user29991: In order to play an audio file, I was suggested to get an Adafruit data logger, yet right now I am stuck with the project and I realized that I'm not using the data logger to its full potential.
Yet I am unable to comprehend the purpose of a data logger ; all I'm using it for is to read SD Cards, and I can do that with a SD Card reader. I did read the whole documentation, data sheet, etc, and I can see that it has some cool functions, but my question is still, why data logger?
I know this  might be a stupid question, but I genuinely don't get what the data logger is supposed to be a huge help of. Please help me.

user10794: Are you referring to this?

That is a shield that has an SD card interface (with appropriate level-shifting for the SD card) plus a real-time clock.
The rest is "prototyping" area for you to install your own devices.

In order to play an audio file, I was suggested to get an Adafruit data logger

I don't see how this helps play audio files, however you might read the audio file from the SD card. Then you need to send it to a DAC (digital-to-analog converter) to convert the digital information to analogue.
The Adafruit data logger is fine for recording data (for example, temperatures) but I don't see why someone would recommend it for playing audio files (apart from the SD card interface).

my question is still, why data logger?

Better ask the person that recommended it, eh?

29991: <p>In order to play an audio file, I was suggested to get an Adafruit data logger, yet right now I am stuck with the project and I realized that I'm not using the data logger to its full potential.</p>

<p>Yet I am unable to comprehend the purpose of a data logger ; all I'm using it for is to read SD Cards, and I can do that with a SD Card reader. I did read the whole documentation, data sheet, etc, and I can see that it has some cool functions, but my question is still, why data logger?</p>

<p>I know this  might be a stupid question, but I genuinely don't get what the data logger is supposed to be a huge help of. Please help me.</p>
 10794: <p>Are you referring to <a href="https://learn.adafruit.com/adafruit-data-logger-shield/overview" rel="nofollow noreferrer">this</a>?</p>

<p><a href="https://i.stack.imgur.com/MBB2t.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MBB2t.jpg" alt="Adafruit data logger"></a></p>

<p>That is a shield that has an SD card interface (with appropriate level-shifting for the SD card) plus a real-time clock.</p>

<p>The rest is "prototyping" area for you to install your own devices.</p>

<blockquote>
  <p>In order to play an audio file, I was suggested to get an Adafruit data logger</p>
</blockquote>

<p>I don't see how this helps play audio files, however you might read the audio file from the SD card. Then you need to send it to a DAC (digital-to-analog converter) to convert the digital information to analogue.</p>

<p>The Adafruit data logger is fine for recording data (for example, temperatures) but I don't see why someone would recommend it for playing audio files (apart from the SD card interface).</p>

<blockquote>
  <p>my question is still, why data logger?</p>
</blockquote>

<p>Better ask the person that recommended it, eh?</p>
