自己用C语言编的一个密码锁，由于刚学单片机，写得功能比较简单，...

c51单片机与ＰＣ间的串口 通信驱动程序-C51 MCU and PC serial communication between the driver

主要针对pic单片机的片内资源应用，通用性比较强-Targeted pic microcontroller chip resources in the application of relatively strong versatility

USB(即Universal Serial Bus)是一种通用串行总线。随着技术水平的提高，计算机的广泛应用，人们对串行通信提出了更高的要求。开发一种兼容低速和高速的技术，从而为广大用户提供一种可共享的。可扩容的。使用方便的串行总线成为众多厂商的共同目标。为了实现整个计算机系统中总线的一致性，USB已发布了一种成为通用计算机串行技术规范，简称为USB。-USB (or Universal Serial Bus) is a Universal Serial Bus. With the skill levels improve, the wider use of computers, serial communication of a higher demand. The development of a compatible low-speed and high-speed technology, so as to provide a vast number of users can be shared. May be the expansion. Easy-to-use Serial Bus has become the common goal of many manufacturers. In order to realize the entire computer system bus consistency, USB has released a general-purpose computer serial become technical specifications, referred to as USB.

FlashFlex51微控制器

nRF24L01_EVB开发板试验头文件。-development board nRF24L01_EVB test header file.

SD卡驱动 SD_CARD_TIMEOUT 当一个SD卡的操作超出时限，将导致返回错误和该标记被置位 SD_CARD_EXIST 当卡槽内插入了合适的卡体，不管是什么卡，都会使该位被设置； SD_CARD_WRITE_PROTECT 当卡体的写保护开关被 LOCK 时，则该位被设置； SD_CARD_READY 当卡槽内的卡被正确识别，并可以随时访问时，则该位被设置； SD_CARD_DOOR_CLOSE 当卡槽的门（产品外壳上的挡板开关）关闭时，则该位被设置； SD_CARD_IS_SD 当卡槽内插入的是 SD 卡时，则该位被设置。 SD_CARD_IS_MMC 当卡槽内插入的是 MMC 卡时，则该位被设置； 注意：不要使用 0x80，免得和整数作逻辑运算时被误为负数。-err

采用两片凌阳61实现的建简易智能车程序，包含寻迹，金属探测，语音播报等功能-The use of two 61 Sunplus built realize the mini-mental procedures, including tracing, metal detector, voice broadcast and other functions

自己设计的基于51单片机的简易电子词典，方便阅读，便于修改-Of their own design based on 51 single-chip simple electronic dictionaries, user-friendly, easy to modify

[原创]PIC单片机完成格雷(Golay)编码的源码.-[original] PIC completed Gray (Golay) encoding the source.

LCD1602底层驱动,C语言编写 ，