ITEM NAME:Infrared IR wireless remote control set for Arduino incl. CR2025 button cel S2Y5 Infrared IR wireless remote control set for Arduino incl. CR2025 button cel S2Y5 Infrared IR Wireless Remote Control Set for Arduino including CR2025 button cell If you wish to control your Arduino application via remote control, you can use this set consisting of a small infrared remote control (with control cross, "OK", "0-9" "*" and "#" buttons), plug-in module, extra send diode and 3 plug-in connections (socket on socket) control your application comfortably and also on distance! The remote has a total of 17 keys and is operated with a CR2025 button cell. The plug-in module is the infrared receiver and receives the signal from the remote control, then the small LED on it red. In addition, you only use one digital pin for the many input keys. The extra IR transmitter can be used, for example, on an Arduino microcontroller to transmit infrared signals. Package Contents: 1 x remote control with a module 1 x cable Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..CR2025 button cel S2Y5. In addition, you only use one digital pin for the many input keys. The remote has a total of 17 keys and is operated with a CR2025 button cell.