L.E.D. Display Panel

This user-submitted script by Richard Maloney allows you to have messages "written" across a display made to emulate an LED sign. The effect is quite unique as seen above!

read below for installation instructions. If you have any other questions, contact Richard.

Installation Instructions:

1: Copy and paste the following HTML at the end of the BODY section of your page:
Select all...

//____________________CONFIGURATION AREA_____________________

// THIS LED SCRIPT TAKES UP 200 pixels HORIZONTAL and 28 pixels VERTICAL -Have Fun :-)
// YOUR MESSAGE GOES ON NEXT 4 LINES DOWN.
// ALLOWABLE CHARACTERS ARE: A-Z, Period, space, comma, numerals, question mark and 'message codes'.
// THE 4 MESSAGE CODES:
// @=PAUSE FOR 3 SECONDS,  #=FLASH FOR 3 SECONDS, ^=SCROLL UP EFFECT, _=SUN EFFECT, $=SPLIT EFFECT

//EXAMPLE: var message="_  Dynamic^^   Drive!  #  For  the best dhtml scripts...    www.dynamic.drive.com    ";

var message="L.E.D. Panel  written^$^ by Richard Maloney    ENJOY!...   _";

var LEDonColor='Red';        //color of the LEDs when they are on
var LEDoffColor='#7D0605';   //color of the LEDs when they are off
startXPos=50;                //start of horizontal position eg. startXPos=20; places the leds 20 pixels from left
startYPos=10;
						//start of vertical position
//____________________END CONFIGURATION AREA__________________

var IE=(document.all) ? true:false; var NS=(document.layers) ? true:false; var W3C=((document.getElementById) && (!IE)) ? true:false;
var d=document; if (window.offscreenBuffering) window.offscreenBuffering = true;
function getCSS(id) {
	if (IE) 	 return d.all[id]			//IE
	else if (NS) return d.layers[id]		//NS4
	else		 return d.getElementById(id)//W3C
}
var alphabet=new Array(44);
alphabet[0]=new Array("0111111","1001000","1001000","1001000","0111111");	alphabet[1]=new Array("1111111","1001001","1001001","1001001","0110110");//B
alphabet[2]=new Array("0111110","1000001","1000001","1000001","0100010");	alphabet[3]=new Array("1111111","1000001","1000001","1000001","0111110");//D
alphabet[4]=new Array("1111111","1001001","1001001","1001001");				alphabet[5]=new Array("1111111","1001000","1001000","1001000");//F
alphabet[6]=new Array("0111110","1000001","1000001","1001001","0101110");	alphabet[7]=new Array("1111111","0001000","0001000","0001000","1111111");//H
alphabet[8]=new Array("1000001","1111111","1000001");						alphabet[9]=new Array("0000110","0000001","0000001","0000001","1111110");//J
alphabet[10]=new Array("1111111","0001000","0010100","0100010","1000001");	alphabet[11]=new Array("1111111","0000001","0000001","0000001");//L
alphabet[12]=new Array("1111111","0010000","0001000","0010000","1111111");	alphabet[13]=new Array("1111111","0010000","0001000","0000100","1111111");//N
alphabet[14]=new Array("0111110","1000001","1000001","1000001","0111110");	alphabet[15]=new Array("1111111","1001000","1001000","1001000","0110000");//P
alphabet[16]=new Array("0111110","1000001","1000001","1000011","0111111");	alphabet[17]=new Array("1111111","1001000","1001100","1001010","0110001");//R
alphabet[18]=new Array("0110010","1001001","1001001","1001001","0100110");	alphabet[19]=new Array("1000000","1000000","1111111","1000000","1000000");//T
alphabet[20]=new Array("1111110","0000001","0000001","0000001","1111110");	alphabet[21]=new Array("1110000","0001100","0000011","0001100","1110000");//V
alphabet[22]=new Array("1111110","0000001","0000010","0001100","0000010","0000001","1111110"); alphabet[23]=new Array("1100011","0010100","0001000","0010100","1100011");//X
alphabet[24]=new Array("1100000","0010000","0001111","0010000","1100000");	alphabet[25]=new Array("1000011","1000101","1001001","1010001","1100001");//Z
alphabet[26]=new Array("0000000","0000000","0000000","0000000");			alphabet[27]=new Array("0000000","0000001","0000000","0000000","0000000");//PERIOD
alphabet[28]=new Array("0000000","0000000","1111101","0000000","0000000");//!
alphabet[29]=new Array("0100001","1111111","0000001");						alphabet[30]=new Array("0100011","1000101","1001001","1001001","0110001");//2
alphabet[31]=new Array("0100010","1001001","1001001","1001001","0110110");	alphabet[32]=new Array("0001000","0011000","0101000","1111111","0001000");//4
alphabet[33]=new Array("1111001","1001001","1001001","1001001","1000110");	alphabet[34]=new Array("0111110","1001001","1001001","1001001","0100110");//6
alphabet[35]=new Array("1000011","1000100","1001000","1110000");			alphabet[36]=new Array("0110110","1001001","1001001","1001001","0110110");//8
alphabet[37]=new Array("0110010","1001001","1001001","1001001","0111110");	alphabet[38]=new Array("0000001","0000010","0000000");//COMMA
alphabet[39]=new Array("XXXXXXX");//PAUSE ( @ )
alphabet[40]=new Array("YYYYYYY");//FLASH ( # )
alphabet[41]=new Array("DDDDDDD");//SCROLL UP EFFECT ( ^ )
alphabet[42]=new Array("SSSSSSS");//SUN EFFECT ( _ )
alphabet[43]=new Array("0100000","1000000","1001101","1001000","0110000");//?
alphabet[44]=new Array("QQQQQQQ");//SPLIT EFFECT ( $ )

