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 $8.77
End Date: Saturday Jun-29-2019 17:51:46 PDT
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1 Rain detector module and sensor board kit for easy arduino interface DIY HM
1 Rain detector module and sensor board kit for easy arduino interface DIY HM $1.49
End Date: Thursday Jul-18-2019 1:04:57 PDT
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1 Rain detector module and sensor board kit for easy arduino interface DIY 2O
1 Rain detector module and sensor board kit for easy arduino interface DIY 2O $1.49
End Date: Thursday Jun-27-2019 21:14:04 PDT
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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 $2.33
End Date: Saturday Jul-6-2019 18:07:13 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 $6.82
End Date: Friday Jul-12-2019 22:34:36 PDT
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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 $2.33
End Date: Monday Jul-8-2019 20:02:09 PDT
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Rain Water Level Sensor Module Detection DC 3V 5V Liquid Arduino Depth Board
Rain Water Level Sensor Module Detection DC 3V 5V Liquid Arduino Depth Board $5.45
End Date: Friday Jul-12-2019 20:13:45 PDT
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Arduino Rain Sensor Module Rain Drop Detector Relay Control Module 12V
Arduino Rain Sensor Module Rain Drop Detector Relay Control Module 12V $4.67
End Date: Thursday Jul-18-2019 8:21:07 PDT
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Arduino Rain Sensor Module Rain Drop Detector Relay Control Module 12V DIY
Arduino Rain Sensor Module Rain Drop Detector Relay Control Module 12V DIY $4.72
End Date: Saturday Jun-22-2019 4:30:36 PDT
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Sensor Rain Sensor Arduino Detector Module HD Rd Snow Leak Water Weather
Sensor Rain Sensor Arduino Detector Module HD Rd Snow Leak Water Weather $4.61
End Date: Friday Jun-21-2019 4:30:25 PDT
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