After powering on, all nine button lights are off. Arrange the buttons in a nine-square pattern. Each time a button is pressed, the corresponding light illuminates, and the adjacent lights change state (from on to off or vice versa). When all corresponding lights illuminate, relay 1 or 2 is triggered to unlock, and audio 2 plays. If a level cannot be cleared within one minute, the device automatically resets. Buttons 1-9 are arranged as follows:
1 2 3
4 5 6
7 8 9
Audio Description: 001 button tone, 002 level clearance tone. Storage is on a TF card, MP3 format, and audio content can be modified.
Delivery: Controller + 12V transformer + nine buttons + sound effects (optional)