Works with some fiddling
It works, but using it to drive a small speaker needed some fiddling. It didn’t work with a 4 ohm speaker, 8 ohm was better. I found putting a small resistor in series with the speaker was necessary to stop it having playback issues. It is also quite sensitive to power supply, so capacitors over the power supply pins help avoid issues. Using the line-out or headphone output was more reliable out of the box. Arduino library is good, had no trouble playing mp3 files from an SD card.
Matt Gray
