学习ATmega16单片机的好资料，全面的测试原代码包括ADC，IIC，LED，PWM，RS232，Time0 等，附上电路原理图-Learning ATmega16 microcontroller good information, comprehensive testing of the original code, including ADC, IIC, LED, PWM, RS232, Time0, etc., attached to the circuit diagram

Manejo de PWM via rs232 con compilador C de CCS

PIC16F874典型应用,多路数字量输入/输出，2路PWM输出用于直流电机调速，模拟量A/D采样，所有信号的控制通过RS232与上位机通讯-PIC16F874 Typical applications, multi-channel digital input/output, 2-way PWM output for DC motor speed, analog A/D sampling, all signal control through RS232 and host computer co