KY-036 Metal Touch Sensor

KY-036 Metal Touch Sensor The KY-036 Touch Sensor Module utilizes a floating lead on a Darlington transistor to detect a touch. There are 2 LEDs on-board. A red LED lights when power is applied. A green or red LED lights when a touch is detected. It's a simple module that can be easily integrated into a circuit, it can be connected to an MCU (microcontroller unit) using just three pins: VCC, GND and Signal. The signal pin goes high when the sensor is touched and goes low when the touch is removed. It can be used in a variety of applications where touch sensing is required such as buttons, touchscreens, and other human-machine interfaces.