电子指南针与单片机通信

使用51单片机用算法的方式来产生SPWM的程序-Use 51 MCU way to use the algorithm to generate SPWM program

IR识别程序,由INT0输入.适合51单片机.-IR identification procedures, INT0 input. MCU for 51.

基于DS12887的多功能电子智能时钟，51控制 LCM-12864-ST7920显示，应用类型齐全。-DS12887-based multi-functional electronic smart clock, 51 control LCM-12864-ST7920 showed complete application types.

单片机测试串口通信程序，使用KEIL　ｃ进行开发，适合初学者学习-microcontroller serial communications testing procedures, the use of KEIL c develop suitable for beginners learning

CMOS图像传感器OV7620在点钞机人民币号码识别记录系统中的应用-CMOS image sensor OV7620 yuan in cash registers record number recognition system

读写C8051F020内部FLASH的代码-Read and write code C8051F020 internal FLASH

1、有单，和单双两种旋转模式。2、可以选择置数、和连续。两种控制模式。3、按梯形 曲线加速和减速。 4、所有的置数，及速度，都能通过数字显示。 -one, single, and both single-and double-rotation mode. 2, we can choose a few home, and continuous. Two control mode. 3, trapezoid curve acceleration and deceleration. 4, all the home number, and speed, can be settled through figures show.

模拟接受max7219的数据，主要是原系统升级，需要将原单片机驱动7219的数据接受并分析数据及命令。-simulation accept the data, major upgrade of the original system, the need for the original Microprocessor 7219 data accept and analyze data and orders.

OPENGMAX，大家可能都用到过，这里可以和大家分享一些优化的代码，可以共同提高，ARMcode 优化-OPENGMAX, you may have used before, here we can share some optimized code, can work together to improve, ARMcode optimization

Ti 公司低功耗RF芯片选型资料.其中有13.56-27MHz,300-1000MHz ,2.4GHz等等芯片选型参考-Ti low-power RF chip companies Selection information. Among them, 13.56-27MHz ,300-1000MHz, 2.4GHz chip, etc. Selection of reference