DFPlayerMini cheat sheet

Recently I had the chance to incorporate the DFPlayer Mini into a project. It’s a super cute MP3 player that is great for Arduino powered projects. The only problem being with the documentation. It is a little spotty and I had to work pretty hard to get around a few issues. So here is a little cheat sheet to help you along:

This is a companion discussion topic for the original entry at https://reprage.com/post/dfplayer-mini-cheat-sheet