5Pcs DFPlayer Mini MP3 Player Module Support TF card and U disk storage MP3 WAV WMA Decoding Compatible with for Arduino Raspberry Pi ESP32 STM
DFPlayer Mini MP3 Player Module: Support TF card and USB storage MP3 WAV WMA Decoding
When connecting to Compatible with for Arduino Raspberry Pi ESP32 STM and other control boards, please pay attention to the following issues
When controlling DFPlayer mini, if there is noise in the speaker, connect a 1k resistor between TX and RX
Because the operating voltage of the DFPlayer Mini module is 3.3V, and the input voltage of the main control board is 5V, a 1K resistor is needed for voltage division
If the effect is not good, you can add a statement after the mp3 playback code to set the RX pin to a low level