基于单片机的楼宇对讲控制

基于单片机的楼宇对讲系统本系统可实现门口呼叫一楼、二楼。一、二指示灯闪烁（提示呼叫），按下接听键应答，通话结束，可按开门键开门，关闭键关闭通话等功能C语言程序如下#include<reg52.h>sbithu1=P0^0; //呼叫一楼sbithu2=P0^1; //呼叫二楼sbita11=P0^3; //一楼接通sbita12=P0^4; //一楼挂断sbita13=P0^5; //一楼开门sbita21=P1^0; //二楼接通sbita22=P1^1; //二楼挂断sbita23=P1^2; //二楼开门sbitL11=P3^0; //一楼L1sbitL12=P3^1; //一楼L2sbitL21=P3^3; //二楼L1sbitL22=P3^4; //二楼L2sbitzhishi1=P2^0; //一楼指示灯sbitzhishi2=P2^1; //二楼指示灯sbitmen=P2^2; //门指示灯sbitshengyin=P2^3; //声音开关sbithuatong1=P2^4; //一楼话筒sbithuatong2=P2^5; //二楼话筒sbitlaba1=P2^6; //一楼喇叭sbitlaba2=P2^7; //二楼喇叭bitFlag1; //标志位bitFlag2; //标志位bitsa11;bitsa21;voiddelay(unsignedintcnt) //1ms延时函数{unsignedintx,y; for(x=cnt;x>0;x--) for(y=110;y>0;y--);}voidshanshuo(){if(Flag1==1&&sa11==0){ L11=1; delay(100); L11=0; delay(100);}if(Flag2==1&&sa11==0){L21=1; delay(100); L21=0; delay(100);}}voidLd_Display() //显示L函数{ if(hu1==1&&Flag2==0) { delay(200); if(hu1==1) { Flag1=1; zhishi1=1; } } if(hu2==1&&Flag1==0) { delay(200); if(hu2==1) { Flag2=1; zhishi2=1; } } if(a11==1&&Flag1==1) { delay(200); if(a11==1) { sa11=1; } } if(a21==1&&Flag2==1) { delay(200); if(a21==1) { sa21=1; } } shanshuo(); while(Flag1==1&&sa11==1) { L11=1;shengyin=0; huatong1=0; laba1=0; if(a13==1) { L12=1; men=1; } if(a12==1) { L11=0; L12=0; men=0; zhishi1=0;shengyin=1; huatong1=1; laba1=1; Flag1=0; sa11=0; } } while(Flag2==1&&sa21==1) { L21=1;shengyin=0; huatong2=0; laba2=0; if(a23==1) { L22=1; men=1; } if(a22==1) { L21=0; L22=0; men=0; zhishi2=0;shengyin=1; huatong2=1; laba2=1; Flag2=0; sa21=0; } }}voidmain() //主函数{ zhishi1=zhishi2=men=0; shengyin=huatong1=huatong2=laba1=laba2=1; a11=a12=a13=a21=a22=a23=L11=L12=L21=L22=0; Flag1=Flag2=0; delay(2000);