Introduction - If you have any usage issues, please Google them yourself
Microcontroller a key pluripotent support click, double click, click long press, double press, the circuit structure: P1 mouth then 8 LED (active low enable) P3.3 port access keyboard (occupied interrupt) program features: can be used to achieve six kinds of one-touch function, all key functions takes less than one second. 1 second click, a double-click inside lights lit one second, two lights lit button three times within one second, three lights lit within one second long press , 4 lights on for 1 sec click lengthened by five lights lit within one second secondary click lengthened by six bright lights program to work, eight lights flashing (2HZ)