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92 lines
2.2 KiB
Plaintext
92 lines
2.2 KiB
Plaintext
/*
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* Dimmer
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* by David A. Mellis
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*
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* Demonstrates the sending data from the computer to the Arduino board,
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* in this case to control the brightness of an LED. The data is sent
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* in individual bytes, each of which ranges from 0 to 255. Arduino
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* reads these bytes and uses them to set the brightness of the LED.
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*
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* http://www.arduino.cc/en/Tutorial/Dimmer
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*/
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int ledPin = 9;
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void setup()
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{
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// begin the serial communication
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Serial.begin(9600);
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pinMode(ledPin, OUTPUT);
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}
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void loop()
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{
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byte val;
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// check if data has been sent from the computer
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if (Serial.available()) {
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// read the most recent byte (which will be from 0 to 255)
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val = Serial.read();
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// set the brightness of the LED
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analogWrite(ledPin, val);
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}
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}
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/* Processing code for this example
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// Dimmer - sends bytes over a serial port
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// by David A. Mellis
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import processing.serial.*;
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Serial port;
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void setup()
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{
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size(256, 150);
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println("Available serial ports:");
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println(Serial.list());
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// Uses the first port in this list (number 0). Change this to
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// select the port corresponding to your Arduino board. The last
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// parameter (e.g. 9600) is the speed of the communication. It
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// has to correspond to the value passed to Serial.begin() in your
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// Arduino sketch.
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port = new Serial(this, Serial.list()[0], 9600);
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// If you know the name of the port used by the Arduino board, you
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// can specify it directly like this.
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//port = new Serial(this, "COM1", 9600);
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}
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void draw()
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{
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// draw a gradient from black to white
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for (int i = 0; i < 256; i++) {
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stroke(i);
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line(i, 0, i, 150);
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}
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// write the current X-position of the mouse to the serial port as
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// a single byte
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port.write(mouseX);
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}
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*/
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/* Max/MSP patch for this example
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max v2;
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#N vpatcher 10 59 610 459;
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#P user uslider 286 66 18 128 255 1 0 0;
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#P window setfont "Sans Serif" 9.;
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#P window linecount 1;
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#P message 212 192 32 196617 print;
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#P newex 286 217 71 196617 serial a 9600;
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#P window linecount 2;
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#P comment 316 148 100 196617 Slide the fader to dim the LED;
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#P comment 69 192 125 196617 Click here to get a list of serial ports;
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#P fasten 4 0 2 0 291 215 291 215;
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#P fasten 3 0 2 0 217 212 291 212;
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#P pop;
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*/
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