超声波测距,包括有pcb原理图，用c写的程序，还有详细的说明

图形界面，轻点鼠标就可生成96系列汇编程序或C程序-graphical interface, with the mouse can generate 96 series assembler or C Program

ADS7841的驱动，调试成功！SPCE061A的内核，可只用3个IO口-ADS7841 driver, debugging success! SPCE061A the core, can be only 3 IO I

质量教高得一段程序代码，资料的详细功能、包含内容说明都有。-A high quality education program code, the information detailed features, including both the content description.

DDS芯片ad9854的单片机（C8051F020)控制及其外围原理图和PCB图-DDS chip AD9854 microcontroller (C8051F020) and its peripheral control schematic and PCB diagram

基于PROTEL、DXP绘制的凌阳 SPCE061A的PCB电路图。-Based on PROTEL, DXP drawn Sunplus SPCE061A the PCB circuit.

JUPITER演示程序，lcd显示图片。-JUPITER demo program, lcd display picture.

使用国产CH341A芯片实现USB转串口，完全兼容AVR JTAGICE，可以自动升级。 支持芯片: ATmega16(L), ATmega162(L), ATmega169(L or V), ATmega32(L), ATmega323(L), ATmega64(L), ATmega128(L). 原理图还附加了RS232接口，可以方便用户自主选择串口或USB下载程序。 还附加有可自动升级的HEX文件-The use of domestically produced CH341A chip USB to serial port, fully compatible with the AVR JTAGICE, can be automatically upgraded. Support chips: ATmega16 (L), ATmega162 (L), ATmega169 (L or V), ATmega32 (L), ATmega323 (L), ATmega64 (L), ATmega128 (L). Schematics also added a RS232 interface, can easily users to choose the serial or USB download. Additional there is also automatically upgrade the HEX file

51单片机驱动打印机的C程序-51 Microprocessor printers C Program

AVR单片机实现AD采集PWM播放声音功能-AVR MCU AD Acquisition PWM voice broadcast functions