Instructions on how to add background sounds when its lights turn on.

Consider adding machinery noises when a workshop or factory opens.  You might also add the hum of human activity in any other building.  Look at your model and see what might apply to your situation.

 

The system is based on an auto starting mini mp3 player and an Arduino Mini micro controller.  In this application there are provisions for 11 LEDs to light.

 

 

 

 

 

Materials Required

270 ohm resistors 11
Arduino mini pro 1
DfPlayer mini 1
2 pin screw terminals 14
Speaker 5 Ohm 1
Sd card 32 GB 1
Pin headers 2
Dupont pin sockets 2

Assembly

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