message=message.toUpperCase();					//make message uppercase
var messageArray=new Array();					//make messageArray-an array of the letters in the message
var columnCount=0; 								//variable to count columns in messageArray.length
for (i=0; i<message.length; i++){				//iterate through the characters in the message
	letterNum=message.charCodeAt(i);			//assign proper letter code (alphabet array)
	if ((letterNum>=65) && (letterNum<=90)) temp=letterNum-65; //letters
	else if (letterNum==46) temp=27;			//.
	else if (letterNum==32)	temp=26;			//space
	else if (letterNum==33)	temp=28;			//!
	else if ((letterNum>=49) && (letterNum<=57)) temp=letterNum-20;	//[1-9]
	else if (letterNum==48)	temp=14;			//zero
	else if (letterNum==63) temp=43;			//?
	else if (letterNum==44) temp=38;			//,
	else if (letterNum==64) temp=39;			//pause
	else if (letterNum==35) temp=40;			//flash effect
	else if (letterNum==94) temp=41;			//scroll up effect
	else if (letterNum==95) temp=42;			//sunrise effect
	else if (letterNum==36) temp=44;			//split effect
	else continue;
	for (ii=0; ii<alphabet[temp].length;ii++){ messageArray[columnCount]=alphabet[temp][ii];columnCount++;}
	if ((temp!=39) && (temp!=40) && (temp!=41)) {messageArray[columnCount]="0000000";columnCount++;}
}
//make 'led screen' with block 0-49 on row 1, block 50-99 on row 2, block 100-149 on row 3, etc..
var b='';
for (var i=0; i<350; i++){//columns 50 columns x 7 rows
	rowPos=0+3*(i>49)+3*(i>99)+3*(i>149)+3*(i>199)+3*(i>249)+3*(i>299);
	colPos=0+150*(i>49)+150*(i>99)+150*(i>149)+150*(i>199)+150*(i>249)+150*(i>299);
	b+= (NS) ? '<LAYER NAME="block' + i + '" LEFT="' + (startXPos+i*3-colPos) + '" TOP="' + (startYPos+rowPos) + '" VISIBILITY="show" WIDTH="2" HEIGHT="2" BGCOLOR="' + LEDoffColor + '"></LAYER>' : '<div id="block' + i + '" style="position:absolute; left:' + (startXPos+i*3-colPos) + 'px; top:' + (startYPos+rowPos) + 'px; background-color:' + LEDoffColor +'; height: 2px; width: 2px;font-size:2px;"></div>';
}
document.write(b);
var columnCounter=0; 	//keep track of postion of messageArray
var bb=new Array();		//store particular LED's dom element here
	if (NS) { for (var i=0; i<350; i++) { bb[i]=getCSS("block"+i)}}
	else {for (var i=0; i<350; i++){ bb[i]=getCSS("block"+i).style;}}
var isOn=new Array();for (var i=0; i<350; i++){ isOn[i]=0;}	//keep track on on/off status of particular LED
onArray=new Array(); var onCount=0; //array size counter
function scroll(){
	onCount=0;
	if (NS) { for (var i=0; i<301; i+=50){ if (isOn[i]==1) { bb[i].bgColor=LEDoffColor; isOn[i]=0;} for (var ii=1; ii<50; ii+=7){
				temp=i+ii;temp1=temp+1;temp2=temp+2;temp3=temp+3;temp4=temp+4;temp5=temp+5;temp6=temp+6;
				if (isOn[temp]==1) {bb[temp].bgColor=LEDoffColor;  isOn[temp]=0; bb[temp-1].bgColor=LEDonColor; isOn[temp-1]=1;}
				if (isOn[temp1]==1) {bb[temp1].bgColor=LEDoffColor;  isOn[temp1]=0; bb[temp].bgColor=LEDonColor; isOn[temp]=1;}
				if (isOn[temp2]==1) {bb[temp2].bgColor=LEDoffColor;  isOn[temp2]=0; bb[temp+1].bgColor=LEDonColor; isOn[temp+1]=1;}
				if (isOn[temp3]==1) {bb[temp3].bgColor=LEDoffColor;  isOn[temp3]=0; bb[temp2].bgColor=LEDonColor; isOn[temp2]=1;}
