IC卡水表的源程序，MCU用MSP430单片机＋LCD液晶屏

基于usb开发板的hid键盘,使用者可根据此代码编写自己的HID设备-development board based on usb hid the keyboard, users can be prepared according to this code of HID equipment

AVR_Meag8单片机控制三基色的LED，C源代码，包含电路原理路。-AVR_Meag8 single-chip control of trichromatic LED, C source code, including the principle of the road circuit.

用C语言实现51单片机的2402开机次数3位计数程序-51 using C language to achieve the 2402 single-chip boot program counts the number of three

功能： 1、作为下位机采集8255数据并将此数据通过通讯送出， 2、采集数据为BCD，先转换成二进制，处理后再转换成BCD 3、通讯采用方式3，多机通讯，上位机发地址时TB8=1，其他TB8=0 下位机SM2=1，RB8=1时产生中断后使SM2=0收发数据，结束后SM2=1-Features: 1, as under the 8255-bit machine data collection and communications sent through this data, 2, collected data for the BCD, first converted into binary, and then converted to deal with BCD 3, communication using methods 3, multi-machine communication, PC-fat address TB8 = 1, other TB8 = 0 under the digital machine SM2 = 1, RB8 = 1 when the failure to make SM2 = 0 to send and receive data, after the end of SM2 = 1

ic卡读写方式和内容，程序的模块化可用，比较方便，还可以-IC card reader formats and contents, procedures can be modular, more convenient, but also

crc校验源码，可供C51程序员参考，我目前测试用的32位CRC程序-crc check source code, programmer"s reference for C51, I am currently testing 32-bit CRC procedures

单片机串口中断程序和键盘程序-SCM interrupt procedures and procedures keyboard

1212汉字库.rar-1212 Store. Rar

develop develop develop develop develop develop -develop develop develop develop develop develop develop develop develop develop develop develop

用此源代码，可以用于继电器测试仪的开发，通过继电器测试仪可以测试继电器的状态等-Use this source code, can be used to relay tester development, through the relay tester can test the status of relays, etc.