Posts Tagged ‘led’

Arduino + HDD + ESC Progress.

by Dave Johnson

February 21 2011

I got everything up and running, thanks to some help from arduino.cc. I was able to spin it up to full speed,  cut the slice in the hard disk plater,  and even get a small POV effect with an RGB led. what’s left on the list is a hall effect sensor and some RGB led tape.

tags: arduino, esc, hdd
Posted in Arduino, Programming
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3x3x3 Led Cube Video

by Dave Johnson

February 21 2011

tags: arduino, cube, led
Posted in Arduino
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Fixed my 3x3x3 led cube

by Dave Johnson

February 16 2011

I haven’t really done much with my LED Cube since I built it a year ago, so it wound up in my parts box. Despite my best efforts not to smash it, I eventually did. Last night I decided to salvage it and see if I could true it up and make it a perfect square again.

I had to fix a few solder points but it’s back up and working again and even adapted my vu meter code to it with a some small changes.

and here are some pictures from when I built it a year ago.



tags: arduino, cube, led
Posted in Arduino
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Arduino RGB LED + Winamp

by Dave Johnson

February 14 2011

Yesterday I saw this posted by majordecibel on the arduino.cc forum. The main difference between mine and his is that i have no hardware.  I’m using the same setup as this post except I created a new mod in the SVIS.dll.

the color is on a fade loop, and the brightness is determined by the music. pretty basic code, basic enough that I was able to build it in a few hours. when the delay is below 50ms the color transitions are rough. Also in my code I have it mapped to a min value of  80. this is so that when I have the Arduino unit behind my monitor it doesn’t bug the hell out of me.

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int blue = 3;
int green = 5;
int red = 6;
int pwr = 11;
long timer;
const long muxInterval = 20;
int mux = 0;
int color[3] = {0,255,255};
int data[10]; 
float percent;
void setup()
{
   Serial.begin(57600);
  pinMode(blue, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(red, OUTPUT);
  pinMode(pwr, OUTPUT);
  timer = millis();
}
 
 
void loop(){
 
 if (Serial.available() > 10) {
 byte i = Serial.read();
 
 if (int(i) == 255) {
 for (int c = 0; c <= 9; c++){
 data[c] = int(Serial.read());
}
 }
int total = ((data[2] + data[3]) / 2);
total = map(total,0,255,80,255);
//total = 200;
percent = total / 255.00;
 
   int redTotal =  ((color[2]*percent));
   int greenTotal = ((color[1]*percent));
   int blueTotal = ((color[0]*percent));
 
 
  analogWrite(pwr, total);
  analogWrite(red, color[2]);
  analogWrite(green, color[1]);
  analogWrite(blue, color[0]);
 
if (millis() - timer > muxInterval) { 
   timer = millis(); mux++; 
   if (mux > 1530){
     mux = 1;
   }
   if (mux >= 1 && mux <= 255) {
     color[2] -= 1;
   }
   if (mux >= 256 && mux <= 510) {
      color[0] += 1;
   }
   if (mux >= 511 && mux <= 765) {
     color[1] -= 1;
   }
   if (mux >= 766 && mux <= 1020) {
     color[2] += 1;
   }
   if (mux >= 1021 && mux <= 1275) {
     color[0] -= 1;
   }
   if (mux >= 1276 && mux <= 1530) {
     color[1] += 1;
   }
}
 }
}
tags: arduino, led, rgb
Posted in Arduino, Programming
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Arduino + Winamp vu meter

by Dave Johnson

February 9 2011

This is one of the pieces of code that I’ve delayed posting for a long time. For those that wanted it I’m deeply sorry that it has taken me this long.

This is a Script that really only works is you have all the pieces.

So first you need the plugin for winamp that Maceger provided to me.

http://www.macetech.com/wa502_sdk.zip

also my version is available on my download page

** for this to work you need to download and open the project in visual studio and do a search for “COM” and change it to your COM port of your computer. Then compile the dll, and put it into the  C:\Program Files\Winamp\Plugins folder ***

second you need softPWM (optional)

http://arduino.cc/forum/index.php/topic,19451.0.html

if you chose not to use it you will need to change SoftPWMSet to digitalWrite, and remove all SoftPWM code.

support topics on my project can be found at the fallowing links.

http://arduino.cc/forum/index.php/topic,40078.msg293360.html#msg293360

http://arduino.cc/forum/index.php/topic,27482.msg203610.html#msg203610

UPDATE:: source code.zip

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 /*#################################################
 ### --- Winamp + arduio vu meter ---- ###
 ### --- Copyright 2010 - Dave Johnson --- ###
 ###--- Dave@SilverCG.com - www.SilverCG.com --- ###
 ###_____________________________________________###
 ### --- this code includes a vu meter based off ###
 ### data from winamp and converts it to 3 rows ###
 ### of multiplexed leds. ---- ###
 #################################################*/
#include <SoftPWM.h>
 
#define DELAY 80
 
int colpins[] = {2,3,4,5,6,7,8,9,10};
 int rowpins[] = {11,12,13};
 int power = 1;
 //---------------------------------------------
 long timer;
 const long muxInterval = 10;
 int mux = 0;
 int full[27];
 float lvl;
 
void setup() {
 Serial.begin(57600);
// for (int pin=0; pin<9; pin++) {
// pinMode( colpins[pin], OUTPUT );
// }
 for (int pin=0; pin<3; pin++) {
 pinMode( rowpins[pin], OUTPUT );
 }
 timer = millis();
 
