const int ejey = A7;  // Analog input pin that the potentiometer is attached to
const int ejex = A6;  // Analog input pin that the potentiometer is attached to

const int boton = 7;  // Analog input pin that the potentiometer is attached to

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(57600); 
  pinMode(boton, INPUT);
  digitalWrite(boton, HIGH);
}

void loop() {            

  /*
  Serial.print("ejex = " );                       
  Serial.print(analogRead(ejex));      
  Serial.print(", ejey = " );                       
  Serial.print(analogRead(ejey));   
  Serial.print(", boton = " );                       
  Serial.println(digitalRead(boton));   
  delay(10);      */           

  if (analogRead(ejey)>700) Serial.print('w'); 
  else if (analogRead(ejey)<300) Serial.print('s'); 
  if (analogRead(ejex)>700) Serial.print('a'); 
  else if (analogRead(ejex)<300) Serial.print('d'); 
  if (((analogRead(ejey)>300)&&(analogRead(ejey)<700))&&((analogRead(ejex)>300)&&(analogRead(ejex)<700))) Serial.print('p'); 
}