#Arduino flac player how to
#Arduino flac player software
#Arduino flac player code

#Arduino flac player code

The following Arduino code requires TMRpcm library which allows us to easily play wave files from SD card. The digital pins 10, 11, 12 and 13 are hardware SPI module pins of ATmega328P microcontroller (Arduino UNO microcontroller). The last pin of the micro SD card module (CS) is connected to Arduino digital pin 10. The fifth pin of the micro SD card module (SCK) is connected to Arduino digital pin 13, The fourth pin of the micro SD card module (MOSI) is connected to Arduino digital pin 11, The third pin of the micro SD card module (MISO) is connected to Arduino digital pin 12, The second pin of the micro SD card module (VCC) is connected to Arduino 5V, The first pin of the micro SD card module (GND) is connected to Arduino GND, The microSD card module is connected to the Arduino as follows (from left to right): Also this module contains an IC which is 74LVC125A and it’s used as level translator (from 5V to 3.3V).

This module contains AMS1117-3V3 voltage regulator which is used to supply the micro SD card with 3.3V. In this project I used microSD card module, this module is supplied from circuit 5V source that comes from the Arduino UNO board. Arduino wave audio player circuitĪrduino digital pin 9 is the audio output (PWM signal), it’s connected to the audio amplifier.Īudio amplifier ground must be connected to Arduino ground (any GND pin). The following image shows project circuit diagram.

Audio amplifier (ex: PC speaker, LM386 …)Īrduino wave audio player with SD card circuit:.

microSD card with FAT16 or FAT32 file system.

Now click on X and change the sampling rate to 16000:Īfter that, go to File -> Export -> Export as WAV, a new window will open.Ĭhange Save as type to Other uncompressed files and save your wave file.Īnd you’ll get your file with WAV format! Go to: File -> Open… and open the MP3 file.Ĭlick on the file name then on Split Stereo to Mono as shown below:

#Arduino flac player how to

This example shows how to convert MP3 into WAV using Audacity converter.įirst, open Audacity software, a window will open as shown below:

#Arduino flac player software

wav format using a software named: Audacity.

If we have a MP3 audio file we can convert it to a. The sound is generated by varying the duty cycle of the PWM signal.įor better results, the wave audio file should have the following characteristics: A higher PWM frequency should give better sound output. The Arduino UNO microcontroller (ATmega328P) doesn’t have a DAC module, therefor PWM (Pulse Width Modulation) is used instead of DAC.

Usually a DAC (Digital-to-Analog Converter) is used to generate sound. The good thing with this format is that it is not compressed, this allows even a small microcontroller to play it. Wave audio file is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs. The Arduino loads wave audio files from FAT16 or FAT32 formatted SD card and a simple PC speaker is used to amplify the audio signal generated by the Arduino microcontroller. This article shows how to easily play wave audio files (files with.