Item Name: HR202 Electronic 3 Wire System Detection Humidity Sensor Module Board Kit Newly. Smart TV Box Android Quad Core HDMI 1080P Wifi Streaming Media Player UK
HR202 Smart Electronic Hygrometer 3 Wire System Detection Humidity Sensor Module Board DIY Kit
Feature:
1. Using high quality HR202 humidity sensor.
2. Comparator output, with clean signal, good waveform, strong driving ability, more than 15 mA.
3. With potentiometer regulating temperature detection threshold.
4. Fixed bolt hole for easy installation.
5. Using a Wide Voltage LM393 Comparator.
6. Applications: Humidity Detection, Humidity Sensor, Environmental Humidity Detection.
Specification:
Working voltage 3.3V-5V
Output Form: Digital Switch Output (0 and 1)
PCB Size of Small Plate: 32mm*14mm*5mm/1.25*0.55*0.19''
Packing weight: 2g
Operation Manual:
1. Humidity sensor module is very sensitive to environmental humidity, which is generally used to detect the humidity of the surrounding environment.
2. By adjusting the potentiometer, the threshold value of humidity detection can be changed (i.e. control humidity value). If the humidity of the environment needs to be controlled at 60%, the module will turn on its green light at the corresponding humidity, while DO will output a high level. When the humidity value is lower than the set humidity value, it will output a high level and the green light will not turn on.
3. DO output terminal can be directly connected with the single-chip computer, through the single-chip computer to detect high and low levels, thereby detecting environmental humidity changes.
4. The DO output terminal can directly drive the relay module, thus forming a humidity switch to control the relevant equipment to work in the appropriate environment.
Wiring instructions(3-wire system):
1. VCC External Connecting to 3.3-5V
2. GND External Connecting to GND
3. DO, Small Board Digital Output Interface (0 and 1)
Note:
Please allow 1-3cm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.
