   Serial.println();
   */
   
-  //Serial.print(0); Serial.print("="); Serial.print(cm[0]); Serial.print("cm "); Serial.println();
   
   pingBufferLeft.push(cm[0]);
   pingBufferRight.push(cm[1]);

    bitClear(flags, F_FIRST_CYCLE);
    // Clear the ping buffers.
    pingBufferLeft.zero();
    return;
  }
  /*

  if (nowMillis - awakeTime > powerTimeout) {
    //TODO: and not waiting for second sensor
    
    // No motion
    if (!digitalRead(PIN_PIR)) {
      // Powerdown at the start of the next loop
      powerState = 0;
    }

  }
  
}

