Description

It’s a simple and effective concept for water detection. Use a grid of electrodes, with one half attached to a very weak 1M pull-up resistor. When a water drop bridges the electrodes, the resistance falls dramatically – so much so that this Grove module can be plugged into either an analog or digital port.

Specifications

• Grove compatible interface
• Low power consumption
• 20 x 20mm (0.78 x 0.78″)
• High sensitivity

Links

• Water Sensor Wiki
• Github – Grove_Water_Sensor