DFPlayer Mini MP3 Player Module

DFPlayer Mini is a highly capable and compact sound module for adding music and sound effects to projects. It plays MP3 and WAV files from a memory card (maximum 32GB, FAT16/FAT32 format) inserted in the MicroSD card slot. The biggest advantage is the built-in 3W amplifier, which allows you to directly connect a small speaker (e.g. 8 ohm, 3W) without the need for an external amplifier. By communicating with Arduino and ESP series boards via serial communication (UART / RX-TX); all controls such as playing, stopping and adjusting the volume of the desired track can be done in software. It also has the ability to work directly with buttons (stand-alone) without any microcontroller. It is a perfect solution for smart home voice announcement systems, talking robots and interactive toy projects. (Note: When communicating with 5V systems, connecting a 1K ohm resistor to the RX line prevents interference to the sound).