rmtrc

PWM输出实验，适用于AVR单片机，通过调试，可行。(PWM output experiment, for AVR microcontroller, through debugging and feasible.)

基于RS485水位检测系统，运用芯片max485，具有一定的扩展性，程序可以借鉴和使用，具有工业通用性(RS485-based water level detection system, using chips max485, has some scalability, the program can learn and use, with industrial versatility)

波形发生器 三角波 矩形波 正弦波 基于multisim设计(Waveform generator sine wave square wave triangle wave Design based on multisim)

Multisim的应用说明、元件库说明以及自建元件的方法说明(Multisim application notes, library, notes, and a description of self-built components)

用51实现超声波测距，在1602上显示，测量精准，并且有详细的注释(With 51 to achieve ultrasonic ranging, displayed on 1602, accurate measurement, and detailed notes)

PWM调光,通过PWM（脉宽调制）调节LED的亮度(PWM dimming to adjust the brightness of the LED by PWM (Pulse Width Modulation))

I2C的oled加键盘显示的程序。基于STM32F103 (I2C The program oled display and keyboard. Based STM32F103)

uc1698驱动程序， 51单片机编写 ，并口和spi接口都有 ，常规字符显示都有(Uc1698 driver hhhhhhhhhhhhhhh)

PID调节恒压恒流输出 智能充电器 STM32 详细算法(PID constant current output intelligent charger)

普通PC键盘作为输入设备与单片机串行连接，通过单片机解码PS2键盘，七段数码管显示按下的键值，是把键盘作为输入扩展的不错的例程，源码采用KEIL C编写。(keyboard input)