				if (isOn[temp4]==1) {bb[temp4].bgColor=LEDoffColor;  isOn[temp4]=0; bb[temp3].bgColor=LEDonColor; isOn[temp3]=1;}
				if (isOn[temp5]==1) {bb[temp5].bgColor=LEDoffColor;  isOn[temp5]=0; bb[temp4].bgColor=LEDonColor; isOn[temp4]=1;}
				if (isOn[temp6]==1) {bb[temp6].bgColor=LEDoffColor;  isOn[temp6]=0; bb[temp5].bgColor=LEDonColor; isOn[temp5]=1;}
	}}}
	else { for (var i=0; i<301; i+=50){ if (isOn[i]==1) { bb[i].backgroundColor=LEDoffColor; isOn[i]=0;} for (var ii=1; ii<50; ii+=7){
				temp=i+ii;temp1=temp+1;temp2=temp+2;temp3=temp+3;temp4=temp+4;temp5=temp+5;temp6=temp+6;
				if (isOn[temp]==1) {bb[temp].backgroundColor=LEDoffColor;  isOn[temp]=0; bb[temp-1].backgroundColor=LEDonColor; isOn[temp-1]=1;}
				if (isOn[temp1]==1) {bb[temp1].backgroundColor=LEDoffColor;  isOn[temp1]=0; bb[temp].backgroundColor=LEDonColor; isOn[temp]=1;}
				if (isOn[temp2]==1) {bb[temp2].backgroundColor=LEDoffColor;  isOn[temp2]=0; bb[temp+1].backgroundColor=LEDonColor; isOn[temp+1]=1;}
				if (isOn[temp3]==1) {bb[temp3].backgroundColor=LEDoffColor;  isOn[temp3]=0; bb[temp2].backgroundColor=LEDonColor; isOn[temp2]=1;}
				if (isOn[temp4]==1) {bb[temp4].backgroundColor=LEDoffColor;  isOn[temp4]=0; bb[temp3].backgroundColor=LEDonColor; isOn[temp3]=1;}
				if (isOn[temp5]==1) {bb[temp5].backgroundColor=LEDoffColor;  isOn[temp5]=0; bb[temp4].backgroundColor=LEDonColor; isOn[temp4]=1;}
				if (isOn[temp6]==1) {bb[temp6].backgroundColor=LEDoffColor;  isOn[temp6]=0; bb[temp5].backgroundColor=LEDonColor; isOn[temp5]=1;}
	}}}
	temp=messageArray[columnCounter]; flag=temp.charAt(0);//GET NEW COLUMN
	if (temp.charAt(1)=="1") {isOn[99]=1;} if (temp.charAt(2)=="1") {isOn[149]=1} if (temp.charAt(3)=="1") {isOn[199]=1}
	if (temp.charAt(4)=="1") {isOn[249]=1} if (temp.charAt(5)=="1") {isOn[299]=1} if (temp.charAt(6)=="1") {isOn[349]=1}
	if (flag=="0") {} else if (flag=="1") {isOn[49]=1;} else if (flag=="X") {pauseScroll();} else if (flag=="Y") {flashScroll();}
	else if (flag=="D") {dropEffect();} else if (flag=="S") {sunRiseEffect();} else if (flag=="Q") {splitEffect();}
	columnCounter++; if(columnCounter==columnCount) columnCounter=0;
}
//______________pause effect________________
function pauseScroll(){ clearInterval(loop); setTimeout("LEDinit()",3000);}
//______________onArray Section_____________
onArray=new Array(); var onCount=0; //array size counter
function makeOnArray(){ clearInterval(loop); onCount=0;	for (var i=0; i<700; i++){if (isOn[i]==1) {onArray[onCount]=i; onCount++;};}//make onArray of 'on' LEDS
}//_________________________________
//_______________flash effect_______________
var flashCount=0;
function flashScroll(){	makeOnArray(); flashCount=0; if (NS) {setTimeout("flashItNS()",250);} else {setTimeout("flashIt()",250);}}
function flashItNS(){ flashCount++;
	if (flashCount<14) {
		if (flashCount % 2 == 0){ for (var i=0; i<onCount; i++){ isOn[onArray[i]]=0;bb[onArray[i]].bgColor=LEDoffColor;}}
		else {for (var i=0; i<onCount; i++){isOn[onArray[i]]=1;bb[onArray[i]].bgColor=LEDonColor;}}
		setTimeout("flashItNS()",250);
