文章来源：由「百度新聞」平台非商業用途取用"http://www.eepw.com.cn/article/201610/307296.htm"

該文是一篇基于51單片機的DIY制作詳述，作者此時是51單片機初學者，這個制作也可以作為不少單片機學習者的練手實驗，如進行多樣衍生會得到不錯的設計。本文引用地址：http:www.eepw.com.cnarticle201610307296.htm在網上看到不少老外做的各種旋轉LED顯示屏，非常cool，我也動手用洞洞板試做了一個類似的顯示屏，結果感覺還不錯。由于剛學51單片機，加上制作電路板軟件也是從零開始，的確花了我不少的時間和精力。不過也就是在這艱難的獨立制作中，真正學到了不少實在的東西。本項目的關鍵是如何解決高速旋轉的電路板如何供電，如何調時的問題。我采用電機電刷的原理，將旋轉軸鉆空，通過一只插頭將電源的從反面引到前面的電路板上，而這個旋轉的插頭又與固定在背板上的兩個銅片接觸的。調時的問題有些困難，一是讓電路板在旋轉前與PC機相接，由電腦傳送調時數據，這雖然可行但不方便。還有就是用遙控方法，但此方案在調試方面有很大的困難。顯示方式上，我采用平衡式的兩排LED，這除了在旋轉時能較好的保持平衡外，主要能利用兩邊交替顯示方式，比單排要快一倍。本裝置不僅是一個時鐘，它還可以動態顯示漢字及圖案，這就看如何發揮了。其具體制作過程如下：一,旋轉電機的制作從制作成本與方便考慮，選用舊電腦用的大軟驅上的直流無刷電機，只是對局部進行改造。就是這種古董軟驅軟驅上的直流無刷電機拆開后的電機仔細拆開直流電機，將帶圓盤的鋁軸從中開孔，讓它剛好能插入一個插頭。裝配好以后按拆開時的順序，反序將軸安裝直流電機上。電機裝配完成后用兩片銅片做的電刷將電路板上較突出的元件改焊在反面，從電路板標注的符號看，+為電源正，G為電源負，C與M端分別與電源正相連勻可使電機運轉將一張舊唱片按電機座的位置開孔，而定位用的擋光板應根據電路板上感光組件的位置確定。二,電路板的制作本制作品用51單片機控制。遙控器用的是松下車載機的，只用了其中的六個鍵。三,軟件編程因學的是C51(不懂匯編)這里只提供C語言源程序，并限制為無遙控功能。也可提供帶遙控功能的hex文件。#includesbitgate11=P3^0;sbitgate12=P3^1;#defineunitunsignedint#defineucharunsignedcharuchardataBUFFER[]={0,0,0,0,1,1,7};uchardataM[]={31,28,31,30,31,30,31,31,30,31,30,31};ucharcodeNUM1[]={0x80,0x7F,0xC0,0xFF,0x40,0x90,0x40,0x8C,-0-0x40,0x82,0xC0,0xFF,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,0x81,0x80,0x81,0xC0,0xFF,-1-0xC0,0xFF,0x00,0x80,0x00,0x80,0x00,0x00,0x80,0xE0,0xC0,0xF0,0x40,0x98,0x40,0x8C,-2-0x40,0x86,0xC0,0xC3,0x80,0xC1,0x00,0x00,0x80,0x40,0xC0,0xC0,0x40,0x84,0x40,0x84,-3-0x40,0x84,0xC0,0xFF,0x80,0x7B,0x00,0x00,0x00,0x0C,0x00,0x0E,0x00,0x0B,0x80,0x89,-4-0xC0,0xFF,0xC0,0xFF,0x00,0x88,0x00,0x00,0xC0,0x47,0xC0,0xC7,0x40,0x84,0x40,0x84,-5-0x40,0x8C,0x40,0xFC,0x40,0x78,0x00,0x00,0x00,0x7F,0x80,0xFF,0xC0,0x84,0x40,0x84,-6-0x40,0x84,0x00,0xFC,0x00,0x78,0x00,0x00,0xC0,0x00,0xC0,0x00,0x40,0xF0,0x40,0xF8,-7-0x40,0x0C,0xC0,0x07,0xC0,0x03,0x00,0x00,0x80,0x7B,0xC0,0xFF,0x40,0x84,0x40,0x84,-8-0x40,0x84,0