IM-simulation

说明：  模块SIM7600CE的测试程序，TCP连接数据发送及接受(Test Program of Module SIM7600CE)

详细介绍了利用PADS 9.5 实现原理图与PCB设计的方法和技巧。配合大量示意图，介绍了印制电路板设计流程和常用电路模块的PCB处理方法(The method and technique of using PADS 9.5 to realize schematic diagram and PCB design are introduced in detail. With a large number of schematic diagrams, the design process of printed circuit boards and the PCB processing methods of common circuit modules are introduced)

说明：  本程序用作pid控制，不过基于AVR硬件乘除法，移植性不高，本人是作者。(the procedures for pid control, but based on the hardware AVR calculation method, transplantation is not high, is the author.)

说明：  基于silicon labs的51单片机ADC采集反电动势实现BLDC换相的应用(basic on 51 MCU using ADC sample BEMF for BLDC commutation.)

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.)

使用1602显示的38khz红外解码程序(1602 shows 38khz using infrared decoder)

点阵LED、数码管、独立LED和无源蜂鸣器的驱动模块(Dot matrix LED, digital control, independence and passive buzzer LED driver module)

stm32控制NRF905程序，现场运行验证2年。(stm32 NRF905 control procedures, on-site verification for 2 years running.)

使用51单片机控制NE555脉冲发生器，实现所需功能。(The NE555 pulse generator is controlled by 51 single chip computer to achieve the required functions.)

dm8203的网口原理图，很有用的，适合初学者使用(dm8203 for net port sch，very important)