For me, after a while the RGB LED starts to change color by it’s own. Is it ment to be like that?
If it is ment to be like that can you help me fix the code so it doesent make that? :)

// Nisse from Sweden :)

Thanks!
Rick.

void loop() {
  int r = analogRead(redSlider) / 4;
  int g = analogRead(grnSlider) / 4;
  int b = analogRead(bluSlider) / 4;

  analogWrite( redPin, r );
  analogWrite( grnPin, g );
  analogWrite( bluPin, b );
}

I tend to think in terms of input->output flows. It sounds like there are two major flows. First, there’s the immediate “autonomous” response of triggering the LEDs based on the various inputs. This is a totally stand-alone Arduino sketch that could run by itself. And it might be a good starting point for getting everything all together and working.

Then there’s the “Arduino-as-input-device” flow where the Arduino reads the inputs, sends them to Max/MSP over its serial/USB port, and Max outputs sound to speakers. I assume the Max patch is doing some sort of algorithmic generation of sound. If you’re happy with just triggering lofi samples instead, you could add a Waveshield on top of the Arduino and have it play the sounds directly.

But if you don’t do that, you’ve got two cables running from the computer to each Orb: a USB cable and a speaker cable.

This project sounds really cool. Send me some links when you get it up and running!

Loving the project. I’m making use of the Orb as part of a project which involves IR sensors, piezos and the LED orb.

Basically the project is as follows:

– There will be two orbs set up at opposite, diagonal corners of a square space. Two IR sensors will be set-up to detect the user’s proximity from the orb(s).
– As the user approaches the orb(s), the LEDs trigger intermittently; the closer the user to the orb, the less delay will be between (LED) flashes. The IR controls the strength of the LEDs and will also trigger synchronised sound.
– When the user is within a certain range, the sound/light will turn from intermittent to static.
– At this point, the user will be within touching range and piezos will be attached to the orb. Touching the orb will trigger additional sounds and possibly random LED value changes.
– The Colour of the LED’s will only change upon touch.

My question is will the Arduino be able to handle 2 analog IR inputs, 4 analog piezo inputs and 6 digital LED outputs, 2 loudspeaker outputs, all doing the above, hopefully, through Max?!

I think the only way of working an orb in the opposite corner is running a series of long cables from a second, slave breadboard to the master breadboard/arduino?

Any thoughts or tips? Anything that I’ve missed potentially?

(I plan on programming using Maxuino)
LED’s = 2.5v/4v fwd, 5v Rev
IR = Sharp 2YOA21
Piezo = Piezo transducer 35mm/28kHz/Max. 30V. input p-p.

i am a production LX a who is trying to find or make a whole lot of color changing orbs which could all be controled remotley and what is on this page looks like the kind of thing i am looking for. if they could be DMX controlled it would be great but they dont have to be. the only thing is that the orbs have to be able to give at least 50-60 watt equivalent. if anyone has any ideas of how to help me out it would be great

This was my first foray into Arduino and I just wanted to say thanks for getting me started. Can’t wait to see what else I can do with this thing.

  font = loadFont("Futura-MediumItalic-48.vlw");

To create this font file, go to the “Tools” menu and choose “Create Font…”. Pick whatever font you want (I picked 48-point italic Futura). Note the filename and click “OK”. Then go to that “loadFont()” line and change the filename to match your choice.

If you want the exact font file I used, you can download it here:
http://todbot.com/processing/http_rgb_led/data/Futura-MediumItalic-48.vlw
This font file goes in the “data” directory of your sketch. When you use “Create Font…” it sticks the font files in the “data” dir for you.

For more information on fonts in Processing, see:
http://processing.org/reference/PFont.html