51单片机做的呼吸灯源代码
单片机源程序如下:
- #include<reg51.h>
- #define uint unsigned int
- #define uchar unsigned char
- //sbit LED0=P3^5;
- //sbit LED1=P3^4;
- //sbit LED2=P3^0;
- //sbit LED3=P3^1;
- //sbit LED4=P3^2;
- //sbit LED5=P3^3;
- uint cycle,high,low;
- void delay(uint t)
- {
- while(t--);
- }
- void main()
- {
- cycle=700; //周期
-
- while(1)
- {
- for(high=cycle-1;high>0;high--) //由亮变暗
- {
- P3=0xff;
- delay(high);
- P3=0x00;
- low=cycle-high;
- delay(low);
- }
- P3=0x00;
- delay(60000);
- for(high=1;high<cycle;high++)
- { //由暗变亮
- P3=0xff;
- delay(high);
- ……………………
- …………限于本文篇幅 余下代码请从51黑下载附件…………
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