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C#闹钟程序，根据你设定的时间自动报警，不过你需要最小化本程序，如果要完美的话，可以增加一个托盘处最小化的功能。带倒计时功能，用法简单，可在此基础上完善成一个真正的闹钟程序。(C# alarm clock program, depending on your set alarm time, but you need to minimize this program, if you want perfection, you can add a tray at the minimization function. With countdown function, usage is simple, can improve on this basis as a real alarm clock program.)

BK2423编程规范,内含中文资料、原理图及sdk(BK2423 programming specification, including Chinese information, schematics and SDK)

calibration touch screen for resestive touch.

说明：  利用TI公司生产的ARM款单片机MSP432实现硬件I2C，具有更加强大的性能(ARM chip microcomputer MSP432 produced by TI company is used to realize hardware I2C, which has more powerful performance)

这是基于STM32和FPGA的简易数字存储示波器(This is Simple Digital Storage Oscilloscope Based on STM32 and FPGA)

无线模块24L01的驱动和测试程序，经过验证，可以正常使用。(Wireless module 24L01 drivers and test program, after verification, can be used normally.)

transfer file using sound card

用51单片机制作温湿度传感器的代码，可以通过lcd显示(Making Code of Temperature and Humidity Sensor with 51 Single Chip Microcomputer)

RD200 Serial USB RFID Reader Protocol Manual Document Version V0150 13 July 2011 Copyright © 2009 SYRIS Technology, Corp. All rights reserved.

基于AVR单片机的MPPT程序（爬山法），非常好用！(AVR microcontroller based MPPT program (hill climbing), very easy to use!)