DFPlayer A Mini MP3 Player for DIY Arduino ESP32 Sound Project

DFPlayer - A Mini MP3 PlayerSing for the moment The DFPlayer Mini is a small and low cost MP3 module player with an simplified output directly to the speaker.The module can be used as a stand alone module with attached battery speaker and push buttons or used in combination with an Arduino UNO or any other with RXTX capabilities.It perfectly integrates hard decoding module which supports common audio formats such as MP3 WAV and WMA.It also supports TF card with FAT16 FAT32 file system. Through a simple serial port you can play the designated music without any other tedious underlying operations.APPLICATIONSCar navigation voice broadcastRoad transport inspectors toll stations voice promptsRailway station bus safety inspection voice promptsElectricity communications financial business hall voice promptsVehicle into and out of the channel verify that the voice promptsThe public security border control channel voice promptsMulti-channel voice alarm or equipment operating guide voiceThe electric tourist car safe driving voice noticesElectromechanical equipment failure alarm Fire alarm voice promptsThe automatic broadcast equipment regular broadcastNote For simple use the upper diagram is readyBut if you find the noise is quite loud then you could attach an 1K resistor to the TX pin.