| /* | |
| Physical Pixel | |
| An example of using the Arduino board to receive data from the computer. In | |
| this case, the Arduino boards turns on an LED when it receives the character | |
| 'H', and turns off the LED when it receives the character 'L'. | |
| The data can be sent from the Arduino Serial Monitor, or another program like | |
| Processing (see code below), Flash (via a serial-net proxy), PD, or Max/MSP. | |
| The circuit: | |
| - LED connected from digital pin 13 to ground through 220 ohm resistor | |
| 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/PhysicalPixel | |
| */ | |
| const int ledPin = 13; // the pin that the LED is attached to | |
| int incomingByte; // a variable to read incoming serial data into | |
| void setup() { | |
| // initialize serial communication: | |
| Serial.begin(9600); | |
| // initialize the LED pin as an output: | |
| pinMode(ledPin, OUTPUT); | |
| } | |
| void loop() { | |
| // see if there's incoming serial data: | |
| if (Serial.available() > 0) { | |
| // read the oldest byte in the serial buffer: | |
| incomingByte = Serial.read(); | |
| // if it's a capital H (ASCII 72), turn on the LED: | |
| if (incomingByte == 'H') { | |
| digitalWrite(ledPin, HIGH); | |
| } | |
| // if it's an L (ASCII 76) turn off the LED: | |
| if (incomingByte == 'L') { | |
| digitalWrite(ledPin, LOW); | |
| } | |
| } | |
| } | |
| /* Processing code for this example | |
| // Mouse over serial | |
| // Demonstrates how to send data to the Arduino I/O board, in order to turn ON | |
| // a light if the mouse is over a square and turn it off if the mouse is not. | |
| // created 2003-4 | |
| // based on examples by Casey Reas and Hernando Barragan | |
| // modified 30 Aug 2011 | |
| // by Tom Igoe | |
| // This example code is in the public domain. | |
| import processing.serial.*; | |
| float boxX; | |
| float boxY; | |
| int boxSize = 20; | |
| boolean mouseOverBox = false; | |
| Serial port; | |
| void setup() { | |
| size(200, 200); | |
| boxX = width / 2.0; | |
| boxY = height / 2.0; | |
| rectMode(RADIUS); | |
| // List all the available serial ports in the output pane. | |
| // You will need to choose the port that the Arduino board is connected to | |
| // from this list. The first port in the list is port #0 and the third port | |
| // in the list is port #2. | |
| // if using Processing 2.1 or later, use Serial.printArray() | |
| println(Serial.list()); | |
| // Open the port that the Arduino board is connected to (in this case #0) | |
| // Make sure to open the port at the same speed Arduino is using (9600bps) | |
| port = new Serial(this, Serial.list()[0], 9600); | |
| } | |
| void draw() { | |
| background(0); | |
| // Test if the cursor is over the box | |
| if (mouseX > boxX - boxSize && mouseX < boxX + boxSize && | |
| mouseY > boxY - boxSize && mouseY < boxY + boxSize) { | |
| mouseOverBox = true; | |
| // draw a line around the box and change its color: | |
| stroke(255); | |
| fill(153); | |
| // send an 'H' to indicate mouse is over square: | |
| port.write('H'); | |
| } | |
| else { | |
| // return the box to its inactive state: | |
| stroke(153); | |
| fill(153); | |
| // send an 'L' to turn the LED off: | |
| port.write('L'); | |
| mouseOverBox = false; | |
| } | |
| // Draw the box | |
| rect(boxX, boxY, boxSize, boxSize); | |
| } | |
| */ | |
| /* Max/MSP version 5 patch to run with this example: | |
| ----------begin_max5_patcher---------- | |
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| -----------end_max5_patcher----------- | |
| */ | |