int vert = A0;
int horz = A1;
int btnSel = 2;

void setup() {
  // put your setup code here, to run once:
  pinMode(vert, INPUT);
  pinMode(horz, INPUT);
  pinMode(btnSel, INPUT_PULLUP);

  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:

  if(analogRead(vert) > 512){
    Serial.print("↑");
    delay(100);
  }else if(analogRead(vert) < 512){
    Serial.print("↓");
    delay(100);
  }

  if(analogRead(horz) > 512){
    Serial.print("←");
    delay(100);
  }else if(analogRead(horz) < 512){
    Serial.print("→");
    delay(100);
  }

  if(!digitalRead(btnSel) == HIGH){
    Serial.print("x");
    delay(100);
  }
}