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Humidity detection, humidity sensors, environmental humidity detection
The use of high-quality HR202 humidity sensor;
The comparator output, the signal clean, good waveform, driving ability, more than 15mA.
With the potentiometer to adjust the temperature detection threshold
The working voltage of 3.3V-5V
The output form: DO digital switch output (0 and 1) and AO analog voltage output
With a fixed bolt hole, easy to install
Small board PCB size: 3.2cm x 1.4cm
The use of wide voltage LM393 comparator