
Step 1: Parts
2- SD card Module.
3- SD card.
4- Bread Board.
5- four push Button .
6- four 22K resistors.
7- one 4.7K resistor.
8- BC546B NPN transistor.
9- Speaker.
10- wires.
Step 2: Prepare your SD card
2- Convert your music to .WAV files and make sure the below:
-Samples Per second(Hz):16000
-Channel :Mono
– Bits Per Sample: 8
I use Wav Sample rate converter software (picture attached).
3- Wave files samples attached.
