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说明：  由于不满意语音芯片的复制性差，于是自己做了一个语言模块，用STC12LE2052单片机的PWM功能播放声音，从Wave文件中提取的声音数据通过串口从计算机下载，存储在串行Flash芯片SST25VF016B中，可进行单段播放和循环播放，单个模块的制作成本应该在30元以下，可以播8K8位的声音256秒。(Not satisfied with the voice chip, as a result of poor copy, so do a language module, with the STC' s 2052 single-chip PWM function to play a sound, from the Wave files to extract the audio data downloaded from the computer through the serial port, is stored in the Serial Flash chip, can play single player and recycling, the production costs of a single module should be below 30, you can broadcast the voice of 8K8-bit 256 seconds.)

说明：  keil c usb数据采集系统 at89c5131的固件源代码 及生成软件 支持3个端点 0.1.2(keil at89c5131)

模拟PWM信号控制小灯，控制二极管占空比(Analog PWM signal control light)

实现STM32F103单片机作为主机与其他单片机进行通信(STM32F103 microcontroller as a host to communicate with other microcontrollers)

无线传感器网络 tinyos 睡眠协议代码(Wireless sensor networks tinyos cluster head selection code)

虚拟示波器软件破解版，通过串口可以实现示波器的功能。附有C代码的头函数和原函数。请不要删除在目录下的license.dat文件. 财力允许的情况下，请支持正版！(Software cracked version of virtual oscilloscope, oscilloscope functions can be realized through the serial port. With c code H file and Source file.)

单片机红外解码1602液晶驱动显示，适合初学者学习红外解码(Microcontroller infrared decoder 1602 LCD driver, suitable for beginners to learn the infrared decoding )

AD778924位AD转换程序，提供了常用的功能模块，经过实际项目开发，可以应用(AD7789 24bit change)

带字库的12864仿真软件学习带电路图和仿真软件。(12864 with a font with a circuit simulation software and simulation software to learn.)

说明：  TM4C123G编程的Modbus辅助网络(Modbus slave using tm4c123g)