数控调频发射器，很好用的哦，我写了好久的，不过大家要先有必要的电子元件哦。...

可编程微波炉系统, at89c52单片机 汇编-programmable microwave systems, at89c52 MCU Series

利用Atmel89C51、按键、蜂鸣器设计能播放十首歌曲的音乐播放系统，LCD能显示播放歌曲名-Use Atmel89C51, button, buzzer designed to play 10 songs music player system, LCD can display broadcast the song name

Proteus的数码管仿真电路，希望对大家有点用，入门级的。-Proteus simulation of the digital control circuit, in the hope that we are a bit used, entry-level.

The ADC0803 family is a series of three CMOS 8-bit successive approximation A/D converters using a resistive ladder and capacitive array together with an auto-zero comparator. These converters are designed to operate with microprocessor-controlled buses using a minimum of external circuitry. The 3-State output data lines can be connected directly to the data bus.

MSP430单片机FLASH系列的PCB和原理图库，很好用的啊！-MSP430 Flash series and the PCB Principle Gallery, the good ah!

DIY多功能转换器（已调试通过）。 本原理图可以实现USB/RS232、USB/RS422、USB/RS485接口转换功能。只需安装USB驱动程序即可实现USB转串口的功能，简单方便。另外只需对电路图稍作改动即可实现RS232/RS422或RS232/RS485转换功能。 心动了吗？不如赶快行动，拥有属于自己的五合一的接口转换器吧！-DIY Multi-function Converter (has debug through). The schematic diagram can be achieved USB/RS232, USB/RS422, USB/RS485 interface conversion. Simply install the USB driver can achieve the function of USB to serial, easy and convenient. Also just to make a minor amendment to the circuit can be realized RS232/RS422 or RS232/RS485 conversion. Echocardiography it? Action as soon as possible, with their own-one interface converter吧!

单片机实现和PS2键盘的接口，C51语言编写，记不清什么时候网上找的了。-MCU and PS2 keyboard interface, C51 language, could not remember what time of the find online.

STC89C58RD +宏芯（driver）驱动TOPPTFT_LCD-STC89C58RD+ Macro-core (driver) driver TOPPTFT_LCD

C8051F04x单片机对Flash的操作。-C8051F04x Singlechip of Flash operation.