AVR 4* 4 keyboard to communicate through USART

电动车上面的控制器原理图，NEC主控芯片，现在最流行的方案，提供给大家-Electric vehicle controller schematic diagram above, NEC host chip, is now the most popular programs available to everyone

u盘固件源代码，很不容易找到的，分享一下-u disk firmware source code, is not easy to find and share

KEIL的接口函数，对于打算做仿真器的朋友可能有帮助-KEIL interface function, for the intention to make the simulator might be helpful to Friend

用单片机的C语言实现的开机时间显示上次关机时间（存在看门狗里），还有显示当前时间。可供单片机程序开发人员参考。-MCU C language shows the uptime shutdown last time (there watchdog Lane), and show the current time. SCM procedures for the development of reference.

ICL7135 4.5位ADC 中文资料-ICL7135 4.5 bit ADC Chinese information

C8051F120 ISP下载程序，通过串口可以更新程序，实现硬件的自动升级，更新程序大小为62KB-C8051F120 ISP download programs through the serial port can update procedure, automatic hardware upgrades, updates size is 62KB

rs485单线程数据通讯程序，KEY键触发能使单片机之间能够通讯-rs485 data communications single-threaded process, KEY key trigger enable communication between the single-chip

80C196单片机由于低格低、处理能力强，在信号分析、数据采集等很多领域得到了广泛应用-80C196 microcontroller due to the low grid is low, processing capability, and in signal analysis, data acquisition has been widely used in many areas

通过红外对管实现无线通信，下位机可以通过数据采集转换，通过红外向上位机发送并显示-Through infrared to control the realization of wireless communications, next-bit machine can be converted through the data acquisition through infrared upward-bit machine to send and display

这个是我写的一个液晶显示器的驱动程序，很简单，但是之得一看，对初学单片机的人来说还是有点价值的-I wrote this is a liquid crystal display drivers, it is simple, but it