Gravity: Conductivity Sensor Switch - DFRobot

The module that is able to determine whether the object has an electric conductivity. The maximum detection value is 10 MΩ. It is able to recognize the different conductors, e.g. metal, wires, coils, and human body, fruits, plants, etc. After electric conductivity detection, the module changes its output status. The kit includes a cable adapted to Gravity DFRobot IO Expansion Shield.

The product is compatible with Arduino

Sample code and detailed information can be found inthe user guide.

The module works with any microcontroller with digital inputs, includingArduino. To read data, simply connect the power supply and output pin to any input of the microcontroller, and read its status.

Example of connecting the sensor withArduino.

• Supply voltage: from 3.3 V to 5 V
• Output signal: digital
• 3-pin Gravity interface
• The maximum determined resistance: 10 MΩ

• Board sizes: 30 x 22 mm
• The length of the connectors - crocodiles: 45 cm
• Weight: 22 g

• The main module
• Gravity connection cable 
• Crocodile cables 

• The website of the manufacturer DFRobot SEN0223
• User manual WikiDoc
• Diagram of the module