MQ-7Beta2

在51单片机上实现RS485通讯，能够实现与上位机的通信(RS485 mode on 51 single, able to communicate with the host computer)

单片机联网的UIP协议程序，以及必要的驱动程序。(Networked microcontroller UIP agreement procedure, and the necessary drivers.)

本人做的无线三维室内定位毕业论文程序，可以有效削弱NLOS，时间同步，多径效应的影响，对研究生学习很有帮助。(I make three-dimensional wireless indoor positioning thesis program can effectively weaken the NLOS, time synchronization, multi-path effects, to master Dr. helpful.)

用程控放大器MCP6S26对信号进行增益放大，并用显示屏显示出来。(With a programmable gain amplifier MCP6S26 the signal amplification, and displayed by the display.)

说明：  基于STC51单片机，实现dds的算法部分(Based on 51, the algorithm part of the realization of dds)

STM32F407信号发生器输入一个正弦波，AD采样，DA输出，系统频率应该是输入的波形的频率的10倍以上保证输出波形的完整性，系统的输出频率可以使用示波器测试出。(Stm32f407 signal generator input a sine wave, AD sampling, Da output and system frequency should is 10 times the frequency of the input waveform to guarantee that the above output waveform of integrity, the output frequency of the system can use oscilloscope to test out. )

说明：  单片机实现贪吃蛇游戏，本人使用的是51单片机，显示器为16*16点整控制，此类方法适合初学者玩耍~~(Snake MCU)

ht1621驱动C语言版本,基本是一个通用的版本(ht1621 driver C language version of the basic version is a generic)

说明：  红外接收相关资料，很值得一看，是初学者学习的绝好资料(Infrared receiver information, it is worth a visit, is an excellent information for beginners to learn)

超声波测距（5 28线性处理）,测量线性度很高(Ultrasonic Ranging (528 linear processing), high linearity measurements)