/*
* Update the pixels
*/
void updatePixels(int fsm_state, bool am)
{
  long rn;
  // update Pixels
  //  Serial.println("Update pixels");
  pixels.setPixelColor(HOUR_LED, pixels.Color(100, 100, 0  ));
  pixels.setPixelColor(MIN_LED,  pixels.Color(100, 100, 0  ));
  pixels.setPixelColor(SEC_LED,  pixels.Color(100, 100, 0 ));

  if (am)
    pixels.setPixelColor(AM_LED,   pixels.Color(100, 100, 0 ));
  else
    pixels.setPixelColor(AM_LED, pixels.Color(0, 0, 0));

  if (fsm_state == RUN_STATE) {
    pixels.setPixelColor(PWR_LED,  pixels.Color(0, 255, 0  ));
  }
  else {
    pixels.setPixelColor(PWR_LED,  pixels.Color(0, 0, 255  ));
  }

  pixels.show(); // This sends the updated pixel color to the hardware.
}