A NEW Crowtail sensor called crowtail-water sensor, it has a specific crowtail interface that compatible with crowtail base board. The water sensor detects water by having a series of exposed traces connected to ground and interlaced between the grounded traces are the sensor traces. The sensor traces have a weak pull-up resistor of 1 MΩ. The resistor will pull the sensor trace value high until a drop of water shorts the sensor trace to the grounded trace. With the digital I/O pins of Crowduino, you can detect the amount of water induced contact between the grounded and sensor traces.

Features

• Crowtail compatible interface
• Low power consumption
• High sensitivity
• Dimensions(mm):40.0(L)x20.0(W)x6.8(H)

Applications

• Rainfall detecting
• Liquid leakage
• Tank overflow detector

Parts list

• Crowtail-water sensor x 1

Links

• Wiki link