Based on the ARM in LPC2131 chip, prepared by the SPI, source code!

这是从网上找来的一个比较典型的PID处理程序，在使用单片机作为控制cpu时，请稍作简化。-It is found from the Internet a more typical PID treatment procedures, the use of single-chip microcomputer as the control cpu, please make some simplification.

红外通信是利用950nm近红外波段的红外线作为传递信息的媒体，即通信信道。发送端采用脉时调制（PPM）方式，将二进制数字信号调制成某一频率的脉冲序列，并驱动红外发射管以光脉冲的形式发送出去；接收端将接收到的光脉转换成电信号，再经过放大、滤波等处理后送给解调电路进行解调，还原为二进制数字信号后输出。-Infrared communication is the use of near infrared 950nm infra-red as the transmission of information media, namely communication channel. The sending end when the use of pulse modulation (PPM) approach will be a binary digital signal into a frequency modulation of the pulse sequence, and driver fired infrared tube to the form of light pulses sent receiver will receive the pulse of light conversion to electrical signals , and then, after amplification, filtering and other treatment to the demodulation circuit after demodulation, reduced to a binary digital signal after the output.

在8位单片机中对16位数进行开方运算的汇编子程序-In 8-bit MCU in the median of 16 for the compilation of prescription computing subroutine

电子琴 1． 实验任务 　1． 由 4X4 组成 16 个按钮矩阵，设计成 16 个音。 　2． 可随意弹奏想要表达的音乐。-a flower. An experimental tasks. Formed by the 4x4 matrix button 16, 16 designed to sound. 2. Free expression want to play the music.

与epson m-150打印机通信，但是有些错误，希望高手指正一下-With epson m-150 printer communication, but some mistakes, hope you can correct me about

多功能电子钟、Proteus、源代码、原理图-Multi-functional electronic bell, Proteus, source code, schematics

这是通讯接口实验《DA转换原理实验》的原理程序，适合于那些上嵌入式系统、通信、计算机专业的人-This is the communication interface experiment, "DA conversion principle experiment," the principle procedures, suitable for those on embedded systems, communications, computer specialists in the

AVR的mega16单片机与51单片机的串口通信程序源码-The MCU of atmega16 of AVR and the MCU of C51 communication

本程序是用GCC编写的超声波传感器智能小车波避障程序，单片机是AVR16-The program of the intelligent car obstacle avoidance by ultrasonic sensor