Here comes the DFPlayer Pro-a mini simple but powerful MP3 Player! This MP3 player module supports four controlling modes: Arduino, AT command, on-board buttons, and ADKEY. You can directly press the on-board button to play or switch music without using a controller. By using a USB cable, you can easily copy your favorite songs into this module to play them any where you want, or use it as a sound card for your PC or Raspberry Pi after connecting them together.
If 5V is applied to the DFPlayer Pro VIN, what is the logic level for RX/TX? In other way, is the logic level for communication is related to how the module is powered?
If connected to a 5V Arduino, do I need a inline resistor between MCU and module on TX/RX lines?
Hi,
If 5V is applied to the DFPlayer Pro VIN, what is the logic level for RX/TX? In other way, is the logic level for communication is related to how the module is powered?
If connected to a 5V Arduino, do I need a inline resistor between MCU and module on TX/RX lines?
Thank you!