Devlog #3 I have started writing first code and designing functionality of the mp3 player.

How should it function?

I want the mp3 player to work like this:

1. it reads the files in format of wav or mp3 from the micro sd card.
2. it shows you the info about those songs and you can choose wich one to play.
3. you play the songs, control volume and skip to other.

For the controling of the settings i think i will be using 5 buttons:

• two for volume.
• two for going forward or backwards through your playlist.
• one for pausing and playing the songs.

What did i do today?

• i have connected the modules on the pcb to the correct pins on the pico mcu.
• i have started writing the code and added features like:
  -scanning the names and loading the songs from the micro sd card
  -outputing the song from mp3 or wav format to the sound generating chip
  -checking the buttons using debounce and digital read

What do i want to add?

• firmware to control the oled display, maybe some menu.
• the entire design of the case (i havent started working on it yet).
• finishing the pcb schematic and routing it.
• some other parts like improving the code and features i dont know right now but will add in the future.