HR202 Humidity Sensor Module HR202 Humidity Sensitive Resistor Humidity Detection Switch ModuleItem NO.: HR202

HR202 Humidity Sensor Module

Module Usage:

Humidity detection, humidity sensor, environmental humidity detection

Module Features:

1. Adopting high-quality HR202 humidity sensor;

2. Comparator output, clean signal, good waveform, strong driving ability, exceeding 15mA.

3. Equipped with potentiometer to adjust the temperature detection threshold

4. Working voltage 3.3V-5V

5. Output form: DO digital switch output (0 and 1) and AO analog voltage output

6. Equipped with fixed bolt holes for easy installation

7. Small PCB size: 3.2cm x 1.4cm

8. Using a wide voltage LM393 comparator

Module Usage Instructions:

1. The humidity sensor module is very sensitive to environmental humidity and is generally used to detect the humidity of the surrounding environment;

2. By adjusting the potentiometer, you can change the humidity detection threshold (that is, control the humidity value). If you need to control the ambient humidity to 60%, the module will output a high level when the corresponding ambient humidity is adjusted to its green light, and the DO will output a high level when the humidity value is lower than this setting, but the green light will not be on;

3. The DO output terminal can be directly connected to a microcontroller, which detects high and low levels to detect changes in environmental humidity;

4. The DO output terminal can directly drive the local relay module, which can form a humidity switch to control the relevant equipment to work in a suitable environment;

5. The analog output AO of the small board can be connected to the AD module of our store, and through AD conversion, higher values of environmental humidity can be obtained;