摘 要

本系统以单片机STC89C52、时钟芯片DS1302、LCD1602液晶显示屏、温度传感器DS18B20和语音芯片NY3P035为核心，具备调节时间、设置闹钟、整点报时、温度检测和语音播报功能。正常情况下，显示实时日期和时间，外设5个调节按键，可以调节实时时间和设置闹钟时间，按下“播报”按键播报实时时间和温度，当时间到达闹钟设置时间时，系统会播报“叮叮叮叮”的音乐声，并且在7—21时这个时间范围内能够整点报时。

关键词：电子钟；STC89C52；NY3P035；DS1302；DS18B20

Abstract

This system make MCU STC89C52 , clock chip DS1302 , LCD1602 LCD display, temperature sensor DS18B20 and voice chip NY3P035 as the core, with the function of adjusting time, seting the alarm time, hour speech, temperature detection and voice broadcast. Under normal circumstances, displays real-time date and time. You can Adjust the real time and set up the alarm time of the time switch lock by the keys. You also can press the "report" button to broadcast real time and temperature. When time reaches the alarm time, the system will broadcast music to remind you, and in the range time of 7-21 hour, it will broadcast hour.

Keywords: Electronic clock; STC89C52; NY3P035；DS1302; DS18B20