Arduino Rain Sensor Module Guide and Tutorial via Henry's Bench

Another great component to add to your weather station. Use it to track weather data, automate sprinkler systems and more! — Douglas

This module allows you measure moisture via analog output pins and it provides a digital output when a threshold of moisture is exceeded.
The module is based on the LM393 op amp. 

It includes the electronics module and a printed circuit board that “collects” the rain drops.  As rain drops are collected on the circuit board, they create paths of parallel resistance that are measured via the op amp.

Read Arduino Rain Sensor Module Guide and Tutorial via Henry's Bench

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