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68 lines
1.9 KiB
Plaintext
68 lines
1.9 KiB
Plaintext
/**
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* Simple Write.
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*
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* Check if the mouse is over a rectangle and writes the status to the serial port.
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* This example works with the Wiring / Arduino program that follows below.
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*/
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import processing.serial.*;
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Serial myPort; // Create object from Serial class
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int val; // Data received from the serial port
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void setup()
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{
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size(200, 200);
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// I know that the first port in the serial list on my mac
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// is always my FTDI adaptor, so I open Serial.list()[0].
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// On Windows machines, this generally opens COM1.
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// Open whatever port is the one you're using.
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String portName = Serial.list()[0];
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myPort = new Serial(this, portName, 9600);
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}
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void draw() {
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background(255);
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if (mouseOverRect() == true) { // If mouse is over square,
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fill(204); // change color and
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myPort.write('H'); // send an H to indicate mouse is over square
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}
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else { // If mouse is not over square,
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fill(0); // change color and
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myPort.write('L'); // send an L otherwise
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}
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rect(50, 50, 100, 100); // Draw a square
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}
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boolean mouseOverRect() { // Test if mouse is over square
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return ((mouseX >= 50) && (mouseX <= 150) && (mouseY >= 50) && (mouseY <= 150));
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}
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/*
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// Wiring/Arduino code:
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// Read data from the serial and turn ON or OFF a light depending on the value
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char val; // Data received from the serial port
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int ledPin = 4; // Set the pin to digital I/O 4
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void setup() {
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pinMode(ledPin, OUTPUT); // Set pin as OUTPUT
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Serial.begin(9600); // Start serial communication at 9600 bps
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}
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void loop() {
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while (Serial.available()) { // If data is available to read,
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val = Serial.read(); // read it and store it in val
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}
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if (val == 'H') { // If H was received
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digitalWrite(ledPin, HIGH); // turn the LED on
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} else {
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digitalWrite(ledPin, LOW); // Otherwise turn it OFF
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}
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delay(100); // Wait 100 milliseconds for next reading
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}
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*/
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