This is a simple circuit to play wav files using arduino Nano V3.0 ,it consist from 4 buttons ,each one play specific wav file loaded to SD card.
Step 1: Parts
1- Arduino Nano V3.0 (I used the chines version called Funduino Nano).
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.
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
1- Format SD card and make sure the setting as attached picture.
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.
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.
WAV files.zip