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: Friday Mar-1-2019 16:51:46 PST
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1 Rain detector module and sensor board kit for easy arduino interface DIY DG
1 Rain detector module and sensor board kit for easy arduino interface DIY DG $1.49
End Date: Tuesday Mar-5-2019 0:39:52 PST
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1 Rain detector module and sensor board kit for easy arduino interface DIY HW
1 Rain detector module and sensor board kit for easy arduino interface DIY HW $1.49
End Date: Tuesday Feb-26-2019 16:54:51 PST
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Raindrop Detection Sensor Snow Rain Detector Weather Module For Arduino
Raindrop Detection Sensor Snow Rain Detector Weather Module For Arduino $2.68
End Date: Thursday Mar-21-2019 3:39:36 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: Wednesday Feb-27-2019 20:14:04 PST
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Rain Water Level Sensor Depth Detection Module For Arduino Liquid Detector Drop
Rain Water Level Sensor Depth Detection Module For Arduino Liquid Detector Drop $1.31
End Date: Friday Mar-22-2019 7:15:39 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 $7.10
End Date: Thursday Mar-14-2019 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 $2.49
End Date: Friday Mar-8-2019 17:07:13 PST
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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 $5.67
End Date: Thursday Mar-14-2019 20:13:45 PDT
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Arduino Rain Sensor Module Rain Drop Detector Relay Control Module 12V New
Arduino Rain Sensor Module Rain Drop Detector Relay Control Module 12V New $4.53
End Date: Monday Mar-11-2019 18:00:47 PDT
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