1PCS Humidity Sensor Module HR202 Humidity Module Humidity Detection A3GS
1. can detect the humidity of the surrounding environment 2. adjustable sensitivity (shown in blue digital potentiometer adjustment) 3. Operating voltage 3.3V-5V 4. Analog output form a. voltage output b. digital switching outputs (0 and 1) 5. with fixed bolt hole for easy installation 6. small plates PCB size: 3cm*1.6cm 7. Power LED (red) and the digital switch output indicator 8. using LM393 comparator chip, stable module interface specification (4-wire) 1. VCC external 3.3V-5V 2. GND External GND 3. DO small plate switch digital output interfaces (0 and 1) 4. AO analog output interfaces small plates module for use 1. humidity resistance module most sensitive to environmental humidity is generally used to detect ambient humidity. 2. modules at ambient humidity reach the set threshold, D.
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