基于avr单片机系统硬盘mp3设计，硬盘为fat32文件系统

1602液晶显示，通过键盘按下去上的数值-1602 liquid crystal display, go through the keyboard by the numerical

这是一个软件串口的源代码 单片机为em78p458,已经测试成功-This a serial software source code for the MCU em78p458, has been tested successfully

SIGMA-DELTA 原理 实现的用LPC900系列单片机的比较器实现16位A/D。 有详细的说明和源代码（汇编格式，但是可以在KEIL下的C中调用）。-SIGMA-DELTA principle achieved using the LPC900 Series compared to 16-bit A/D. A detailed description and the source code (the compilation format, but in the C KEIL Calling).

485通讯的底层驱动,完成485网络数据收发功能-The bottom of drive 485 to complete the network data transceiver function 485

使用PIC芯片控制U2270读取125KHz ID卡卡号，因为所使用的PIC资源很少，此程序极为精简，包含中断曼切斯特解码和校验全过程，非常实用。-The use of PIC chip control U2270 Read 125KHz ID card number, because the use of PIC scarce resources, this program is extremely streamlined, with interruption of Manchester decoding and checking the whole process is very useful.

avr单片机atmega8,ad转换测试程序，本程序为试例程序，适用于初学者-avr SCM atmega8, ad conversion, testing procedures, the procedures for test cases procedures applicable to beginners

环境是IAR,本实例应用于大棚或是其他需要温度控制的场合，可以供大家参考一下。-Environment is the IAR, the examples used in greenhouses or other occasions the need for temperature control, you can refer to for everyone.

利用单片机测频率-frequency measurement using SCM

SPMC75F2413A单片机在AC变频空调中的应用-Singlechip SPMC75F2413A in AC inverter air conditioner application

AV系统数字调谐PLL频率合成器的单片机控制 文章利用LC7218PLL频率合成器在AV领域的电调谐功能,提出了一个TV/FM/AM全景接收机设计方案,重点设计分析了LC7218与单片机之间的I/O数据结构,显示了它优良的性能。-AV system PLL digital tuning of the single-chip frequency synthesizer to control the use of article LC7218PLL frequency synthesizer in the AV field of electrical tuning function, a TV/FM/AM panoramic receiver design programs that focus on design and analysis of the LC7218 and MCU between the I/O data structure, demonstrated its excellent performance.