智能台灯（内含原理图及代码）

#include"reg51.h" #define uint unsigned int void Delayms(uint); void PWM_Init(); void Key(); void Clock(); void Init_Timer0(); //void ADC0809(); sbit LED=P3^4; sbit HW=P3^5; sbit Ind=P3^6; sbit Beep=P3^7; sbit sub=P2^0; sbit add=P2^1; sbit set=P2^2; sbit change=P2^3; sbit w1=P2^4; sbit w2=P2^5; sbit w3=P2^6; sbit w4=P2^7; //------ADC0809-------------- /*sbit clk=P3^0; sbit st=P3^1; sbit eoc=P3^2; sbit oe=P3^3;*/ #define Data P0 unsigned char timer0_cnt,r1; unsigned char i; unsigned char s1;s2;s3;s4; unsigned char se; unsigned char c_set; uint pwm=100,aa=600; uint pwm_cnt=0; bit flag0; bit flag_set; bit flag_beep; unsigned char code SHUZI[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; unsigned char code SHUDIAN[]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87, 0xff,0xef}; void Delay(uint t) { while(--t); } void Delayms(uint t) //3ms { int j; for(;t>0;t--) for(j=0;j<=300;j++); } /*void ADC0809() { st=0; st=1; st=0; eoc=1; while(eoc==0) { eoc=1; Beep=0; } oe=1; Data=0xFF; Delayms(1); oe=0; }*/ void main() { w1=1; w2=1; w3=1; w4=1; s1=0; s2=0; s3=0; s4=0; i=0; se=0; flag0=0; flag_set=0; flag_beep=0; Beep=1; //1不响 LED=0; //0点亮 timer0_cnt=0; r1=0; Init_Timer0(); while(1) { if(HW==1) //HW接近为0，离开为1 Beep=1; else //接近 Beep=0; Key(); if(flag_set==0) { Clock(); } if((s1==0)&&(s2==0)&&(s3==0)&&(s4==0)&&(flag_beep==1)) { Beep=0; Delayms(5000); flag_beep=0; Beep=1; } if(Ind==1) { PWM_Init(); } else LED=1; // if(r1=80) // ADC0809(); // pwm=Data/255; } } void PWM_Init() { if(add==0)pwm++;//add是按键开关 if(sub==0)pwm--;//sub也是 if(pwm==600)pwm=599; if(pwm==50)pwm=51; LED=0; //灯亮 Delay(pwm); LED=1; //灭 Delay(aa-pwm); } void Key() { if(set==0) { Delayms(5); // 5ms if(set==0) { Delayms(333); //延时1s flag_set=~flag_set; w1=0;w2=1;w3=1;w4=1; c_set=0; flag0=0; } } if(flag_set==1) { if(add==0) //加 { Delayms(5); if(add==0) { Delayms(333); //延时1s if(w1==0) { if(s1<9) s1++; else s1=0; } else if(w2==0) { if(s2<5) s2++; else s2=0; } else if(w3==0) { if(s3<9) s3++; else s3=0; } else if(w4==0) { if(s4<5) s4++; else s4=0; } } } if(sub==0) //减 { Delayms(5); if(sub==0) { Delayms(333); //延时1s if(w1==0) { if(s1>0) s1--; else s1=9; } if(w2==0) { if(s2>0) s2--; else s2=5; } if(w3==0) { if(s3>0) s3--; else s3=9; } if(w4==0) { if(s4>0) s4--; else s4=5; } } } if(change==0) //换 { Delayms(5); if(change==0) { Delayms(333); //延时1s se++; if(se>3) se=0; switch(se) { case 0:w1=0;w2=1;w3=1;w4=1;c_set=0; break; case 1:w1=1;w2=0;w3=1;w4=1;c_set=1; break; case 2:w1=1;w2=1;w3=0;w4=1;c_set=2; break; case 3:w1=1;w2=1;w3=1;w4=0;c_set=3; break; default:break; } } } switch(c_set) { case 0: P0=~SHUZI[s1]; break; case 1: P0=~SHUZI[s2]; break; case 2: P0=~SHUDIAN[s3]; break; case 3: P0=~SHUZI[s4]; break; default:break; } } } void Clock() { if(flag0==1) { flag0=0; if(s1>0) s1--; else if((s2>0)||(s3>0)||(s4>0)) { s1=9; if(s2>0) s2--; else if((s3>0)||(s4>0)) { s2=5; if(s3>0) s3--; else if(s4>0) { s3=9; s4--; } } } if((s1==1)&&(s2==0)&&(s3==0)&&(s4==0)) { flag_beep=1; } } i++; if(i>3) i=0; switch(i) { case 0: w1=0;w2=1;w3=1;w4=1; P0=~SHUZI[s1]; break; case 1: w1=1;w2=0;w3=1;w4=1; P0=~SHUZI[s2]; break; case 2: w1=1;w2=1;w3=0;w4=1; P0=~SHUDIAN[s3]; break; case 3: w1=1;w2=1;w3=1;w4=0; P0=~SHUZI[s4]; break; default:break; } P0=0xFF; } void Init_Timer0() //5ms,T0,方式0 { TH0=0X4C; TL0=0X00; TMOD=0x01; flag0=0; TF0=0; ET0=1; EA=1; TR0=1; } void Timer0(void) interrupt 1 { TH0=0X4C; TL0=0X00; if(timer0_cnt<20) //1s { timer0_cnt++; } else { timer0_cnt=0; flag0=1; } r1++; if(r1>100) r1=0; }