GPIO

说明：  Jlink mini 下载器电路图，有兴趣的可以参考下(Jlink mini downloader circuit diagram, those who are interested can refer to)

AVR单片机开发板 mege16 数码管显示程序(AVR microcontroller development board mege16 digital tube display program)

DS18B20温度1602显示，51单片机使用，驱动代码，可用(1602 DS18B20 temperature display, 51 single use, driver code, available)

RFID RC522 sample code.

数字单线温度传感器DS18b20程序代码(dS18b20 code)

只能小车寻线与避障加寻光51单片机代码，就是全国电子设计竞赛1999年的E题啦。(Only the car line code 51 single-chip microcomputer and obstacle avoidance for light)

实现智能数字显示仪表。要求8位数码管显示（4位显示测量值，4位显示设定值），4输入按钮（功能选择、数码管选择、数字增加、数字减少），可设定上下限报警（蜂鸣器报警）。K型热电偶（镍铬-镍硅），测温范围为0℃~1000℃。采用比例-积分控制、并用晶闸管脉宽调制驱动1000W电加热器（电源电压为AC220V）。(Intelligent digital display instrument. Asked 8-bit digital display (4 shows measured values, four display settings), 4 input buttons (feature selection, the digital control options, the number increased, the number is reduced), upper and lower limits can be set to alarm (buzzer alarm ). K-type thermocouple (Ni-Cr and Ni- Si), temperature range is 0 ℃ ~ 1000 ℃. Proportional- integral control, and using thyristor PWM drive 1000W electric heater (power supply voltage is AC220V).)

1602LCD液晶秒表，实现的C语言源程序(1602LCD LCD stopwatch to achieve the C language source code)

通过鼠标可以控制图象的宣战和显示通过鼠标可以控制图象的宣战和显示(macheng)

LPC210X 定时器与串口通讯驱动源码(LPC210X timers and serial communication driver source code)