This rain sensor module is an easy tool for rain detection. It can be used as a switch when raindrop falls through the raining board and also for measuring rainfall intensity. The module features, a ...

The sensor usually comes with two modules. One part detects the raindrops, the other takes a signal from the sensor and outputs it as an analog or digital signal.

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The raindrop sensor detects the presence of rain by measuring the conductivity of water droplets on its surface. The setup involves connecting the sensors to the Raspberry Pi’s GPIO pins.