AVR 单片机 1602模块，本人实物测试通过，绝对好用，易于移植，吐血奉献-AVR single-chip module 1602, I passed the physical test, the absolute ease of use, easy to transplant, blood sacrifice

PID控制PWM脉冲调制，基于AVR单片机实现-PID control

1602的驱动包，适合avr mega16的单片机，稍微改动也可用于其它环境！-1602 driver package for avr mega16 microcontroller, a little change can also be used in other environments!