基于51单片机的万能语音备忘录的设计

Design of voice memos system based on the STC—51

提出了一种既简单又方便的语音备忘录的设计思路。设计了由电源驱动、液晶显示、语音录制及播放、51核心控制时间设定及定时和彩灯闪烁六部分构成、由一块单片机来实现控制与显示功能的万能语音备忘录。采用了ISD1820录放,控制语音的录制,进而控制语音播放,并通过STC—51单片机定时播放语音功能和DS12C887时钟芯片作为计时定时外设模块的方法来实现本设计的基本框架。本设计采用单片机智能控制,数字实时显示,具有一定的实用性。

Nowadays people are living in the full competition and losing jobs occasional situation, and we will feel regretting when inevitably forgetting a lot of things in the fast-paced life. But we don＇t have the proper solution to make this situation no longer occurred frequently at this stage. In order to solve these issues, the authors propose the simple and convenient design ideas. The system consists of power supply, a liquid crystal display, voice recording and playback, time setting and timing,flashing lights, which was controlled by a single chip to achieve these functions. The isd1820 recording, recording of voice control, so as to control the voice playback, and by STC- 51 single-chip microcomputer timing broadcast speech function and clock chip DS12C887 as timing method of timing of the peripheral modules to realize the design of the basic framework. Combined with 51 single-chip microcomputer control 1602 and the clock chip experiments can effectively draw the clock timing accuracy, and the TA7666 P chip audio frequency control lights flashing to enrich the experiment. The design summary that using intelligent control, real-time digital display, has certain practicability and universality, the biggest advantage of the method is compact structure, set up a simple, easy to use, which makes the system simple and user-friend.