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1、基于51单片机的16LED摇摇棒设计2009年05月15日 星期五 上午 11:54大家知道，人的眼睛存在视觉暂留现象，正因为眼睛的反应迟钝，才丰富了人的视觉感受。 LED摇摇棒很好地利用了人眼的视觉暂留特性。下图是基于51单片机控制、16只高亮度LED发光二极管构成的摇摇棒，配合手的左右摇晃就可呈现一幅完整的画面，可以显示字符、图片等。演示效果见自制LED摇摇棒展示【图】。实物外形图（点击可放大）：基本原理与硬件电路设计： 16只LED发光管作为画面每一列的显示，左右摇晃起到了扫描的作用，人眼的视觉暂留现象使得看到的是一幅完整的画面。与LED点阵的显示有几分相仿。 硬件电路如下图（点击可放大
2、）。系统电源VCC为5V，下载程序和调试时一定要保证5V电压，实际使用时用3节干电池串联4.5V即可。AT89S52单片机作为控制器，在它的P0、P2口接有16只以共阳的方式连接的高亮度LED，由单片机输出低电平点亮。P0口的上拉电阻RA1不能少。串在LED公共端的二极管D1会产生一定的压降，用来保护LED，经实测LED点亮时两端电压为3V左右，在LED的安全承受范围内。K1是画面切换开关，用于切换显示不同内容；S1为水银开关。水银开关的作用：棒在摇动时，只能在朝某一方向摇动时显示，否则会出现镜像字或镜像画面，所以通过接一只水银开关来控制，使摇摇棒从左向右摇动时将内容显示出来。硬件制作：使用的
3、是直径5mm的红色高亮LED，感觉太大了些，远看效果很好但近看时字不够连贯。建议使用直径为3mm的高亮LED，颜色可根据个人喜好选择。水银开关里的水银珠很活跃，导致在接通时容易产生抖动，所以将水银开关斜向上放置（尖尖朝斜上方45角），靠水银珠自身重力的作用减少抖动：IC座里面隐藏元件，既美观又能保护元件：软件设计：/*程序名称：LED摇摇棒显示64*16像素简要说明：外部中断方式INT0显示；取模方式：纵向取模、字节倒序编 写：JiangX.net最后更新：08/11/15晚*/#include #define uchar unsigned char#define uint unsigned
4、int /宏定义#define KEY P3_0 /定义画面切换按键uchar KY; /KY作用在后面说明uchar disp; /显示汉字指针uchar pic=0,num=0; /pic为按键次数；num为中断次数uchar code love = 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x3F,0x00,0x20,0x00,0x20,0x00,0x20,0x00,0x20,0x
5、00,0x20,0x00,0x20,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0x0F,0x04,0x10,0x02,0x20,0x02,0x20,0x02,0x20,0x02,0x20,0x04,0x10,0xF8,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x07,0x00,0x08,0x00,0x10,0x00,0x20,0x00,0x20,0x00,0x10,0x00,0x08,0xFE,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x3F,0x82,0x20,0x
6、82,0x20,0x82,0x20,0x82,0x20,0x82,0x20,0x82,0x20,0x82,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*LOVE*/;uchar code loveyou = 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x
7、00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,0x00,0xFC,0x00,0xFE,0x01,0xFE,0x03,0xFE,0x07,0xFE,0x0F,0xFE,0x1F,0xFC,0x3F,0xF8,0x7F,0xFC,0x3F,0xFE,0x1F,0xFE,0x0F,0xFE,0x07,0xFE,0x03,0xFE,0x01,0xFC,0x00,0x
8、78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*心形图案*/;uchar code hehe = 0x00,0x00,0x00,0x00,0x00,0x00,0x00,
9、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x01,0x40,0x01,0xC0,0x01,0x00,0x00,0x00,0x00,0xF0,0x0F,0x08,0x10,0x04,0x20,0x00,0x00,0x00,0x00,0xF0,0x3F,0x08,0x00,0x04,0x00,0x04,0x00,0x04,0x00,0x08,0x00,0xF0,0x3F,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x20,0x00,0x20,0x00,
10、0x20,0x00,0x20,0x00,0x00,0x00,0x00,0xF0,0x3F,0x08,0x00,0x04,0x00,0x04,0x00,0x04,0x00,0x08,0x00,0xF0,0x3F,0x00,0x00,0x00,0x00,0x04,0x20,0x08,0x10,0xF0,0x0F,0x00,0x00,0x00,0x00,0xC0,0x01,0x40,0x01,0xC0,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
