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MSP430单片机、CC2500主程序实现无线抄表功能。(MSP430 microcontroller wireless meter reading, CC2500 main program.)

小型四旋翼飞行器以其简单的机体结构!优越的悬停和低速性能!灵活简便的操控方法等优势开始被越来越多的科研人员和商业机构所重视,并逐渐成为无人飞行器领域新的研究热"本文以小型四旋翼飞行器的实时控制系统为研究对象,围绕室内环境下 的悬停和低速巡航这一设计需求开展研究,以自行搭建的小型四旋翼飞行器为平台,设计制作了小型四旋翼飞行器的实时控制系统 (control system for quadrotor )

摘要 电能表作为用电量的测量工具广泛的应用于各种场合。在电能表校表系统中,需要的最基本的输入信号源是高精度双路正弦信号源,并要求可对其频率、相位、幅值进行调节,来对电能表进行校准。 基于单片机的程控信号源设计，运用数字调相、数字调幅和数字调频等技术，要求实现相位、幅度、频率的高精度程控调节。本文设计了一种利用锁相环频率合成技术和数字波形合成技术组成的程控低频正弦波信号发生器，并给出了调幅、调频、调相的实用电路，频率调节通过改变8253计数器的分频系数来实现；相位调节由51单片机预置计数器的计数初值来完成，幅度的调整通过改变DAC1210II的参考电压来实现，使频率分辨率达0.01Hz,相位调节精度达0.1°，并介绍电路中的主要芯的功能及使用。输出正弦波频率和幅值的精度高，稳定性好，失真度低，电路简单、可靠、便于程控。 关键词：数字合成信号源；程控；调幅；调频；移相； (Abstract Meter consumption as the size of the measurement tool is widely used in various occasions. In single-phase power meter verify system, the most basic needs of the input signal is the source of two-way high-precision sine signal source, and may request its frequency, phase, amplitude in a certain step to adjust to the imitate of the actual electricity load with a right meter calibration. Design of the programmable signal supply controlled source，which based on the MCU，including digital phase adjustment，distal amplitude adjustment，digital frequency adjustment etc．The system should achieve high quality digital adjustment of phase, amplitude and frequency. This paper describes the use of a PLL frequency synthesizer technology, and digital wave form synthesis technology consisting of program-controlled low-frequency sine wave signal issued devices, and applies the amplitude， frequency， phase of practical circuit. Frequency can be adjusted through a change in the 8253 counter-frequ)

基于芯片LPC2132的步进电机控制的基本实验(Chip LPC2132 stepper motor control experiment)

HSDL3208半双工通讯红外收发器，集成一体化红外通讯器件(HSDL3208 half-duplex communication infrared transmitters, Integration infrared communication device)

常用的AD620的介绍和说明，有较为详细的应用说明，配置方式，上手快(AD620 common introduction and description, a more detailed application instructions, configuration, quick)

2nd attempt but quite failed

BIOS emulator and interface to Realmode X86 Emulator Library Can emulate a PCI Graphic Controller VGA bios on a powerpc platform (BIOS emulator and interface to Realmode X8 6 Emulator Library Can emulate a PCI Graphic Con troller VGA bios on a platform powerpc)

说明：  这是基于开发板LPC1114的源码程序，是用C语言编写，关于液晶显示屏的配置和实现同时它也是一个完整的模板，可以在此基础上添加其他程序用于开发板的学习，是一个完整的模板，可直接使用。(This is based on the development board LPC1114 source code program, is written in C language, on the LCD display configuration and implementation at the same time it is a complete template, you can add other programs on this basis for the development board learning, is a complete template, can be used directly.)

基于51单片机的无线短距离温度检测，无线模块采用nRF903，433MHz(Based on 51 single-chip wireless short-range temperature detection, wireless module with nRF903, 433MHz)