Switch Colors by CAMILO VILLEGAS

Demonstrates how to read multiple input from five switches and send data using the serial port to a processing application. The processing application change the color of a rectangle according to the data sent. For the Wiring boards v1 the on-board LED is on pin 48, on Wiring S the on-board LED is on pin 15.

int sent = 0;
int ledpin = WLED;    // on-board LED
int switchpin_a = 8;  // switch connected to pin 8
int switchpin_b = 9;  // switch connected to pin 9
int switchpin_c = 10; // switch connected to pin 10
int switchpin_d = 11; // switch connected to pin 11
int switchpin_e = 12; // switch connected to pin 12


void setup()
{
  pinMode(ledpin, OUTPUT); // set on-board LED as OUTPUT
  pinMode(switchpin_a, INPUT); // pin 8 as INPUT
  pinMode(switchpin_b, INPUT); // pin 9 as INPUT
  pinMode(switchpin_c, INPUT); // pin 10 as INPUT
  pinMode(switchpin_d, INPUT); // pin 11 as INPUT
  pinMode(switchpin_e, INPUT); // pin 12 as INPUT
  Serial.begin(9600); // start serial communication at 9600bps
  digitalWrite(ledpin, HIGH); // turn ON the Wiring board LED
}

void loop()
{
  if (digitalRead(switchpin_a) == HIGH) // if switch connected to pin 0 is ON
  {
    Serial.print('1');  // send 1 to Processing
    sent = 0;
  }
  else if (digitalRead(switchpin_b) == HIGH) // if switch connected to pin 1 is ON
  {
    Serial.print('2');  // send 2 to Processing
    sent = 0;
  }
  else if (digitalRead(switchpin_c) == HIGH) // if switch connected to pin 2 is ON
  {
    Serial.print('3');  // send 3 to Processing
    sent = 0;
  }
  else if (digitalRead(switchpin_d) == HIGH) // if switch connected to pin 3 is ON
  {
    Serial.print('4');  // send 4 to Processing
    sent = 0;
  }
  else if (digitalRead(switchpin_e) == HIGH) // if switch connected to pin 4 is ON
  {
    Serial.print('5');  // send 5 to Processing
    sent = 0;
  }
  else
  {
    if (sent == 0)
    {
      Serial.print('0'); // send 0 to Processing
      sent = 1;
    }
  }
  delay(100);   // wait 100ms for next reading
}



/* Processing code for this example

// Switch Colors
// by CAMILO VILLEGAS

// depending on the data received from Wiring through the serial port it
// changes the fill color of a rectangle

// Created 1 November 2005



import processing.serial.*;

Serial port; // create serial port object
int val; // variable to receive data from the serial port

void setup()
{
  size(200, 200);
  noStroke();

  // List all the available serial ports in the output pane.
  // You will need to choose the port that the Wiring 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 Wiring board is connected to (in this case #2)
  // Make sure to open the port at the same speed Wiring is using (9600bps)
  port = new Serial(this, Serial.list()[2], 9600);
}

void draw()
{
  if ( 0 < port.available() ) // if data is available to read
  {
    val = port.read(); // read it and store it in 'val'
  }

  background(0); // clear background

  if ( val == '1' ) // if 1 was received
  {
    fill(100); // set fill color
  }
  else if ( val == '2' ) // if 2 was received
  {
    fill(0); // set fill color
  }
  else if ( val == '3' ) // if 3 was received
  {
    fill(0,100,0); // set fill color
  }
  else if ( val == '4' ) // if 4 was received
  {
    fill(0,0,100); // set fill color
  }
  else if ( val == '5' ) // if 5 was received
  {
    fill(100,0,0); // set fill color
  }
  else { // if other data was received (in this case 0)
    fill(255); // set fill to a different color
  }

  rect(50, 50, 100, 100); // draw rect
}

*/