旋转LED制作.docx

旋转LED的制作山东农业大学机电学院 刘承杰1.简介旋转LED是利用人的视觉暂留性，用高频率的刷新，使人感觉到形成一幅完整的画面。其结构简单，构件实惠，易懂易学。主要由控制部分，灯阵部分，旋转部分，供电部分，程序等构成。2.制作步骤A.控制部分 控制部分有多种形式在此仅以51单片机为例进行介绍，焊接单片机最小系统如图所示其中C10和C11为30Pf瓷片电容电容右侧为12M晶振。图片右下角可不焊接。B灯阵 灯阵可由16个或8个一列发光LED组成LED灯为公共正极，负极单独引线并顺序连接至单片机引脚的P2口和P1口，共16根线。公共正极连接至单片机电源正极。C旋转部分 旋转部分主要由电机构成，电机外接独立电源。开关处最好接滑动变阻器以调节转速。D程序/*此代码移植性良好*/#include /单片机头文件#define DY_DELAY2 /设置每一个点显示的时间长度（120）sbit LED1 = P2 0; /LED灯定义，低电平时亮（自上到下）sbit LED2 = P2 1;sbit LED3 = P2 2;sbit LED4 = P2 3;sbit LED5 = P2 4;sbit LED6 = P2 5;sbit LED7 = P2 6;sbit LED8 = P2 7;sbit LED9 = P1 0;sbit LED10 = P1 1;sbit LED11 = P1 2;sbit LED12 = P1 3;sbit LED13 = P1 4;sbit LED14 = P1 5;sbit LED15 = P1 6;sbit LED16 = P1 7;sbit LED17 = P10;sbit LED18=P11;unsigned char code logo = 0x00,0x01,0x80,0x40,0x60,0x40,0x1E,0x41,0x10,0x41,0x10,0x41,0x10,0x41,0x10,0x41,0xFF,0x7F,0x12,0x41,0x10,0x41,0x10,0x41,0x98,0x41,0x10,0x61,0x00,0x40,0x00,0x00,/*生,0*/0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x3F,0x42,0x10,0x42,0x10,0x42,0x10,0x42,0x10,0x42,0x10,0x42,0x10,0x42,0x10,0xFE,0x3F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*日,1*/0x70,0x00,0x00,0x00,0xFF,0xFF,0x08,0x00,0xB0,0x80,0x88,0x40,0x88,0x30,0x88,0x0E,0xFF,0x01,0x88,0x06,0x88,0x08,0x88,0x30,0xF8,0x60,0x80,0xC0,0x80,0x40,0x00,0x00,/*快,2*/0x00,0x00,0x00,0x20,0x40,0x18,0xFC,0x0C,0x44,0x07,0x44,0x12,0x44,0x20,0x46,0x40,0xFA,0x3F,0x42,0x00,0x43,0x00,0x43,0x02,0x42,0x0C,0x40,0x38,0x00,0x10,0x00,0x00,/*乐*/;/*函数名：毫秒级CPU延时函数调 用：DELAY_MS (?);参 数：165535（参数不可为0）返回值：无结 果：占用CPU方式延时与参数数值相同的毫秒时间备 注：应用于1T单片机时i600，应用于12T单片机时i125/*/void DELAY_MS (unsigned int a)unsigned int i;while( -a != 0)for(i = 0; i 600; i+);/*函数名：LED显示用延时函数调 用：delay(?);参 数：165535（参数不可为0）返回值：无结 果：占用CPU方式延时与参数数值相同的毫秒时间备 注：应用于1T单片机时i600，应用于12T单片机时i125*/void delay (unsigned int a) / 用于点扫描的延时unsigned int i;while( -a != 0)for(i = 0; i 1; i+); /*/*函数名：关闭所有LED灯（操作硬件）调 用：DISPLAY_OFF();参 数：无返回值：无结 果：所有LED灯熄灭备 注：/*/void DISPLAY_OFF (void)delay(DY_DELAY);/显示停留P2 = 0xff;P1 = 0xff; /LED17=0; / LED18=0;/*/*函数名：单帧数据送入显示（操作硬件）调 用：DISPLAY_PIN(?,?);参 数：16位显示数据（下高位）（d：上面8位，e：下面8位）返回值：无结 果：点亮对应数据的LED灯备 注：/*/void DISPLAY_PIN (unsigned char d,unsigned char e) /第1列横向显示程序unsigned char i;i = d & 0x01;if(i = 0x01)LED1 = 0;DISPLAY_OFF();i = d & 0x02;if(i = 0x02)LED2 = 0;DISPLAY_OFF();i = d & 0x04;if(i = 0x04)LED3 = 0;DISPLAY_OFF();i = d & 0x08;if(i = 0x08)LED4 = 0;DISPLAY_OFF();i = d & 0x10;if(i = 0x10)LED5 = 0;DISPLAY_OFF();i = d & 0x20;if(i = 0x20)LED6 = 0;DISPLAY_OFF();i = d & 0x40;if(i = 0x40)LED7 = 0;DISPLAY_OFF();i = d & 0x80;if(i = 0x80)LED8 = 0;DISPLAY_OFF();i = e & 0x01;if(i = 0x01)LED9 = 0;DISPLAY_OFF();i = e & 0x02;if(i = 0x02)LED10 = 0;DISPLAY_OFF();i = e & 0x04;if(i = 0x04)LED11 = 0;DISPLAY_OFF();i = e & 0x08;if(i = 0x08)LED12 = 0;DISPLAY_OFF();i = e & 0x10;if(i = 0x10)LED13 = 0;DISPLAY_OFF();i = e & 0x20;if(i = 0x20)LED14 = 0;DISPLAY_OFF();i = e & 0x40;if(i = 0x40)LED15 = 0;DISPLAY_OFF();i = e & 0x80;if(i = 0x80)LED16 = 0;DISPLAY_OFF(); /*函数名：初始化程序调 用：init();参 数：无返回值：无结 果：设计IO接口为强推方式并全部置1备 注：/*/void init (void) /* P4SW = 0xff; /启动P4接口/P0M0 = 0xff; /接口设置为强推/P2M0 = 0xff;/P4M0 = 0xff; */P1 = 0xff; /初始IO接口状态P3 =