PWM-ULN2003A

SIM900开发板配套STM32 GPRS代码(SIM900 STM32 GPRS driver)

IC(PIC16F690)驱动程序C语言代码，为需要帮助的人提供方便，互相帮助！(IC (PIC16F690) driver C language code, for the people who need help to facilitate and help each other!)

stm32F410X PCA例程，Stm32F410x很好的学习资料(Stm32F410X PCA routines, stm32F410X very good learning material )

用于TI 3S9B96开发板 实现功率转换的功能(Development board for the TI 3S9B96 achieve power conversion function)

模拟电表软件，主要模拟电表数据、遥测数据、参数修改、报文显示、可以模拟2个电表（可以自行修改增加），最终通过RS232转485输出。。。(Analog meter software, the main analog meter data, telemetry data, parameter modification, message displays, you can simulate two meters (which can be modified to increase its own), the final output through the RS232 switch 485. . .)

51单片机片上串口控制GPRS模块。用KEIL 软件调试成功。(51 MCU on-chip serial port to control the GPRS module. KEIL software debugging success.)

A， 单发单收，在发送状态，能够连续发送从0到99的数字； B， 单发单收，在接收状态，能够接收数据，并在数码管上正确地显示出来； C， 单发多收，在AB完成的基础上，接上多个接收设备，能够正确发送和接收 这是从站2的代码(A, single-input single in the sending state, capable of continuously transmitting a number from 0 to 99 B, single-input single in the receiving state, capable of receiving data, and display correctly in the digital tube out C, single overcharged, on the basis of AB completed, connect multiple receiving devices, capable of sending and receiving the correct code from the station which is 2)

步进电机驱动，四相五线步进电机控制的测试程序，C51编写，读者可稍加修给即可应用(Stepper motor driver)

本系统以单片机AT89C52为核心,以数模转换器DAC0832实现方波、正弦波、三角波、锯齿波波形的输出，实现信号发生器的简易功能。(This system with single chip microcomputer AT89C52 as the core, with digital to analog converter DAC0832 achieve square wave, sine wave, triangle wave, sawtooth wave form output, realize the simple function of the signal generator.)

简单的音乐盒，可以播放音乐，并且有花样灯进行闪烁，是个不错的小礼物。(music box )