采用4位数据线的1602液晶驱动c语言程序 PWM利用Timer1的OC1A脚输出占空比可调的信号-The use of four data lines 1602 LCD driver c language program using Timer1 in PWM output duty cycle adjustable foot OC1A signal

STC12C5A系列单片机PWM测试程序。用一参数设置脉冲宽度，数越大，低脉冲越大。已通过。-STC12C5A MCU PWM test program. Parameter settings with a pulse width, the greater the number, the greater the low pulse. Has passed.

直流发电机的调速程序，使用的是STC12C5A的单片机，采用PWM技术来调节他的速度，简单便捷。-DC generator speed control program use is microcontroller of STC12C5A, and PWM technology to adjust his speed, simple and convenient.