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: Thursday Nov-1-2018 17:51:46 PDT
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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: Monday Oct-29-2018 17:54:51 PDT
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Raindrop Detection Sensor Snow Rain Detector Weather Module For Arduino
Raindrop Detection Sensor Snow Rain Detector Weather Module For Arduino $2.54
End Date: Monday Oct-22-2018 3:39:36 PDT
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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: Monday Nov-5-2018 0:39:52 PST
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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: Sunday Oct-21-2018 20:20:08 PDT
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New One Rain Drip Detector Module Shield Sensor Cable For AVR ARM Arduino
New One Rain Drip Detector Module Shield  Sensor Cable For AVR ARM Arduino $1.99
End Date: Wednesday Nov-14-2018 20:54:11 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: Tuesday Oct-23-2018 7:15:39 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 $2.45
End Date: Thursday Nov-8-2018 17:07:13 PST
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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: Sunday Nov-11-2018 17:00:47 PST
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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 $4.74
End Date: Sunday Oct-28-2018 9:21:04 PDT
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