PWM

RS485主机从机通信，程序分模块变成，注释详细(RS485 master slave communication, procedures, sub-modules into a, more notes)

辉芒单片机例程，刚刚起步的单片机，以前做EEPROM的(MCU routine, just started the microcontroller, before doing EEPROM)

基于单片机的出租车计价器的课程设计 含文档 仿真图(The taxi meter course design based on single chip microcomputer)

51单片机中的开发板上的LED跑马灯程序，很简单但是很实用适合新手/。(The program of LED horse-running lamp on the development board of 51 single-chip computer is very simple but practical for beginners/ novices.)

stm32 使用硬件SPI读写FLASH AT45DB161D(stm32 FLASH AT45DB161D)

说明：  使用定时器TIM3输出四路的SPWM波，其中一二路、三四路波形一致，一二路与三四路波形相差180°(Timer TIM3 is used to output four SPWM waveforms, of which one, two, three and four waveforms are identical, and one, two and three and four waveforms are 180 degrees different.)

cc2430无线射频模块（基于ZigBee2006）的2004协议栈的演示程序和使用说明，刚开始学习或接触ZigBee的朋友可以借此来学习。(cc2430 RF module (based on ZigBee2006) of the 2004 protocol stack demo program and instructions for use, just learning or exposure to ZigBee' s friends can learn.)

51单片机c语言教程全集 学习的同学可以好好学习一下(51 SCM c language tutorial Complete Works of learning students can learn)

使用数码管和AT24C02实现： 1、数码管从0显示到99，溢出后从0循环显示，时间间隔为一秒。 2、显示到某个数时突然关闭电源，AT24C02将保存当前的数字。 3、重新启动后数码管会接着上次的数继续显示(Using digital tube and AT24C02 implementation: 1, the digital tube displays from 0 to 99. After overflow, it displays from 0 cycles, with a time interval of one second. 2, display a number of time to turn off the power suddenly, AT24C02 will save the current number. 3, after reboot, the number will continue to display.)

称取食物热量，可以预设单位重量热量值。通过扫描压力传感器信号，实时显示重量及热量(a 51 MCU process weight food calorie)