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361 lines
7.9 KiB
Plaintext
361 lines
7.9 KiB
Plaintext
/*
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Dimmer
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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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The circuit:
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LED attached from digital pin 9 to ground.
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Serial connection to Processing, Max/MSP, or another serial application
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created 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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http://www.arduino.cc/en/Tutorial/Dimmer
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*/
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const int ledPin = 9; // the pin that the LED is attached to
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void setup()
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{
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// initialize the serial communication:
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Serial.begin(9600);
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// initialize the ledPin as an output:
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pinMode(ledPin, OUTPUT);
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}
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void loop() {
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byte brightness;
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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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brightness = Serial.read();
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// set the brightness of the LED:
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analogWrite(ledPin, brightness);
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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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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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// 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 v5 patch for this example
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{
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"boxes" : [ {
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"box" : {
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"maxclass" : "comment",
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"text" : "Dimmer\n\nThis patch sends a binary number from 0 to 255 out the serial port to an Arduino connected to the port. It dims an LED attached to the Arduino.\n\ncreated 2006\nby David A. Mellis\nmodified 14 Apr 2009\nby Scott Fitzgerald and Tom Igoe",
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"linecount" : 10,
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"patching_rect" : [ 209.0, 55.0, 344.0, 144.0 ],
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"numoutlets" : 0,
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"fontsize" : 12.0,
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"id" : "obj-32",
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"fontname" : "Arial",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "comment",
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"text" : "change the slider to alter the brightness of the LED",
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"linecount" : 3,
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"patching_rect" : [ 90.0, 235.0, 117.0, 48.0 ],
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"numoutlets" : 0,
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"fontname" : "Arial",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "number",
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"outlettype" : [ "int", "bang" ],
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"id" : "obj-6",
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"fontname" : "Verdana",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "slider",
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"patching_rect" : [ 215.0, 235.0, 20.0, 140.0 ],
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"numoutlets" : 1,
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"outlettype" : [ "" ],
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"bgcolor" : [ 0.94902, 0.94902, 0.94902, 0.0 ],
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"id" : "obj-1",
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"size" : 256.0,
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "newobj",
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"text" : "select 0 1",
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"patching_rect" : [ 342.0, 305.0, 62.0, 20.0 ],
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"numoutlets" : 3,
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"fontsize" : 12.0,
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"outlettype" : [ "bang", "bang", "" ],
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"id" : "obj-30",
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"fontname" : "Arial",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "comment",
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"text" : "click here to close the serial port",
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"patching_rect" : [ 390.0, 396.0, 206.0, 20.0 ],
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"numoutlets" : 0,
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"fontsize" : 12.0,
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"id" : "obj-26",
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"fontname" : "Arial",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "comment",
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"text" : "click here to open the serial port",
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"patching_rect" : [ 415.0, 370.0, 206.0, 20.0 ],
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"numoutlets" : 0,
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"fontsize" : 12.0,
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"id" : "obj-27",
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"fontname" : "Arial",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "message",
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"text" : "close",
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"patching_rect" : [ 342.0, 396.0, 39.0, 18.0 ],
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"numoutlets" : 1,
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"fontsize" : 12.0,
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"outlettype" : [ "" ],
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"id" : "obj-21",
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"fontname" : "Arial",
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"numinlets" : 2
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}
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}
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, {
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"box" : {
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"maxclass" : "message",
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"text" : "port a",
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"patching_rect" : [ 364.0, 370.0, 41.0, 18.0 ],
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"numoutlets" : 1,
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"fontsize" : 12.0,
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"outlettype" : [ "" ],
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"id" : "obj-19",
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"fontname" : "Arial",
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"numinlets" : 2
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}
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}
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, {
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"box" : {
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"maxclass" : "comment",
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"text" : "Click here to get a list of serial ports",
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"patching_rect" : [ 435.0, 344.0, 207.0, 20.0 ],
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"numoutlets" : 0,
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"fontsize" : 12.0,
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"id" : "obj-2",
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"fontname" : "Arial",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "toggle",
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"patching_rect" : [ 342.0, 268.0, 15.0, 15.0 ],
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"numoutlets" : 1,
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"outlettype" : [ "int" ],
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"id" : "obj-11",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "message",
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"text" : "print",
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"patching_rect" : [ 384.0, 344.0, 36.0, 18.0 ],
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"numoutlets" : 1,
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"fontsize" : 12.0,
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"outlettype" : [ "" ],
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"id" : "obj-13",
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"fontname" : "Arial",
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"numinlets" : 2
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}
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}
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, {
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"box" : {
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"maxclass" : "newobj",
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"text" : "serial a 9600",
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"patching_rect" : [ 259.0, 420.0, 84.0, 20.0 ],
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"numoutlets" : 2,
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"fontsize" : 12.0,
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"outlettype" : [ "int", "" ],
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"id" : "obj-14",
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"fontname" : "Arial",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "comment",
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"text" : "Click to start",
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"patching_rect" : [ 369.0, 268.0, 117.0, 20.0 ],
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"numoutlets" : 0,
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"fontsize" : 12.0,
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"id" : "obj-17",
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"fontname" : "Arial",
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"numinlets" : 1
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}
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}
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, {
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"box" : {
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"maxclass" : "panel",
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"patching_rect" : [ 215.0, 235.0, 21.0, 139.0 ],
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"numoutlets" : 0,
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"mode" : 1,
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"grad1" : [ 1.0, 1.0, 1.0, 1.0 ],
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"id" : "obj-8",
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"grad2" : [ 0.509804, 0.509804, 0.509804, 1.0 ],
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"numinlets" : 1,
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"angle" : 270.0
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}
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}
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],
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"lines" : [ {
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"patchline" : {
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"source" : [ "obj-11", 0 ],
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"destination" : [ "obj-30", 0 ],
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"hidden" : 0,
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"midpoints" : [ 351.0, 296.0, 351.5, 296.0 ]
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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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"patchline" : {
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}
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}
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]
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}
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*/
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