SoftPWMBegin();
 
  for (int i = 0; i < 9; i++){
    SoftPWMSet(colpins[i], 0);
  }
}
void loop(){
 
int divide = 5;
 //------------------------------------------------------------
 float total; // for calculations below. <>
 int data[9]; // raw serial data <>
 
if (Serial.available() >10) {
 byte i = Serial.read();
 if (int(i) == 255) {
 for (int c = 0; c < 9; c++){
 data[c] = int(Serial.read());
 
}
 }
 }
 // some math -------------
 
lvl = (data[0] + data[1] + data[2] + data[3] + data[4] + data[5] + data[6] + data[7] + data[8]) / 9;
 //lvl = (data[1] + data[2] + data[3]) / divide;
 //lvl2 = (data[0] + data[7] + data[8]) / divide;
 //lvl3 = (data[4] + data[5] + data[6]) / divide;
 // math end -----------------
 
// reset leds ---------------
 for (int i = 0; i < 27; i++){ full[i] = 0; } 
 
 int length = 5; // sets how long the tail is, so as the meter goes up there is 9 or less leds on at a times... 
 // feel free to change this to what you like. 
 // ------------------------------- 
 int mapvalue2; 
 int mapvalue = map(lvl, 0, 255, 0, 27); 
 if (mapvalue >= length){
 mapvalue2 = mapvalue - length + 1;
 }
 if (mapvalue < length) {
 mapvalue2 = 0;
 }
 for (int x = mapvalue2; x <= mapvalue; x++){
 full[x] = 1;
 }
 // set leds end--------------
 
// patterns feel free to change these to what ever you want the posiblities are endless. 0 - 26 is equel to 27 leds..
 
// int meterlist[9]= {full[0], full[1], full[2], full[13], full[14], full[15], full[16], full[17], full[26]};
// int meterlist2[9] = {full[5], full[4], full[3], full[12], full[11], full[20], full[19], full[18], full[25]};
// int meterlist3[9] = {full[6], full[7], full[8], full[9], full[10], full[21], full[22], full[23], full[24]};
//
//int meterlist[9]= {full[0], full[1], full[2], full[3], full[4], full[5], full[6], full[7], full[8]};
//int meterlist2[9] = {full[17], full[16], full[15], full[14], full[13], full[12], full[11], full[10], full[9]};
//int meterlist3[9] = {full[18], full[19], full[20], full[21], full[22], full[23], full[24], full[25], full[26]};
 
 
int meterlist[9]= {full[2], full[3], full[8], full[9], full[14], full[15], full[20], full[21], full[26]};
int meterlist2[9] = {full[1], full[4], full[7], full[10], full[13], full[16], full[19], full[22], full[25]};
int meterlist3[9] = {full[0], full[5], full[6], full[11], full[12], full[17], full[18], full[23], full[24]};
 
//int meterlist[9]= {full[0], full[6], full[12], full[18], full[5], full[11], full[17], full[23], full[26]};
//int meterlist2[9] = {full[1], full[7], full[13], full[19], full[4], full[10], full[16], full[22], full[26]};
//int meterlist3[9] = {full[2], full[8], full[14], full[20], full[3], full[9], full[15], full[21], full[26]};
 
//map to 9
//int meterlist[9]= {full[0], full[1], full[2], full[3], full[4], full[5], full[6], full[7], full[8]};
//int meterlist2[9]= {full[0], full[1], full[2], full[3], full[4], full[5], full[6], full[7], full[8]};
//int meterlist3[9]= {full[0], full[1], full[2], full[3], full[4], full[5], full[6], full[7], full[8]};
 
//int meterlist[9]= {full[26], full[16], full[14], full[4], full[2], full[8], full[10], full[20], full[22]};
//int meterlist2[9] = {full[24], full[18], full[12], full[6], full[0], full[6], full[12], full[18], full[24]};
//int meterlist3[9] = {full[22], full[20], full[10], full[8], full[2], full[4], full[14], full[16], full[26]};
 
//multiplex drawing.
 if (millis() - timer < muxInterval) { timer = millis(); mux++; if (mux > 2){
 mux = 0;
 }
 for (int i = 0; i <=8; i++){ 
 SoftPWMSet(colpins[i], 0);
 } digitalWrite(rowpins[0], LOW); 
 digitalWrite(rowpins[1], LOW); 
 digitalWrite(rowpins[2], LOW); 
 if (mux == 0) { for (int i = 8; i >= 0; i--) {
 if (meterlist[i] == 1){
 SoftPWMSet(colpins[i], power, true);
 digitalWrite(rowpins[0], HIGH);
 }
 
}
 }
 if (mux == 1) {
 
for (int i = 8; i >= 0; i--) {
 if (meterlist2[i] == 1){
 SoftPWMSet(colpins[i], power, true);
 digitalWrite(rowpins[1], HIGH);
 }
 
}
 }
 if (mux == 2) {
 
for (int i = 8; i >= 0; i--) {
 if (meterlist3[i] == 1){
 SoftPWMSet(colpins[i], power, true);
 digitalWrite(rowpins[2], HIGH);
 }
 
}
 }
 
}
 
}
tags: arduino, code, led
Posted in Arduino, Computers, Software
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