HR202 Humidity Sensor Module

The HR202 humidity sensor module is sensitive to environmental humidity, generally used to detect ambient humidity. By adjusting the potentiometer, you can change the threshold of humidity detection ( i.e. Control humidity value). If the ambient humidity needs to be controlled by 60%, the module will when the corresponding environmental humidity is adjusted to its green light, DO will output high level, lower than this when setting the humidity value, the output is high and the green light is off.

DO output can be directly connected to the microcontroller through the microcontroller to detect high and low, thereby detecting the humidity changes in the environment.

The DO output terminal can directly drive our relay module, which can form a humidity switch to control related equipment to work in the right environment.

This Module is Using high-quality HR202 humidity sensor. The comparator output signal is clean, good waveform, driving ability, more than 15mA

Features:

1. Adjustable Sensitivity, External GND.
2. Detect Ambient Humidity.
3. Provided with Fixed Bolt Hole, Convenient to Install.
4. Power Indicator Light & Digital Output Indication Lamp.
5. Using LM393 Chip for Stable Work.
6. DO Small Digital Outputs Interface (0 & 1).
7. Adjustable trigger level from preset.
8. LEDs indicating output and power.

Specification:

1. Operating Voltage: 3.3 - 5V DC
2. Operating Current: 15mA
3. Humidity Range: 20 - 95% RH
4. Digital Output: 0 and 1