Assignment 5.1

posted Jun 29, 2010, 10:53 PM by Unknown user
Arduino code:
 
const int switchPin5 = 5;     // the number of the pushbutton pin
const int ledPin11 =  11;      // the number of the LED pin
const int switchPin4 = 4;
const int ledPin12 = 12;
int val = 0;
void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin11, OUTPUT);     
  // initialize the pushbutton pin as an input:
  pinMode(switchPin5, INPUT);    
  pinMode(ledPin12, OUTPUT);
  pinMode(switchPin4, INPUT);
  Serial.begin(9600);              // begins serial communication at 9600 bps
}
void loop()
{
    if (digitalRead(switchPin4) == HIGH && digitalRead(switchPin5) == LOW)
    // if switchPin4 is pressed AND switchPin5 is not pressed, then
    {                            
        val=1;
        Serial.print(1, BYTE);           // send 1 to Processing
        digitalWrite(ledPin12, HIGH);    // turn on ledPin12
        digitalWrite(ledPin11, LOW);     // turn off ledPin11
    }
    else if (digitalRead(switchPin4) == LOW && digitalRead(switchPin5) == HIGH)
    // if switchPin4 is not pressed AND switchPin5 is pressed, then
    {         
        val=0;
        Serial.print(0, BYTE);          // send 0 to Processing
        digitalWrite(ledPin12, LOW);    // turn off ledPin12
        digitalWrite(ledPin11, HIGH);   // turn on ledPin11
    }
    else if (digitalRead(switchPin4) == HIGH && digitalRead(switchPin5) == HIGH)
    // if both switchPin4 and switchPin5 are pressed, then
    {   
        val=10;
        Serial.print(10, BYTE);          // send 10 to Processing
        digitalWrite(ledPin12, HIGH);    // turn on both ledPins
        digitalWrite(ledPin11, HIGH);
    }
    else                               // if nothing is pressed
    {
        val=11;
        Serial.print(11, BYTE);        // send 11 to Processing
        // the above snippet of code borrowed from the bottom of the SimpleRead example sketch
        digitalWrite(ledPin12, LOW);   // turn off ledPins
        digitalWrite(ledPin11, LOW);
    }
    delay(100);
}
 
 
 
 
 
Processing code:
 
import processing.serial.*;
Serial myPort;  // Create object from Serial class
int val;      // Data received from the serial port
 
void setup()
{
  size(200, 200);
  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 == 1) {                        // If the serial value is 0,
    fill(0, 225, 0);                     // set fill to black
  }
  else if (val == 0) {                   // If the serial value is not 0,
    fill(0, 0, 225);                     // set fill to blue
  }
  else if (val == 10) {
    fill(225, 0, 0);                     // set fill color to red
  }
  else {
    fill(0);                            // set fill color to green
  }
  rect(50, 50, 100, 100);
}
 
 
This code both changes the color of the black rectangle in Processing and lights up the LEDs connected to pins 11 and 12 when the push buttons are pressed. The push buttons are connected to pins 4 and 5. When the button connected to pin 5 is pressed, it lights up the LED connected to pin 11 and changes the black rectangle to blue. When the button connected to pin 4 is pressed, it lights up the LED connected to pin 12 and changes the black rectangle to green. When both buttons are pressed, both LEDs light up and he black rectangle changes to red.
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