Rain Detector / Rain Sensor

Rain-sensorSome models come with a basic analogue to digital converter that's adjustable.  It requires a 3 volt and ground connection, and has a signal line which triggers when wet.

I wired the signal connector directly to a GPIO.  It may also run at 5volts but didn't want to risk the pi.

2pcs Rain Sensor Detector Module Raindrop Detection Shield Arduino Compatible US
2pcs Rain Sensor Detector Module Raindrop Detection Shield Arduino Compatible US $8.57
End Date: Wednesday Jul-8-2020 17:51:46 PDT
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Rain Water Level Sensor Module Detection Raindrop Humidity Arduino Depth Board
Rain Water Level Sensor Module Detection Raindrop Humidity Arduino Depth Board $6.90
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Rain Raindrops Snow Sensor Module Detector Pour Suspension Water Wetness Arduino
Rain Raindrops Snow Sensor Module Detector Pour Suspension Water Wetness Arduino $5.46
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CB7 Snow Raindrop Sensor Detector Module Rain Humidity Module for Arduino New
CB7 Snow Raindrop Sensor Detector Module Rain Humidity Module for Arduino New $3.49
End Date: Tuesday Jul-14-2020 19:04:42 PDT
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