HT1621 is a 128

目前市场上有很多语音录放系统，如录放音玩具、录音笔等，大多采用了单片机控制一个语音芯片，再接一个FLASH存储器的结构。单片机可以控制录放时间，选取特定时间段的播放以及单多声道的录放，容易通过改变外接存储FLASH改变录放时间。 我们做的是一个简单模型，只能录放。 只需要录音和放音时的外部 ROSC 端振荡电阻不同就能改变声音的录入和播放速度，录入的时间越短音质越好，录入的时间越长音质越差 它采用模拟量直接存贮技术，因此保真度高，音质好 -Currently on the market there is a lot of voice recording systems, such as sound recording toys, sound recording pens and so on, most of the single-chip microcomputer to control the use of a voice chip, making the structure of a FLASH memory. Single-chip microcomputer can control the playback time, select a specific period of time many of the players, as well as single-channel recording, easy to FLASH memory by changing the external playback time change. We make a simple model, only playback. Required only when the recording and playback-side oscillation of the external resistor ROSC will be able to change different recording and playback of sound speed, the shorter the time of admission, the better sound quality, longer recording sound worse using direct ana

440BX开发板 LED显示测试 试验程序-440BX Development Board LED tests procedures

PID算法的口决，帮您快速解决PID的整定-PID algorithm I must help you to quickly solve the PID setting

u-boot源代码，不支持lcd(440BX)-u-boot source code and does not support lcd (440BX)

整个控制过程中最关键的部分是与PC和终端的通讯过程。有关两方面通讯的详细的协议参见PC和终端的文档-51

LT-1B msp430开发板例子程序－ADC12_-LT-1B msp430开发板例子程序－ADC12_11

编写pwm程序的时候，肯定有用的程序，自己看一看-Preparation program when the pwm is definitely a useful program, take a look at their own

1． 电梯初始位置在第一层。 2． 算法完全模拟电梯工作。 3． 显示电梯所在层数和运动方向。 4． 按键复用，部分按钮在不同的时候表示两种功能。 -1. Elevator initial position in the first layer. 2. Algorithm fully simulated elevator work. 3. Show where the low-rise elevator direction and movement. 4. Key reuse, and some buttons at different times, said two functions.

用C8051F020编写的RA8803控制器320240液晶程序-C8051F020 prepared with RA8803 LCD controller 320,240 procedures

单片机C8051加无线模块NRF24l01，实现温度传感器数据的采集和无线传输-C8051 MCU plus wireless module NRF24l01, to achieve the temperature sensor data acquisition and wireless transmission