avr单片机，M16.三个按键，中间长按可以打开和关闭灯的闪烁控制。当打开后，当按左边键时，LED灯闪烁一次；当按中间键时，LED灯闪烁两次；当按右键时，LED灯闪烁三次。-avr microcontroller, M16 three keys, in the middle, long press to open and close the lights flashing control. When opened, press the left button, LED light flashes

在STM32单片机上实现长按4S按键进入待机模式，并且可以用RTC报警唤醒单片机-In the STM32 microcontroller to achieve long press 4S button to enter standby mode, and you can wake up with a single-chip RTC alarm

按键按下、弹起、长按、组合算法,中断延时消抖.-Button is pressed, bounce, long press, the combination of algorithms, interrupt latency jitter elimination.