DFPlayer mini MP3 player is a small and low cost MP3 module player with a simplified output directly to the speaker. The module can be used as a standalone module with attached battery, speaker and push buttons or used in combination with an Arduino UNO or any other with RX/TX capabilities. It perfectly integrates hard decoding module which supports common audio formats such as MP3, WAV and WMA. Besides, it also supports TF card with FAT16, FAT32 file system. Through a simple serial port, users can play the designated music without any other tedious underlying operations. Application 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
