If you need to tell your Arduino to change the state of a pin (for example to turn the lights on), it requires the user to press a physical button or use a sensor. Relying on a human finger press or similar is
315MHz Simple RF Link Kit CAT Catalogue Description 3: This kit is used for one way wireless communication at a frequency of 315MHz and includes a transmitter module and a receiver module For modules: Arduino, Raspberry Pi, BeagleBone, Edison, LaunchPad, Mbed, Galiel 搜索查看资料 113020000[更...