DFPlayer Pro emits a loud pop on power up.
Joe.Goldthwaite 2023-05-21 09:55:04 614 Views2 Replies When the DFPlayer powers on there's a loud POP from the speaker. I've done a lot of searching for a solution but haven't been able to find anything. I guess this was an issue with the DFPlayer Mini and I found some things on how to eliminate it there but nothing on the DFPlayer Pro.
I'm powering the module on an off a lot to conserve battery power and can't have it popping every time. Is there any information on how to fix it? It's not acceptable as it is now.
This loud pop sound has no known solution. I hope dfrobot will add some tips to get rid of this sound in their wiki.
bidrohini.bidrohini Could you try to attach a 1k resistor to the TX pin of DFPlayer to see if it works? Usually the working voltage of your mainboard is 5V, but the insid.e working voltage of the DFPlayer is 3.3V
Yeez_B 
