简易抢答器，数码管显示和LED灯同时显示，同时伴有蜂鸣器响声。-Easy Responder, digital display and LED lights also shows, accompanied by a buzzer sound.

基于单片机的DS18B20的温度报警系统的设计-MCU DS18B20 temperature alarm system design

sim32单片机的io口编程学习例程编译调试通过，是单片机的合理利用例程-sim32 microcontroller io port programming learning routines compiled debugging through the rational use of the microcontroller routines