| /* | |
| Dimmer | |
| Demonstrates sending data from the computer to the Arduino board, in this case | |
| to control the brightness of an LED. The data is sent in individual bytes, | |
| each of which ranges from 0 to 255. Arduino reads these bytes and uses them to | |
| set the brightness of the LED. | |
| The circuit: | |
| - LED attached from digital pin 9 to ground through 220 ohm resistor. | |
| - Serial connection to Processing, Max/MSP, or another serial application | |
| created 2006 | |
| by David A. Mellis | |
| modified 30 Aug 2011 | |
| by Tom Igoe and Scott Fitzgerald | |
| This example code is in the public domain. | |
| https://www.arduino.cc/en/Tutorial/BuiltInExamples/Dimmer | |
| */ | |
| const int ledPin = 9; // the pin that the LED is attached to | |
| void setup() { | |
| // initialize the serial communication: | |
| Serial.begin(9600); | |
| // initialize the ledPin as an output: | |
| pinMode(ledPin, OUTPUT); | |
| } | |
| void loop() { | |
| byte brightness; | |
| // check if data has been sent from the computer: | |
| if (Serial.available()) { | |
| // read the most recent byte (which will be from 0 to 255): | |
| brightness = Serial.read(); | |
| // set the brightness of the LED: | |
| analogWrite(ledPin, brightness); | |
| } | |
| } | |
| /* Processing code for this example | |
| // Dimmer - sends bytes over a serial port | |
| // by David A. Mellis | |
| // This example code is in the public domain. | |
| import processing.serial.*; | |
| Serial port; | |
| void setup() { | |
| size(256, 150); | |
| println("Available serial ports:"); | |
| // if using Processing 2.1 or later, use Serial.printArray() | |
| println(Serial.list()); | |
| // Uses the first port in this list (number 0). Change this to select the port | |
| // corresponding to your Arduino board. The last parameter (e.g. 9600) is the | |
| // speed of the communication. It has to correspond to the value passed to | |
| // Serial.begin() in your Arduino sketch. | |
| port = new Serial(this, Serial.list()[0], 9600); | |
| // If you know the name of the port used by the Arduino board, you can specify | |
| // it directly like this. | |
| //port = new Serial(this, "COM1", 9600); | |
| } | |
| void draw() { | |
| // draw a gradient from black to white | |
| for (int i = 0; i < 256; i++) { | |
| stroke(i); | |
| line(i, 0, i, 150); | |
| } | |
| // write the current X-position of the mouse to the serial port as | |
| // a single byte | |
| port.write(mouseX); | |
| } | |
| */ | |
| /* Max/MSP v5 patch for this example | |
| ----------begin_max5_patcher---------- | |
| 1008.3ocuXszaiaCD9r8uhA5rqAeHIa0aAMaAVf1S6hdoYQAsDiL6JQZHQ2M | |
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| rxspZ0YI.eTCEh5Vqp+wGtFXZMKe6CZc3yWZwTdCmYW.BBkdiby8v0r+ST.W | |
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| FpDFDp1KcbAFcP5sJoVxp4NB5Jq40ougIDxJt1wo3GDZHiNocKhiIExx+owv | |
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| FgTO4Q8qiC7fzzQNpmNpsY3BrYPVJBMJQ1uVmoItRhw9NrVGO3NMNzYZ+zS7 | |
| 3WTvTOnUydG5kHMKLqAOjTe7fN2bGSxOZDkMrBrGQ9J1gONBEy0k4gVo8qHc | |
| cxmfxVihWz6a3yqY9NazzUYkua9UnynadOtogW.JfsVGRVNEbWF8I+eHtcwJ | |
| +wLXqZeSdWLo+FQF6731Tva0BISKTx.cLwmgJsUTTvkg1YsnXmxDge.CDR7x | |
| D6YmX6fMznaF7kdczmJXwm.XSOOrdoHhNA7GMiZYLZZR.+4lconMaJP6JOZ8 | |
| ftCs1YWHZI3o.sIXezX5ihMSuXzZtk3ai1mXRSczoCS32hAydeyXNEu5SHyS | |
| xqZqbd3ZLdera1iPqYxOm++v7SUSz | |
| -----------end_max5_patcher----------- | |
| */ | |