xC0,0xFF,0x80,0x7B,0x00,0x00,0x80,0x03,0xC0,0x87,0x40,0x84,0x40,0x84,-9-0x40,0xC4,0xC0,0x7F,0x80,0x3F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x63,-:-0x00,0x63,0x00,0x00,0x00,0x00,0x00,0x00,};ucharcodeNUM2[]={0x00,0x00,0x7f,0x80,0xff,0xc0,0x82,0x40,-0-0x8c,0x40,0x90,0x40,0xff,0xc0,0x7f,0x80,0x00,0x00,0x00,0x00,0x20,0x40,0x60,0x40,-1-0xff,0xc0,0xff,0xc0,0x00,0x40,0x00,0x40,0x00,0x00,0x41,0xc0,0xc3,0xc0,0x86,0x40,-2-0x8c,0x40,0x98,0x40,0xf0,0xc0,0x60,0xc0,0x00,0x00,0x40,0x80,0xc0,0xc0,0x88,0x40,-3-0x88,0x40,0x88,0x40,0xff,0xc0,0x77,0x80,0x00,0x00,0x0c,0x00,0x1c,0x00,0x34,0x00,-4-0x64,0x40,0xff,0xc0,0xff,0xc0,0x04,0x40,0x00,0x00,0xf8,0x80,0xf8,0xc0,0x88,0x40,-5-0x88,0x40,0x8c,0x40,0x8f,0xc0,0x87,0x80,0x00,0x00,0x3f,0x80,0x7f,0xc0,0xc8,0x40,-6-0x88,0x40,0x88,0x40,0x0f,0xc0,0x07,0x80,0x00,0x00,0xc0,0x00,0xc0,0x00,0x83,0xc0,-7-0x87,0xc0,0x8c,0x00,0xf8,0x00,0xf0,0x00,0x00,0x00,0x77,0x80,0xff,0xc0,0x88,0x40,-8-0x88,0x40,0x88,0x40,0xff,0xc0,0x77,0x80,0x00,0x00,0x70,0x00,0xf8,0x40,0x88,0x40,-9-0x88,0x40,0x88,0xc0,0xff,0x80,0x7f,0x00,0x00,0x00,0x00,0xc0,0x01,0x80,0x03,0x00,--0x06,0x00,0x0c,0x00,0x18,0x00,0x30,0x00,};unitdisp1,disp2,key1,key2;unitii,jj;uniti,sw,xz;voidDelay(unitms){ms=ms*3;while(--ms);}voidnum_led(intkk,inttt){intjj;for(jj=0;jj201+xz){BUFFER[0]=0;BUFFER[1]=BUFFER[1]+1;if(BUFFER[1]==60){BUFFER[1]=0;BUFFER[2]=BUFFER[2]+1;if(BUFFER[2]==60){BUFFER[2]=0;BUFFER[3]=BUFFER[3]+1;if(BUFFER[3]==24){BUFFER[3]=0;BUFFER[4]=BUFFER[4]+1;if(BUFFER[4]M[BUFFER[5]-1]){BUFFER[4]=1;BUFFER[5]=BUFFER[5]+1;if(BUFFER[5]12){BUFFER[5]=1;BUFFER[6]=BUFFER[6]+1;if(BUFFER[6]99){BUFFER[6]=0;M[1]=M[1]-1;}}}}}}}}voidintersvr0(void)interrupt0{sw=1;}voidmain(void){xz=8;key1=1;key2=0;EA=1;IT0=1;EX0=1;IT1=1;ET0=1;TMOD=0x11;TH0=-5000256;TL0=-5000%256;TR0=1;for(;;){Delay(10);if(sw==1){display_clock();sw=0;}}}四,運行效果從開機，調整到最后完成。

關鍵字標籤：high power led manufacturers