Ultrasonic

光伏微网系统中蓄电池的充放电控制器的研究。(Photovoltaic micro-grid system battery charge and discharge controller.)

基于MSP430的飞控源码，及其相关功能的实现。(The realization of flight control code and related functions based on MSP430)

基于LM3S2948芯片的一个火车运行沙盘的控制程序，程序经过严格验证过应用在一个发布会上。速度用PWM控制，红外IO采集到站状态，自己写的一个验证的滤波程序。(Based on a train running sand table LM3S2948 chip control program, application procedures rigorously validated in a release. Speed with PWM control, infrared IO collection station status, himself wrote a validation of the filtering process.)

4*4键盘课件，包含电路图，教学方法、教学目标(4* 4 keyboard courseware, including circuit)

Atmel公司推出了最新的加密芯片AT88SC0104C~25616C系列，专门用于电子产品加密。该类芯片具有协议认证和数据密文传送等功能。(The included specifications contain Atmel Confidential information and are distributed only under NDA. This specification is not to be copied or distributed beyond the assigned individual/corporation without the written consent of Atmel.)

nrf2401功能使用文档，对学习者很有帮助。(zidongfanyi chu wenti le ,zhineng xie pingyin le.)

在STM32上实现片内DAC模块的模数转换功能(Realization of analog-to-digital conversion)

Kinetis_K60底层驱动开发包PWM部分开发，有助于此开发板的底层开发(Kinetis_K60 underlying driver development kit PWM part of the development, contribute to the bottom of this development board development)

使用到蜂鸣器、Lcd1602、ZLG7289和串口，键盘实现加法器，控制LCD1602和蜂鸣器音乐播放。借助串口调试助手，可以用电脑发送字符，替代键盘，完成上述三种功能。(To use the buzzer, Lcd1602, ZLG7289 and serial port, a keyboard adder, and a buzzer control LCD1602 music player. With serial debugging assistant, a computer can send characters, instead of the keyboard, the above three functions.)

数字电子时钟是一种使用数字电路技术实现时钟、分钟和秒钟定时的设备。 它在其他电子时钟中具有更高的准确性和主观性。数字钟包含扩展功能和基本功能。其中，基本功能部分：以数字形式准确定时，显示时、分、秒的功能; 扩展功能部分： 日期显示、闹钟、温度显示。(A digital electronic clock is a device that uses digital circuit technology to achieve clock, minute, and second timing. It has higher accuracy and subjectivity in other electronic clocks. The digital clock has two parts, basic functions and extended functions. Among them, the basic function part: accurate timing in digital form, display hours, minutes, seconds function; extended function part: date display, alarm clock, temperature display.)