Gentlemen
I am adding a MP3 module DFPlayer Mini SKU:DFR0299 to my train controller. I now have it working with a little static. I had to set the pin 12 high in the initialization and have the program pull it low for 100ms.
Would it be better to add a pullup resistor to pin 12? Any suggestions on reducing the noise from the small speaker?
I am new to this form and not sure about adding files.
Jay