	}
	else {flashCount=0; setTimeout("LEDinit()",250);}
}
function flashIt(){ flashCount++;
	if (flashCount<14) {
		if (flashCount % 2 == 0){ for (var i=0; i<onCount; i++){ isOn[onArray[i]]=0;bb[onArray[i]].backgroundColor=LEDoffColor;}}
		else {for (var i=0; i<onCount; i++){isOn[onArray[i]]=1;bb[onArray[i]].backgroundColor=LEDonColor;}}
		setTimeout("flashIt()",250);
	}
	else {flashCount=0; setTimeout("LEDinit()",250);}
}//_________________________________
//____________scroll up effect______________
dropArray=new Array();
function dropEffect(){makeOnArray(); for (var i=0; i<onCount; i++){ dropArray[i]=onArray[i]; } if (NS) {dropItNS();} else {dropIt();}}
var dropCount=0;
function dropItNS(){
	if (dropCount<7){for (var i=0; i<onCount; i++){	bb[dropArray[i]].bgColor=LEDoffColor; }
		for (var i=0; i<onCount; i++){ temp=dropArray[i]; temp-=50;if (temp<0) temp+=350;bb[temp].bgColor=LEDonColor; dropArray[i]=temp;}
		dropCount++; setTimeout("dropItNS()",100);
	} else {dropCount=0;setTimeout("LEDinit()",100);}
}//_________________________________
function dropIt(){
	if (dropCount<7){ for (var i=0; i<onCount; i++){ bb[dropArray[i]].backgroundColor=LEDoffColor; }
		for (var i=0; i<onCount; i++){ temp=dropArray[i]; temp-=50; if (temp<0) temp+=350; bb[temp].backgroundColor=LEDonColor; dropArray[i]=temp;}
		dropCount++; setTimeout("dropIt()",100);
	} else {dropCount=0;setTimeout("LEDinit()",100);}
}//_________________________________
//____________sunrise effect________________
sunRiseCounter=0;sunRiseArray=new Array();
sunRiseArray[0]=new Array(50,101,102,103,154,155,156,207,208,259,260,261,212,163,164,115,116,117,168,169,170,221,222,223,274,275,276,227,228,179,180,131,132,83,134,135,186,187,238,239,240,241,292,293,344,295,296,247,198);//Hills
sunRiseArray[1]=new Array(224,225,226); sunRiseArray[2]=new Array(174,175,176,177); sunRiseArray[3]=new Array(173,124,125,126,127,128,178); sunRiseArray[4]=new Array(172,123,74,75,76,77,129); sunRiseArray[5]=new Array(171,122,73,24,25,26,27,78,79,130);
function sunRiseEffect() { makeOnArray(); for (var i=0; i<onCount; i++){ isOn[onArray[i]]=0; if (!NS) {bb[onArray[i]].backgroundColor=LEDoffColor;}	else {bb[onArray[i]].bgColor=LEDoffColor;}}
	setTimeout("riseEffectUp()",1000);}
function riseEffectUp() {
	if (!NS) { for (var ii=0; ii<sunRiseArray[sunRiseCounter].length; ii++) {isOn[sunRiseArray[sunRiseCounter][ii]]=1;bb[sunRiseArray[sunRiseCounter][ii]].backgroundColor=LEDonColor;}}
	else {for (var ii=0; ii<sunRiseArray[sunRiseCounter].length; ii++) {isOn[sunRiseArray[sunRiseCounter][ii]]=1;bb[sunRiseArray[sunRiseCounter][ii]].bgColor=LEDonColor;}}
	sunRiseCounter++; if (sunRiseCounter>5) {sunRiseCounter=5;setTimeout("riseEffectDown()",2000);}	else {setTimeout("riseEffectUp()",250);}}
function riseEffectDown() {
	if (!NS) {for (var ii=0; ii<sunRiseArray[sunRiseCounter].length; ii++) {isOn[sunRiseArray[sunRiseCounter][ii]]=0;bb[sunRiseArray[sunRiseCounter][ii]].backgroundColor=LEDoffColor;}}
	else {for (var ii=0; ii<sunRiseArray[sunRiseCounter].length; ii++) {isOn[sunRiseArray[sunRiseCounter][ii]]=0;bb[sunRiseArray[sunRiseCounter][ii]].bgColor=LEDoffColor;}}
