I'm trying to get working the Digi + Pro on my Raspberry PI 4 with an linear PSU (this: Assembled S11 with 5V DC output) and Volumio.
The raspberry PI works, volumio start, but the DIGI + PRO do not emit any signal.
When I give power to the raspberry using the standard PSU the DIGI + PRO works fine.
I've checked the Linear PSU output voltage, everything seems ok.
Anybody can give me an advise or suggestion?