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电子爱好者们经常希望测试自己的音频设备如声卡、碟机、功放、音箱等的性能指标，却苦于没有价格高昂的专业测试设备而无从下手，设计制作时也无法进行必要的测试指导。有些CD碟提供了测试信号，如著名的“雨果发烧碟（一）”、“My Disk”等，《无线电》也曾推出音频测试CD。但CD信号的精度有限，而且没有操作系统的配合，测量、记录和分析都很不方便。(Electronic fans often want to test their audio devices such as sound cards, CD, amplifier, speakers and other performance indicators, but have no specialized test equipment without the high price the start, can not carry out the necessary tests to guide the design of production. Some CD discs provide a test signal, such as the famous Hugo Audiophile CD (a) , My Disk and so on, Radio has launched an audio test CD. CD signal but the accuracy is limited, and there is no tie, measurement, recording and analysis of the operating system is very inconvenient.)

基于51单片机的lcd12864液晶全屏画图程序，很有用！已通过测试！(Based on MCU 51 lcd12864 LCD full screen paint program, very useful! Has been tested!)

一个基于8051单片机如AT89c51等的红外传感器接收的小程序，提供单片机学习之用(A 8051-based infrared sensors such as AT89c51 received a small program used to provide single chip learning)

结合A7125或两个A7325可进行2.4G数据的传送。使用的是SPI通讯。这个模块同时具有发送和接收的功能。(Or a combination of both A7325 A7125 2.4G data can be transmitted. Using SPI communication. This module also has the function of transmitting and receiving.)

电力载波 具备显示 控制 采集 用于毕业设计 工厂测试(Power carrier with display control acquisition for graduation design factory test)

基于SSD1289控制器的液晶驱动程序，现在已经用在了产品上 保证好用(Based SSD1289 LCD controller driver now with a guarantee on the product easy to use)

说明：  超声波测距电路图 以及超声波传感器驱动电路(Ultrasound)

EASi Line Assembly Technology HeartRate Give-away C Source Code

实现LLC的闭环控制程序，低频情况，高输入电压(Closed loop control of LLC)

LED显示屏开发，医院体检中心推送消息到LED(LED develop)