门禁系统读卡器源码 有助于了解其工作原理 帮助开发单片机

51单片机读写SD列子程序 可以学习51单片机如何读写SD卡-51 Singlechip Liezi SD procedures to read and write can learn how to read and write 51 Singlechip SD Card

金鹏LCd的液晶串口显示程序，是金鹏网站上自带的历程，下载下来接可以用的直接。-Jinpeng LCd LCD serial display program is Jinpeng own course Web site, access can be downloaded directly.

at89c51单片机

倒车雷达源程序代码，包括车载万年历，车内外温度显示，距离显示，声光报警。-Reversing radar source code, including car calendar, car inside and outside temperature display, distance display, sound and light alarm.

51单片机的122×32点阵液晶底层驱动程序-51 SCM 122 × 32 dot matrix LCD driver bottom

利用单片机普通I/0口进行模拟IIC通信，从而实现24c02读写操作-The use of ordinary single-chip I/0 I mock IIC communication, reading and writing operation in order to realize 24C02

这是一个芯片资料,可以为单片机初学者提供一个认识芯片的文档.对学习单片机的同学有帮助-This is a chip data, we can provide an understanding of single-chip chip beginners document. MCU learning students have to help

A/D转换器ADC0832驱动程序，该程序属于A/D的基础程序，可以调用该函数来实现A/D转换-A/D converter ADC0832-driven program, which belongs to A/D based program, you can call this function to achieve the A/D converter

这是一个关于串口通信的程序，是用C 语言和汇编编写的，适合大多同学。-This is a serial communication about the procedure is written in C and assembly language for most students.

用C8051F040实现I2C通信的范例。可实现E2PROM的存取。-I2C communication with the C8051F040 implementation examples. Can be realized E2PROM access.