The small blue potentiometer on the board can be used to adjust the rain level at which the digital output changes. A small relay or buzzer can also be added to one of the outputs for extra versatility in functional design.
Features:
- Adjustable sensitivity
- LED indicator
- TTL level output can drive 100mA, enough for a small relay or buzzer.
Required Supply Voltage:5.0 V
Duinotech Arduino Compatible Rain Sensor Module
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$8.25
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