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Let's Build a Music Player!

Digital Music Player's are one of the many sensational devices that were developed in the 20th century. They have been around for a while now and have become a part of our life. In the last few years, they have been integrated within Smart Phones and hence, have reached the masses. Now, Let us try to dive into knowing how these devices work and I guarantee that we all would be fascinated by the kind of engineering which goes into making these magic boxes. There are various topics which must be covered in order to build our own music player and so there will be several blogs to build a SOUND foundation.
Now let us make a list of the required components and then we will walk through each of them in the upcoming blogs. There are 3 basic parts which are required to build a device which can output Audio:-

  • Storage Medium.
  • Micro-controller.
  • Audio Output device.
We will store the required music file onto a storage medium as the onboard memory on a microcontroller is low. Then we need to take the data from the Storage device and transfer it to the Audio Output device after processing. Now we need to choose a storage medium that is cheap as well as easily available and what can be a better choice than SD cards in these respects. So we will be using SD cards to store our music files as they are a widely popular storage option. Moving on to the Microcontroller, we will be needing quite a bit of processing power and so an ARM MCU would be the best choice available. Since we will also be concentrating on making the Player as cheap as possible, we will go forward with Stm32f103 which is the cheapest available ARM development board. Now we need to get an audio output device which is the easiest of all, get any speaker, headphone, earphone and the third part is over! So we have got the main components but still, there are a few small materials remaining which are needed. So, go and get them at any online store.
  • Breadboard.
  • Single-core wires.
  • Sd card module for the breadboard.
  • Ftdi programmer.




In the next blog on electrovate, we will start the real part of the project and will get our hands on with the sd cards and look how these tiny electronic devices store a ton of data and how to interface with them. This series is intended for the people who have worked with microcontrollers and if anyone who has not even heard about them should first get the basics right! 


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