The DFRobot DFPlayer -A Mini MP3 Player is a small and low cost MP3 module with an simplified output directly to the speaker. DFRobot DFPlayer -A Mini MP3 Player can be used as a stand alone module with attached battery, speaker and push buttons or used in combination with microcontrollers such as Arduino, ESP32, Raspberry Pi and any microcontrollers with Uart. Connection Diagram Useful Link https://mc.dfrobot.com.cn/thread-11416-1-1.html Applications Car navigation voice broadcast Road transport inspectors, toll stations voice prompts Railway station, bus safety inspection voice prompts Electricity, communications, financial business hall voice prompts Vehicle into and out of the channel verify that the voice prompts The public security border control channel voice prompts Multi-channel voice alarm or equipment operating guide voice The electric tourist car safe driving voice notices Electromechanical equipment failure alarm Fire alarm voice prompts The automatic broadcast equipment, regular broadcast
