DFPlayer DFR0299 Question
geometrixeng 2020-02-07 04:18:40 2246 Views1 Replies Hey Everybody,
I just purchased a DFR0299 MP3 player module (waiting on delivery). I am using the DFPlayer_Mini_mp3 library and have written a few lines of code to manage user inputs.
I am prepared to used Serial Mode, but I/O mode seems to provide all of the functionality that I need...at least I think it does. When I power up the device, will it automatically start playing? Or do I have to pulse the Segment 1 pin to ground?
How many tracks can I play in I/O mode and with the next track play after the current track is finished?
I am using an Arduino Pro Mini 5V microcontroller module. I am using this because several other components that I am using are also 5V. One of the videos that I watched stated that even though Vcc = 3.2-5.0V, the UART is 3.3V. Do I need a voltage divider to receive communication from the microcontroller? Or can I send 5V signals from the microcontroller without a voltage divider?
TIA,
--Neal
I just purchased a DFR0299 MP3 player module (waiting on delivery). I am using the DFPlayer_Mini_mp3 library and have written a few lines of code to manage user inputs.
I am prepared to used Serial Mode, but I/O mode seems to provide all of the functionality that I need...at least I think it does. When I power up the device, will it automatically start playing? Or do I have to pulse the Segment 1 pin to ground?
How many tracks can I play in I/O mode and with the next track play after the current track is finished?
I am using an Arduino Pro Mini 5V microcontroller module. I am using this because several other components that I am using are also 5V. One of the videos that I watched stated that even though Vcc = 3.2-5.0V, the UART is 3.3V. Do I need a voltage divider to receive communication from the microcontroller? Or can I send 5V signals from the microcontroller without a voltage divider?
TIA,
--Neal
