(Board) – Mode 1
Time runs down after receive signals-> Display shows remaining time and supply power to device-> it cuts off power after time runs out
(Board) – Mode 2
(Connect a button)
Display shows remaining time after receive signals-> push button start-> time runs down and supply power to device-> it cuts off power after time runs out
Pause (connect a button)
Push button pause: it cuts off power when pause, display shows remaining time. Re-supply power after push button pause again.