基于51单片机的ISD4003多段语音录放实验. 控制IC: AT89s52,isd4003,LM386, 系统晶振：12MHz -Based on 51 single-chip ISD4003 voice recording multi-stage experiment control IC: AT89s52, isd4003, LM386, system crystal: 12MHz

数字温度计，实现了语音播报，多温度点监测和华氏摄氏转化-Digital thermometer, to achieve a voice broadcast, multi-point temperature monitoring Fahrenheit and Celsius conversion