wavPlayer

Version française / French version

This tutorial shows how to execute a .wav file from an SD memory card.
The. wav file is a sound file extension of the RIFF (Resource Interchange File Format) specifications from Microsoft.
It is simpler to be executed, once this file is basically digitized sound samples, unlike other compressed formats, such as .mp3 files for example.

This Primitive wav file player only read : Wav Unsigned 8-bit PCM file and track will stopped if saturation occurs (has it won't differentiate it from an end of file for some reason)

This tutorial is based on the tutorial by Garagelab.
https://web.archive.org/web/20170430150220/http://garagelab.com/profiles/blogs/tutorial-playing-music-with-garagino-or-arduino-wav-player

Project link

http://wavplayer.madnerd.org

Instructions

If you want to make a real mp3 player , use a DFPlayer Mini instead
This is just a proof of concept.

Download wavPlayer.madnerd.org
Copy wavPlayer inside Arduino SketchBook (Documents/Arduino)
In tools , select : Arduino Pro Mini / 3V 8Mhz
Upload code with FTDI cable

Components:

Micro sd card 2go : 4€
Batteries holder 4AAA on/off : 1€
Arduino mini pro 3.3V : 1,50€
Audio jack dip : 2€
Total : 8.50€

Tools:

ftdi 3V/5V programmer

Software needed:

Arduino (Programmation): http://arduino.madnerd.org

Estimate cost : 8.50€ (batteries not included)

Create wav file

Open MP3 with Audacity
Below -> Project Rate (Hz) : 8000
Tracks -> Stereo Track to Mono
Tracks -> Resample : 8000hz
File/Export Audio
Save as type: Other uncompressed files
Header: Wav (Microsoft)
Encoding : Unsigned 8_bit PCM
Save to 0.wav on root of sdcard

Wiring:

SD card

1 --> X
2 --> 12
3 --> GND
4 --> 13
5 --> VCC
6 --> GND
7 --> 11
8 --> 10 (Chip select)

Headphone / Speaker

Left/Right ---> 6

Buttons

prev button --> 7
next button --> 8

pigetArduino/wavPlayer