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c8051f单片机上集成ucos，usbhid的应用，以及usbhid的测试工具及vc源码。(c8051f MCU integrates ucos, usbhid applications, and usbhid test tools and vc source.)

use MDD file system v1.0.0 and the MCU of PIC24FJ64GA002 to operate files with SD card! very simple example, pleasure read the Read Me.txt file!

zlg 关于rc522 rc523 pn512的底层代码和14443A 和14443B 只要掌握了这些代码就可以开发对应的M1卡和CPU卡读写程序(ZLG about rc522 rc523 pn512 underlying code and 14443 a and 14443 b as long as to master the code can develop corresponding M1 card and CPU card read and write procedures)

/*EEPROM24C02,程序将对存储器进行读和写，因此涉及到键盘程序，比较复杂，耐心学，*/#include <reg51.h>#include <intrins.h>#define W24C020xA0//存储器的写地址 #define R24C02 0xA1 //存储器的读地址 #define MSB 0x80 //8位二进制最高位置1 #define LSB 0x01 //8位二进制最低位置1 (/* EEPROM24C02, program will read and write memory, it involves the keyboard program, more complex, patient study,* /# include <reg51.h># Include <intrins.h># Define W24C020xA0// write the memory address# define R24C02 0xA1// read memory address# define MSB 0x80// 8 bit binary highest position 1# define LSB 0x01// 8 bit binary lowest 1)

基于MPC5646CF0MLU1单片机的LED测试程序(LED Test Program Based on MPC5646CF0MLU1 Single Chip Microcomputer)

说明：  温度烟雾防灾系统，51单片机作为控制器，有DS18B20，MQ-2(Temperature smoke disaster prevention, 51 single chip microcomputer)

Windows系统搭建esp8266的本地Mqtt服务器，局域网点亮一盏LED灯(Windows system builds the local Mqtt server of esp8266, and the local area network lights up an LED lamp.)

51单片机4路AD采集模块，附件带源码.原理图等(51 MCU 4-channel AD acquisition module, accessory with source code, schematic diagram, etc.)

ATMEGA48 头文件 适用于 ICCAVR7.0 有些版本没有ATMEGA48的头文件(ATMEGA48 )

说明：  通过单片机AT89C2051采用DS1820上的温度,并通过串口发出(The temperature on DS1820 is adopted by AT89C2051 single chip computer and sent out through serial port.)