一些PS2键盘资料，介绍了PS2协议以及和51单片机AVR的接口程序。-Some PS2 keyboard information about the PS2 and 51 agreements and the interface program AVR microcontroller.

ATMEGA16 AVR单片机，矩阵键盘实验测试，程序驱动键盘-GCC AVR Studio development environment under routine

AVR mega16 使用的矩阵键盘和1602液晶程序代码，带Proteus仿真。 按一键后在LCD1602 屏幕上显示按键号。-Code of Matrix keyboard and LCD1602 for AVR mega16, with Proteus simulation. After press the key, display key’s number on the LCD1602 screen .