Water Detection Sensor Module electret mic The 2- or 4-quadrant multiplying

The 2- or 4-quadrant multiplying makes these devices a sound choice for many microprocessor-controlled gain-setting and signal-control applications

Arduino A5 (SCL) ---> HMC5883L SCL

With the help of the touch sensor

Induction angle: <100 degrees cone angle

Water Detection Sensor Module electret mic The 2- or 4-quadrant multiplyingWater detection sensor is used to detect water leak, water level or rains. This is obtained by having a series of parallel wires exposed traces. The sensor traces have a weak pull up resistor of 1 M. The resistor will pull the sensor trace value high until a drop of water shorts the sensor trace to the grounded trace. The analog signal output can be read directly to arduino Specifications Operating voltage: 5V Operating current: less than 20mA Sensor