Keyes Brick 2Pcs Magic Light Cup Sensor Modules(pad hole) with Pin Header Digital Signal

Description This sensor is a sensor compatible with Arduino to interact with it The principle is to use PWM principle of dimming the brightness of the two sensors changes The ball switch provides a digital signal to trigger the PWM adjustment Through the design of the program we can see the effect similar to the upside down of two cups filled with light The sensor comes with 2 positioning holes which is convenient for you to fix the sensor to other equipment Specifications Working voltage DC 3 3 5VInterface 4PIN interfaceInput Output signal digital signalSize 34 22 17mmPackage Included 2 x Magic Light Cup Sensor the other items are not includes