DFPlayer Mini MP3 module with MicroSD card slot (OT4011)

The DFPlayer Mini is a compact and powerful MP3 player module, ideal for audio applications in projects such as Arduino or other microcontrollers. This module can directly play MP3 files from a microSD card or USB stick, without the need for any additional hardware.
Key Features:

Simple Operation: Controllable via serial communication, buttons or a combination of both.
Multi-Format Support: Plays MP3, WAV and WMA files.
Storage: Works with microSD cards up to 32GB.
Built-in Amplifier: Connect a speaker directly for clear sound without additional amplifiers.
Power Supply: Operates on 3.2V to 5V, ideal for portable projects.
Compact Size: Easily fits into small housings thanks to its dimensions of 22mm x 30mm.

The DFPlayer Mini is a versatile solution for all your audio-related projects, whether you want to add sound effects to your design or build a complete audio system!
NOTE: This is not the original YX5200 chip. Existing code for the YX5200 chip may need to be adjusted for proper functionality.