If you decide that you want to connect the headphones to your music player, then you’ll need the audio jack module. In this step, we’ll be showing how to do just that.
Note: Its not recommended to have both the speaker and audio jack module connected. Sound output from both at the same time as this might damage the mp3 module.
Here is the breadboard wiring diagram for this step:
Here is the music player with the audio jack module and earphones connected:
Now that we learned how to setup the project with music, lets see how we can upload sound effects to play them through a speaker!