Page 231 - 최강 아두이노 퍼스트 참고서

조이스틱 예제코드2: 아두이노 사이트 튜토리얼 참조 (조이스틱 형태가 조금 다르게 보이지
만 개념은 같습니다)

http://www.arduino.cc/en/Tutorial/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);

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