   readSensors();
   printSensors();
   determineDirection();
+  drive(sensorVals[n], sensorVals[s], sensorVals[e], sensorVals[w]);
   Serial.println();
   delay(500);
 }

  }
}



uint8_t interrupt = 2;

int l1_motor = 10;
int l2_motor = 9;
int r1_motor = 6;
int r2_motor = 5; 

void setup()
{
  //analogReference(EXTERNAL);
