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说明：  使用CC2530读取SHT20传感器的温湿度数据并发送或串口打印(This program get temperature and humidity data by SHT20 and send data though cc2530 with wireless or usart.)

FDC2214驱动基于stm32f103ve(Fdc2214 driver FDC2214 driver code based on stm32f103ve)

空调压缩机变频控制算法，与直流无刷永磁电机相关，与节能相关。(PWM control algorithm of air-conditioner s condenser )

pads 布等长线 (cloth pads and other long-term)

John Catsoulis编写的Designing Embedded Hardware 。介绍了汇编语言，SPI,I2C,串口，usb,网口等硬件电路设计。模拟电路设计，AVR单片机原理(John Catsoulis prepared Designing Embedded Hardware. Introduction of assembly language, SPI, I2C, serial, usb, network hardware such as circuit design of the mouth. Analog circuit design, AVR Singlechip Principle)

avr AT mega128 定时器3的外部中断(avr AT mega128 TIMER 3 INIT)

说明：  此代码为在proteus中仿真代码，实现功能：利用液晶显示时间，通过按键调节时分秒。(This code is a simulation code in proteus. It realizes the function of adjusting the time and seconds by keystrokes using liquid crystal display time.)

RC522 SPI接口的51单片机程序例程(RC522 SPI)

模数转换器AD0809例程，通过该例程可掌握AD0809的基本使用方法(AD0809 ADC routines, the routines can be mastered through the basics of using the AD0809)

基于51单片机的LCD1602的开发程序（C）(LCD1602 51 MCU-based development process)