sensor – Half-Baked!
Connect VCC and GND, the module power indicator will light up, through the adjustment of the potentiometer, you can change the threshold of humidity detection (that is, control the humidity value). If you need to control the ambient humidity to 60%, the module will adjust the humidity in the corresponding environment. When the green light is on, the DO outputs a low level. When the humidity value is lower than the set humidity value, the output is high level, and the green light is not bright; the digital output D0 of the module can be directly connected to the single chip microcomputer, and the high and low levels are detected by the single chip microcomputer. This detects the humidity change of the environment; the small-board digital output DO can directly drive the relay module of the store, thereby forming a humidity switch.
