Do you need a roof that suddenly open during rain? or do you need to detect rain fall and keep your cloth in? If it’s yes, then you should see how this rain sensor module works. The sensor plate has 2 PCB tracks which routed parallel around it. These tracks are not connected, but when water/rain drop to the surface of plate and changes the resistance between the tracks because water/rain is conductive, this further changes the resistance between tracks and lower down the resistance. More water/rain touches the plate and the resistance become lower.
|Servo1 : VCC||Maker UNO: 5V|
|Servo1 : GND||Maker UNO: GND|
|Servo1 : A0||Maker UNO: Pin 11|
|Servo2 : VCC||Maker UNO: 5V|
|Servo2 : GND||Maker UNO: GND|
|Servo2 : A0||Maker UNO: Pin 10|
|Rain Sensor : VCC||Maker UNO: 5V|
|Rain Sensor : GND||Maker UNO: GND|
|Rain Sensor : A0||Maker UNO: Pin A0|
|Rain Sensor : DO||Maker UNO: NC|
This is the sample code used for this tutorial. Try it!