If I merge an example given in the Processing Serial distribution, "Simple Read" with an example given in Ardiuno Communication distribution "Physical Pixel" I get one code for the Arduino:
Apparently, I got a problem with the serial communication.
I would appreciate some help! Thanks!
- const int ledPin = 13; // the pin that the LED is attached to
int incomingByte; // a variable to read incoming serial data into
int switchPin = 4;
void setup() {
// initialize serial communication:
Serial.begin(9600);
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
pinMode(switchPin, INPUT);
}
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);
}
}
if (digitalRead(switchPin) == HIGH) { // If switch is ON,
Serial.print(1, BYTE); // send 1 to Processing
} else { // If the switch is not ON,
Serial.print(0, BYTE); // send 0 to Processing
}
delay(100);
}
- import processing.serial.*;
float boxX;
float boxY;
int boxSize = 20;
boolean mouseOverBox = false;
int val;
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.
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()[2], 9600);
}
void draw()
{
if ( port.available() > 0) { // If data is available,
val = port.read(); // read it and store it in val
}
//background(255); // Set background to white
if (val == 0) { // If the serial value is 0,
fill(0); // set fill to black
}
else { // If the serial value is not 0,
fill(204); // set fill to light gray
}
rect(50, 50, 100, 100);
// 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 it's 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);
}
Apparently, I got a problem with the serial communication.
I would appreciate some help! Thanks!
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