Raindrop sensor module
The comparator output, the signal is clean, waveform, driving ability over 15mA
Distribution bit to adjust the sensitivity
Operating voltage 3.3V-5V
The output in the form: digital switching outputs (0 and 1) and analog AO voltage output
A fixed bolt hole for easy installation
Power indicator, the output signal LED indicator
TTL-level output, TTL output valid signal is low. Driving capability 100MA so can directly drive relays, buzzer, a small fan, and so on.
Sensitivity can be adjusted via a potentiometer
LED lights up when there is no rain output is high, raindrop up, the output ground level, LED light
Raindrops and control panels are separate, easy to wire leads
A large area of rain board, more conducive to detect rain
Board with positioning holes to facilitate installation
The wide voltage LM393 comparator
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