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698 lines
15 KiB
Plaintext
698 lines
15 KiB
Plaintext
/*
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This example reads three analog sensors (potentiometers are easiest)
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and sends their values serially. The Processing and Max/MSP programs at the bottom
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take those three values and use them to change the background color of the screen.
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The circuit:
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* potentiometers attached to analog inputs 0, 1, and 2
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http://www.arduino.cc/en/Tutorial/VirtualColorMixer
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created 2 Dec 2006
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by David A. Mellis
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modified 14 Apr 2009
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by Tom Igoe and Scott Fitzgerald
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*/
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const int redPin = 0; // sensor to control red color
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const int greenPin = 1; // sensor to control green color
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const int bluePin = 2; // sensor to control blue color
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void setup()
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{
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Serial.begin(9600);
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}
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void loop()
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{
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Serial.print(analogRead(redPin));
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Serial.print(",");
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Serial.print(analogRead(greenPin));
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Serial.print(",");
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Serial.println(analogRead(bluePin));
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}
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/* Processing code for this example
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import processing.serial.*;
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float redValue = 0; // red value
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float greenValue = 0; // green value
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float blueValue = 0; // blue value
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Serial myPort;
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void setup() {
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size(200, 200);
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// List all the available serial ports
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println(Serial.list());
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// I know that the first port in the serial list on my mac
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// is always my Arduino, so I open Serial.list()[0].
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// Open whatever port is the one you're using.
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myPort = new Serial(this, Serial.list()[0], 9600);
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// don't generate a serialEvent() unless you get a newline character:
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myPort.bufferUntil('\n');
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}
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void draw() {
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// set the background color with the color values:
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background(redValue, greenValue, blueValue);
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}
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void serialEvent(Serial myPort) {
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// get the ASCII string:
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String inString = myPort.readStringUntil('\n');
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if (inString != null) {
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// trim off any whitespace:
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inString = trim(inString);
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// split the string on the commas and convert the
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// resulting substrings into an integer array:
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float[] colors = float(split(inString, ","));
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// if the array has at least three elements, you know
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// you got the whole thing. Put the numbers in the
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// color variables:
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if (colors.length >=3) {
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// map them to the range 0-255:
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redValue = map(colors[0], 0, 1023, 0, 255);
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greenValue = map(colors[1], 0, 1023, 0, 255);
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blueValue = map(colors[2], 0, 1023, 0, 255);
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}
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}
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}
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*/
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/* Max/MSP patch for this example
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{
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"text" : "Virtual color mixer\n\nThis patch takes a string, containing three comma-separated ASCII formatted numbers from 0 to 1023, with a carriage return and linefeed at the end. It converts the string to three integers and uses them to set the background color.\n\n created 2 Dec 2006\n by David A. Mellis\nmodified 14 Apr 2009\nby Scott Fitzgerald and Tom Igoe",
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}
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, {
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"text" : "Click here to get a list of serial ports",
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}
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}
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}
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, {
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}
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, {
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*/
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