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A simple servlet program that transforms the arabic numbers into romans and the romans from arabic

关于单片机设计的电子钟的程序及设计，提供最新的代码。(On single-chip design process of electronic bell and design, with the latest code.)

STM32F107 音乐播放器、模拟输入混音、音量控制、静音控制。 MDK编译测试成功 (STM32F107 music player+ analog input mixer+ volume control+ mute control MDK version)

用89S52作的远程序电话拨号系统，能完成收发功能，利用的芯片是MT8880，里面有源程序以及生成的hex文件，开发环境是keil(89S52 far with the procedures for telephone dial-up systems, to complete the send and receive functions, the use of the chip is MT8880, which has source code and hex file generated by the development environment is keil)

二极管钳位三电平变频器中点电压平衡相关问题研究(Diode clamped three level inverter voltage balance related problem research)

基于51单片机的proteus仿真系统，其中包括AD转换模块的应用(51 single-chip microcomputer-based simulation system of proteus, including the application of AD converter module)

涵盖温控调速散热器所有源代码！哈尔滨工程大学；经典实用。(All source code to cover the thermostat governor radiator! Harbin Engineering University classic and practical.)

MPU6050是我们常用的六轴空间位置处理芯片，次文档使用卡尔曼滤波的方式使数据更加的准确(MPU6050 is our commonly used six-axis spatial position processing chip. Kalman filter is used in sub-documents to make the data more accurate.)

说明：  测温矩阵传感器MLX90640的stm32移植版本，基于HAL库的硬件IIC驱动文件。(The STM32 porting version of mlx90640 is based on the hardware IIC driver file of Hal library.)

学内燃机的都懂，不用多介绍了，kiva-3v做模拟仿真必备。(Understand about learning the engine, do not introduce more, kiva-3v necessary to do simulation)