#include <stdio.h>
#include <stdlib.h>

short *pinINPUTS[] {
  A0,A1,A2
  };
char* message = (char*)malloc(5);


void setup() {
  Serial.begin(9600);

  for(int i = 0; i < sizeof(pinINPUTS) / sizeof(pinINPUTS[0]); i++) {
    pinMode(pinINPUTS[i], INPUT);
  }

}

unsigned long prev = 0;
void loop() {
  if(millis() - prev >= 500) {
    prev = millis();

    for(int i = 0; i < sizeof(pinINPUTS) / sizeof(pinINPUTS[0]); i++) {
      sprintf (message, "%d - Potenc. - %d", i, analogRead(pinINPUTS[i]));
      Serial.println(message);

    }
    Serial.println("--");
    free(message);
  }
}