LLC

atmega128+tda7330B+tef607实现RDS(atmega128+tda7330B+tef607 to realize RDS)

Tests for <code>CertificateFactorySpi</code> class constructors and methods for Andriod.

max485 的数据说明书 知道用户使用该芯片 开发串口通讯(max485 datasheet)

INA128/INA129精密低功耗仪表放大器的详细中文资料及经典电路例子(INA128/INA129 precision low-power instrumentation amplifier中文detailed information and examples of the classic circuit)

温度仪表通用程序，可检测热电偶和CU50。程序带有PID控制算法和PID参数自整定算法。(General procedure can detect the temperature meter, thermocouple and CU50. The program with a PID control algorithm and the PID parameters self-tuning algorithm. )

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)

8255输入输出实验程序代码，适用于LAB8000通用微控制器实验系统(8255 input-output experimental procedure code applies LAB8000 general-purpose microcontroller experimental system)

51单片机实现12864绘图(包括打点、画线、显示显示图像函数)(51 MCU 12,864 drawings (including RBI, drawing lines, Display image functions))

说明：  430单片机中的led显示模块,对于初学者来说,这个程序简单易懂,是学习430的好帮手(430 in single-chip led display module, for beginners, this easy-to-read program is a good helper to learn 430)

自带小范围坐标识别，电机控制，语音控制，红外距离探测，电池充电控制，障碍识别，路径规划的功能，代码是基于单片机实现的！(It has the functions of small area coordinate recognition, motor control, voice control, infrared distance detection, battery charging control, obstacle recognition and path planning. The code is based on MCU.)