PowerPCB

基于 AVR 单片机的水温自动控制系统 摘要: 本系统以 ATMEGA16 单片机作为系统的检测和控制核心，采用温度传感器 AD590实现0—100℃温度范围内的实时温度采集，通过双向可控硅 BT136 控制电热杯对系统进行加热，利用继电器控制半导体制冷片对系统进行散热。通过一线键盘实现对任意温度值进行设定并对模糊 PID 参数的调整，液晶 LCD1602 实时更新显示当前温度测量值与键盘设定温度值。利用模糊 PID 算法，通过调功法对水温系统进行控制,实现在 0—100℃范围内任意设定温度值，静态误差小于±0.5℃。 关键词： AVR 单片机 水温自动控制 模糊 PID 算法 (AVR Microcontroller Based Temperature Control System Abstract: This system ATMEGA16 microcontroller as the core monitoring and control system using the temperature sensor AD590 0-100 ℃ temperature range to achieve real-time temperature acquisition, through triac BT136 control system for electric heating cup, using relay control system for semiconductor cooling heat tablet. Achieved through the keyboard line value for any temperature setting and adjustment of fuzzy PID parameters, real-time updates LCD1602 LCD displays the current temperature measurements and the keyboard set temperature. Fuzzy PID algorithm, the system transfer function method of temperature control, to achieve the 0-100 ℃ adjustable set temperature, the static error is less than ± 0.5 ℃. Keywords: AVR microcontroller water temperature control fuzzy PID algorithm )

红外摇控(HT6221)控制小车,用51单片机编写的(Infrared remote control (HT6221) to control the car, written in 51 single chip microcomputer )

基于52的鼠标读取实验，本系统用1602显示。是教学和开发的良好教材(The mouse is based on the mouse read experiment, 52, this system USES 1602 display. The development of good is teaching and teaching materials )

笙泉单片机ma82g5b32的例程代码，可解压使用(The routine code of Shengquan MCU ma82g5b32 can be decompressed and used)

液晶1602单片机驱动程序代码，适合stc89c52rc,at89s52.(The driver code of 1602 display,for mcu stc89c52rc,at89s52.)

四旋翼无人机飞控代码，采用MPU6050姿态传感器，串级PID控制，实现无人航空新篇章(Quadrotor UAV flight control code, using MPU6050 attitude sensor, cascade PID control, unmanned aerial chapter)

此为51单片机的正弦波产生c程序，可将hex文件烧录到单片机内使用。(This is a 51 microcontroller sine wave generator c program, you can burn the hex file into the MCU.)

stm32f103测正弦波、方波的波形频率。(Measurement of waveform frequency by STM32F103.)

说明：  亿光EL817光耦的应用资料，我已经在电路板上使用了模块，很好用，可以用在低速开关领域(100 million light EL817 optocoupler application information, I have used the modules in the circuit board, well used, can be used in the field of low-speed switch)

西电毕业论文，文章详细的阐述了直扩原理并且进行了仿真。扩展频谱技术有多种基本实现方式，本文主要介绍的是直接序列 扩频技术，特别针对二进制的 PSK调制解调技术，直接序列扩频系统的抗干 扰能力分析与直接序列扩频系统的同步方法，并进行了相关仿真分析。(Spread spectrum communications has many basic manners of implementation, this paper main introduces the direct sequence spread spectrum technology. The technology of digital signals’ modulation and demodulation, aiming at phase shift keying analyzing the capacity of resistance to anti-jamming of direct sequence spread spectrum system(DSSS) and the method of synchronization in direct sequence spread spectrum system base on the DSSS of the matlab’s simulation.)