11、0x00,/*呵呵o(_)o图案*/;unsigned char code hanzi = /- 欢 - 0x04,0x10,0x34,0x08,0xC4,0x06,0x04,0x01, 0xC4,0x82,0x3C,0x8C,0x20,0x40,0x10,0x30, 0x0F,0x0C,0xE8,0x03,0x08,0x0C,0x08,0x10, 0x28,0x60,0x18,0xC0,0x00,0x40,0x00,0x00,/- 迎 - 0x40,0x00,0x42,0x40,0x44,0x20,0xC8,0x1F, 0x00,0x20,0xFC,0x47,0x04,0x42,0x02,0
12、x41, 0x82,0x40,0xFC,0x7F,0x04,0x40,0x04,0x42, 0x04,0x44,0xFE,0x63,0x04,0x20,0x00,0x00,/- 使 - 0x40,0x00,0x20,0x00,0xF8,0xFF,0x07,0x00, 0x04,0x80,0xF4,0x43,0x14,0x45,0x14,0x29, 0x14,0x19,0xFF,0x17,0x14,0x21,0x14,0x21, 0x14,0x41,0xF6,0xC3,0x04,0x40,0x00,0x00,/- 用 - 0x00,0x80,0x00,0x60,0xFE,0x1F,0x22,0x
13、02, 0x22,0x02,0x22,0x02,0x22,0x02,0xFE,0x7F, 0x22,0x02,0x22,0x02,0x22,0x42,0x22,0x82, 0xFF,0x7F,0x02,0x00,0x00,0x00,0x00,0x00,/- 神 - 0x08,0x01,0x88,0x00,0x49,0x00,0xEE,0xFF, 0x58,0x00,0x88,0x00,0x00,0x00,0xF8,0x1F, 0x88,0x08,0x88,0x08,0xFF,0xFF,0x88,0x08, 0x88,0x08,0xFC,0x1F,0x08,0x00,0x00,0x00,/- 奇
14、 - 0x40,0x00,0x40,0x00,0x44,0x00,0x44,0x3E, 0x64,0x12,0x54,0x12,0x4C,0x12,0x47,0x12, 0x4C,0x3F,0x54,0x42,0x74,0x80,0xC6,0x7F, 0x44,0x00,0x60,0x00,0x40,0x00,0x00,0x00,/- 魔 - 0x00,0x40,0x00,0x30,0xFE,0x8F,0x4A,0x80, 0xAA,0x5F,0x9A,0x4A,0xFE,0x2A,0xAA,0x1A, 0xCB,0x0F,0xAA,0x7A,0xFE,0x8A,0x9A,0xAA, 0xAA
15、,0x8F,0x6B,0x80,0x22,0xE0,0x00,0x00,/- 幻 - 0x80,0x20,0xC0,0x30,0xA0,0x28,0x98,0x24, 0x87,0x22,0x80,0x21,0xC4,0x30,0x04,0x60, 0x04,0x00,0x04,0x20,0x04,0x40,0x04,0x80, 0x04,0x40,0xFE,0x3F,0x04,0x00,0x00,0x00,/- 摇 - 0x10,0x02,0x10,0x42,0x10,0x81,0xFF,0x7F, 0x90,0x04,0x54,0x05,0xCC,0xF4,0xB4,0x44, 0x84,
16、0x44,0xBC,0x7F,0x82,0x44,0xA2,0x44, 0x9B,0xF4,0x82,0x06,0x00,0x04,0x00,0x00,/- 摇 - 0x10,0x02,0x10,0x42,0x10,0x81,0xFF,0x7F, 0x90,0x04,0x54,0x05,0xCC,0xF4,0xB4,0x44, 0x84,0x44,0xBC,0x7F,0x82,0x44,0xA2,0x44, 0x9B,0xF4,0x82,0x06,0x00,0x04,0x00,0x00,/- 棒 - 0x10,0x04,0x10,0x03,0xD0,0x00,0xFF,0xFF, 0x90,0
17、x00,0x54,0x05,0x44,0x12,0xD4,0x15, 0x74,0x14,0x5F,0xFF,0xD4,0x14,0x54,0x15, 0x56,0x12,0x44,0x06,0x40,0x02,0x00,0x00,/- ！ - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x7C,0x10,0xFE,0x3B, 0xFE,0x3B,0x7C,0x10,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00;/*函数声明*/void d
18、isplay1(void);void display2(void);void display3(void);void display4(void);/*n（us）延时子程序*/void DelayUs(uint N)uint x;for(x=0; x10)disp+;num=0; /12个汉字分为3次显示完（每次显示4个），每中断10次切换if(disp2)disp=0; DelayUs(5200); /此处延时时间依各硬件差别而各不相同，试着调整使得显示内容居中即可for(i=0;i64;i+) P0=hanzidisp*128+i*2; P2=hanzidisp*128+i*2+1; De
19、layUs(100);/*显示子程序2（LOVE）*/void display2(void)uchar i;DelayUs(4000);for(i=0;i64;i+) P0=lovei*2; P2=lovei*2+1; DelayUs(120);/*显示子程序3（心形图案）*/void display3(void)uchar i; DelayUs(4000);for(i=0;i64;i+) P0=loveyoui*2; P2=loveyoui*2+1; DelayUs(120);/*显示子程序4（呵呵o(_)o图案）*/void display4(void)uchar i;DelayUs(4000);for(i=0;i3)pic=0;/*END*/