First of all, I’ve looked for an answer on this board and googling around, with no luck.
I’ve installed and used for a while a R3 with volumio.
After this, I bought a DAC (a PiFi+), and it worked well.
After that, I wanted a display, and I used my P3 with an lcd I2C (with pydpiper) and then with a oled display (with mpd-oled) but without dac.
All worked well.
Now I’d like to mount both DAC and display (and then a rotary, buttons etc).
Of course it’s not possible atm 'cause I have only one bus, used my the DAC.
I found how to add an I2C bus, but it seems to not work with volumio:
adding something like
causes no boot.
So I’m afraid that it’s not possible with volumio to add a new bus overlay.
Is that true?
The alternatives are to buy another display with SPI connections, I’m quite sure that it will work, but I’ll use too many GPIO (where I can plug rotary and buttons if I have no free gpio? :D)
I’m not asking for a magic wand ( ), but just if anyone can kindly suggest some link to guides or at least tell me if is it possible to add an I2C bus on volumio (if not, I’ll go for SPI), just to avoid looking for something that not exists
( I read dozens of threads on this boards, but nothing that solved my issue)
Volumio Version: 2.873
Hardware: rasp P3 v2
DAC: PiFi DAC+