Living Architecture Fall 2009 Pratt

GOAL: Gain a better control over displayed colors and also limiting the displayed colors to Blue, Red and maybe Yellow (Orange)

PROCESS: Added the wire that connects white/common anode of the LED to the Digital Pin #13

*In the process it was also discovered that wires were not properly connected and this was the reason for the BLUE component not to show up. In the new system all the circuits are continuous.

RESULT: As seen in the Video above our LED displays four different colors which do utilize all three components: RED, GREEN and BLUE.

The ultimate goal of this tutorial, which was to display only three specific colors was not yet reached but significant improvement in display control was made.

CODE:

/*
* LilyPad tutorial: color (RGB LEDs)
*
* Uses a LilyPad RGB LED module to play with
* dynamic colored light. See this web color chart
* for the (Red,Green,Blue) values of different colors:
* http://www.visibone.com/colorlab/
*/

int ledPin = 13; // LED is connected to digital pin 13
int redPin = 11; // R petal on RGB LED module connected to digital pin 11
int greenPin = 9; // G petal on RGB LED module connected to digital pin 9
int bluePin = 10; // B petal on RGB LED module connected to digital pin 10

void setup()
{
pinMode(ledPin, OUTPUT); // sets the ledPin to be an output
pinMode(redPin, OUTPUT); // sets the redPin to be an output
pinMode(greenPin, OUTPUT); // sets the greenPin to be an output
pinMode(bluePin, OUTPUT); // sets the bluePin to be an output
}

void loop() // run over and over again
{
// Basic colors:
color(255, 0, 0); // turn the RGB LED red
delay(1000); // delay for 1 second
color(0,255, 0); // turn the RGB LED green
delay(1000); // delay for 1 second
color(0, 0, 255); // turn the RGB LED blue
delay(1000); // delay for 1 second

// Example blended colors:
color(255,255,0); // turn the RGB LED yellow
delay(1000); // delay for 1 second
color(255,255,255); // turn the RGB LED white
delay(1000); // delay for 1 second
color(128,0,255); // turn the RGB LED purple
delay(1000); // delay for 1 second
color(0,0,0); // turn the RGB LED off
delay(1000); // delay for 1 second
}

void color (unsigned char red, unsigned char green, unsigned char blue) // the color generating function
{
analogWrite(redPin, 255-red);
analogWrite(bluePin, 255-blue);
analogWrite(greenPin, 255-green);
}

SOURCE:
http://web.media.mit.edu/~leah/LilyPad/

Labels: K.A.A.S., Living Architecture, Pratt, Responsive Architecture