	sunRiseCounter--; if (sunRiseCounter<1) {sunRiseCounter=0;setTimeout("LEDinit()",1500);}
	else {setTimeout("riseEffectDown()",250);}
}//____________________________________
//____________split scroll effect___________
var splitCount=0;
function splitEffect() { makeOnArray(); for (var i=0; i<onCount; i++) { dropArray[i]=onArray[i]; }
	if (NS) {setTimeout("splitNS()",55);} else if (IE) {setTimeout("splitIt()",55);} else {setTimeout("splitIt()",100);}
}
function splitIt(){ for (i=0;i<onCount;i++){ temp=dropArray[i];
	if (temp<150) { if (temp==100) {bb[temp].backgroundColor=LEDoffColor; temp=149; bb[temp-1].backgroundColor=LEDonColor;}
			else if (temp==50) {bb[temp].backgroundColor=LEDoffColor; temp=99; bb[temp-1].backgroundColor=LEDonColor;}
			else if (temp==0) {bb[temp].backgroundColor=LEDoffColor; temp=49; bb[temp-1].backgroundColor=LEDonColor;}
			else {bb[temp].backgroundColor=LEDoffColor; bb[temp-1].backgroundColor=LEDonColor;}
			dropArray[i]=temp-1; }
		else { if (temp==199) {bb[temp].backgroundColor=LEDoffColor; temp=200; bb[temp+1].backgroundColor=LEDonColor;}
			else if (temp==349) {bb[temp].backgroundColor=LEDoffColor; temp=300; bb[temp+1].backgroundColor=LEDonColor;}
			else if (temp==299) {bb[temp].backgroundColor=LEDoffColor; temp=250; bb[temp+1].backgroundColor=LEDonColor;}
			else if (temp==249) {bb[temp].backgroundColor=LEDoffColor; temp=200; bb[temp+1].backgroundColor=LEDonColor;}
			else {bb[temp].backgroundColor=LEDoffColor; bb[temp+1].backgroundColor=LEDonColor;}
			dropArray[i]=temp+1; }
	} splitCount++; if (splitCount<49) {if (IE) {setTimeout("splitIt()",55);} else {setTimeout("splitIt()",100);} } else {splitCount=0; LEDinit();}
}
function splitNS(){
	for (i=0;i<onCount;i++){ temp=dropArray[i];
		if (temp<150) { if (temp==100) {bb[temp].bgColor=LEDoffColor; temp=149; bb[temp-1].bgColor=LEDonColor;}
			else if (temp==50) {bb[temp].bgColor=LEDoffColor; temp=99; bb[temp-1].bgColor=LEDonColor;}
			else if (temp==0) {bb[temp].bgColor=LEDoffColor; temp=49; bb[temp-1].bgColor=LEDonColor;}
			else {bb[temp].bgColor=LEDoffColor; bb[temp-1].bgColor=LEDonColor;}
			dropArray[i]=temp-1; }
		else { if (temp==199) {bb[temp].bgColor=LEDoffColor; temp=200; bb[temp+1].bgColor=LEDonColor;}
			else if (temp==349) {bb[temp].bgColor=LEDoffColor; temp=300; bb[temp+1].bgColor=LEDonColor;}
			else if (temp==299) {bb[temp].bgColor=LEDoffColor; temp=250; bb[temp+1].bgColor=LEDonColor;}
			else if (temp==249) {bb[temp].bgColor=LEDoffColor; temp=200; bb[temp+1].bgColor=LEDonColor;}
			else {bb[temp].bgColor=LEDoffColor; bb[temp+1].bgColor=LEDonColor;}
			dropArray[i]=temp+1; }
	} splitCount++; if (splitCount<49) {setTimeout("splitNS()",55);} else {splitCount=0; LEDinit();}
}//___________________________________
function LEDinit(){if (NS) {loop=setInterval("scroll()",55);} else if (IE){loop=setInterval("scroll()",55);} else {loop=setInterval("scroll()",100);}}
</script>

2: You'll also have to insert a bit of code in the actual BODY tag: onload="LEDinit()". So, your BODY tag will lok like:
<BODY onload="LEDinit()">