Im having issues with interfacing the arduino serial and processing
My arduino code is:
int switchPin = 4; // Switch connected to pin 4
void setup() {
pinMode(switchPin, INPUT);
digitalWrite(switchPin, HIGH);
Serial.begin(9600); // Start serial communication at 9600 bps
}
void loop() {
if (digitalRead(switchPin) == LOW) { // If switch is ON,
Serial.print(1); // send 1 to Processing
} else { // If the switch is not ON,
Serial.print(0); // send 0 to Processing
}
delay(100); // Wait 100 milliseconds
}
and my processing code is:
/**
* Simple Read
*
* Read data from the serial port and change the color of a rectangle
* when a switch connected to a Wiring or Arduino board is pressed and released.
* This example works with the Wiring / Arduino program that follows below.
*/
import processing.serial.*;
Serial myPort; // Create object from Serial class
int val; // Data received from the serial port
void setup()
{
size(200, 200);
// I know that the first port in the serial list on my mac
// is always my FTDI adaptor, so I open Serial.list()[0].
// On Windows machines, this generally opens COM1.
// Open whatever port is the one you're using.
String portName = Serial.list()[0];
myPort = new Serial(this, portName, 9600);
}
void draw()
{
if ( myPort.available() > 0) { // If data is available,
val = myPort.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);
}
I have a button wired to pin 4 and GND... if I read the arduino serial port it prints 1's and 0's like I want... but running the processing code doesnt give me any results (i exited the serial monitor in arduino IDE tho). Anyone have any ideas? I am a little stuck and would like to figure out how to interface processing and arduino ASAP