Moisture sensor, rain sensor at affordable cost - Xbotics
The raindrop sensor module is used for rain detection. It is also for measuring rainfall intensity. The module includes a rain board and a control board that are separate for more convenience. It has a power indicator LED and an adjustable sensitivity though a potentiometer. The module is based on the LM393 op amp.
Rain Sensor or detector is simple and easy to use the module for rain detector. The module works as a switch when rain falls on the module and also measures rain intensity. This rain module can measure beyond humidity detector, means it can measure what humidity cannot. The complete module comes with rain board, control board, and a connecting wire.