BecomeAGoodSpeaker

说明：  液晶模块的驱动范例，常用的例程，包内有多个程序，对单片机控制液晶模的编程有很大参考价值！(failed to translate)

美国达拉斯温度传感器DS18B20的温度数值转化程序。(Dallas DS18B20 the temperature into numerical procedures.)

说明：  BIN文件转换成带地址的S19文件的工具，在windows平台下运行，一直在用比较方便。(The tool for converting BIN files into S19 files with addresses, which runs on Windows platform.)

说明：  nrf905模块的无线通信例子，希望有用(Nrf905 module wireless communication example, hope useful)

资源描述本设计是一个，智能循迹小车，此下车可以按照设定的路行驶，车的路线可以黑色的胶带设计路径，路径可有很大的角度。

基于stm32 的语音识别程序，通过识别关键词回复相应的语句(STM32 based speech recognition program, by identifying key words to reply to the corresponding statement)

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)

这是一个模拟时钟的小程序，其中仿真时钟出来的波形还是很不错的，能达到设计的要求。(This is an analog clock applet, which the simulation clock waveform is still very good to meet the design requirements.)

说明：  基于stm32F103C8 与AT24C64实现开机次数记录(Record the number of startup times based on stm32f103c8 and at24c64)

这是一个CC1101的PCB板子原理图和PCB文件，给大家设计带来方便(This is a CC1101 the PCB board schematics and PCB files, designed to bring convenience to everyone)