09_tone

#define V0 5.0
#define unit V0/1024
#define R1 10000.0

const int Xin = A0;
const int Yin = A1;
const int KEYin = 3;



void setup() {
  // put your setup code here, to run once: 
  Serial.begin(115200);
  pinMode(KEYin,INPUT_PULLUP); // 칩 내부에 있는 pull up 저항을 사용

}

void loop() {
  // put your main code here, to run repeatedly:
  int Xval = analogRead(Xin);
  int Yval = analogRead(Yin);
  int buttonval = digitalRead(KEYin);
  Serial.print("x = ");
  Serial.print(Xval);
  Serial.print(", ");
  Serial.print("y = ");
  Serial.print(Yval);
  Serial.print(", ");
  Serial.print(" Button is ");
  if (buttonval == HIGH) {
    Serial.println("not pressed");
  } else {
    Serial.println("pressed");
  }
  delay(300);
}