microcontroller programming keyboard MakeKey

本代码基于凌阳SPCE061A芯片，实现单段录音功能，并可重复播放所录语音。-Based on this code SPCE061A Sunplus chip, to achieve single-stage sound recording function, and repeat playback recorded voice.

使用国产CH341A芯片实现USB转串口，完全兼容AVR JTAGICE，可以自动升级。 支持芯片: ATmega16(L), ATmega162(L), ATmega169(L or V), ATmega32(L), ATmega323(L), ATmega64(L), ATmega128(L). 原理图还附加了RS232接口，可以方便用户自主选择串口或USB下载程序。 还附加有可自动升级的HEX文件-The use of domestically produced CH341A chip USB to serial port, fully compatible with the AVR JTAGICE, can be automatically upgraded. Support chips: ATmega16 (L), ATmega162 (L), ATmega169 (L or V), ATmega32 (L), ATmega323 (L), ATmega64 (L), ATmega128 (L). Schematics also added a RS232 interface, can easily users to choose the serial or USB download. Additional there is also automatically upgrade the HEX file

该源代码为单片机的公交ic卡课程设计源代码，需要课程设计报告的，再找我。-The source code for the MCU bus ic cards curriculum design source code, the need for curriculum design report, I find.

数字电压表设计，单片机AT89S51与ADC0809设计，能够测量0－5V之间的直流电压值，四位数码显示。完整的C语言代码和电路图-Digital voltage meter design, microcontroller AT89S51 with ADC0809 design, capable of measuring between 0-5V DC voltage value, four digital display. Complete C language code and circuit diagram

C8051F320和89c52的串口通讯程序，c语言编写-C8051F320 and 89C52 Serial communication procedures, c language

在LED上显示中文汉字的源代码，采用汇编语言，对于入门者帮助很大。-LED display Chinese characters in the source code, using assembly language is very helpful for beginners.

非接触式ic卡读写程序,希望对大家有帮助-Non-contact ic card reader program, and they hope to have everyone help

mifare 读卡器weigant输出有kei uvision打开！-MIFARE reader weigant output is Kei uvision open!

阀位控制器源程序 利用PIC16F873A-valve controller source use PIC16F873A

整个控制过程中最关键的部分是与PC和终端的通讯过程。有关两方面通讯的详细的协议参见PC和终端的文档-51