My little virtual diary

/* Read Jostick

 * ------------

 *

 * Reads two analog pins that are supposed to be

 * connected to a jostick made of two potentiometers

 *

 * We send three bytes back to the comp: one header and two

 * with data as signed bytes, this will take the form:

 *     Jxy\r\n

 *

 * x and y are integers and sent in ASCII

 *

 * http://www.0j0.org | http://arduino.berlios.de

 * copyleft 2005 DojoDave for DojoCorp

 */

  int ledPin = 13;

int joyPin1 = 0;                 // slider variable connecetd to analog pin 0

int joyPin2 = 1;                 // slider variable connecetd to analog pin 1

int value1 = 0;                  // variable to read the value from the analog pin 0

int value2 = 0;                  // variable to read the value from the analog pin 1

  void setup() {

 pinMode(ledPin, OUTPUT);              // initializes digital pins 0 to 7 as outputs

 Serial.begin(9600);

}

  int treatValue(int data) {

 return (data);

}

  void loop() {

 // reads the value of the variable resistor

 value1 = analogRead(joyPin1);  

 // this small pause is needed between reading

 // analog pins, otherwise we get the same value twice

 delay(100);            

 // reads the value of the variable resistor

 value2 = analogRead(joyPin2);  

   if (value1==1023) {

Serial.println("West");

}

  if (value1==0) {

Serial.println("East");

}

  if (value2==1023) {

Serial.println("North");

}

  if (value2==0) {

Serial.println("South");

}

 digitalWrite(ledPin, HIGH);          

 delay(value1);

 digitalWrite(ledPin, LOW);

 delay(value2);

Serial.print("X=");

 Serial.print(" ");

Serial.print(treatValue(value1));

 Serial.print(" ");

Serial.print("Y=");

 Serial.print(" ");

 Serial.println(treatValue(value2));

So this code is the one that connects the Joystick with the board, 

we use the analog inputs as a trace of the motion of the x and y

Note, the joystick is considered two potentiometers, made of two resistors.

Need to find the data sheet of the joystick. 

/* Read Jostick  * ------------  *  * Reads two analog pins that are supposed to be  * connected to a jostick made of two potentiometers  *  * We send three bytes back to the comp: one header and two  * with data as signed bytes, this will take the form:  *     Jxy\r\n  *  * x and y are integers and sent in ASCII  *  * http://www.0j0.org | http://arduino.berlios.de  * copyleft 2005 DojoDave for DojoCorp  */

int ledPin = 13; int joyPin1 = 0;                 // slider variable connecetd to analog pin 0 int joyPin2 = 1;                 // slider variable connecetd to analog pin 1 int value1 = 0;                  // variable to read the value from the analog pin 0 int value2 = 0;                  // variable to read the value from the analog pin 1

void setup() {  pinMode(ledPin, OUTPUT);              // initializes digital pins 0 to 7 as outputs  Serial.begin(9600); }

int treatValue(int data) {  return (data * 9 / 1024) + 48; }

void loop() {  // reads the value of the variable resistor  value1 = analogRead(joyPin1);    // this small pause is needed between reading  // analog pins, otherwise we get the same value twice  delay(100);              // reads the value of the variable resistor  value2 = analogRead(joyPin2);