I have a Qwiic Alphanumeric Display 16916 4-digit display on an Adafruit Feather. I have tried numerous examples. It never gets past begin(). I’ve tried with and without pullup resistors enabled, removed all other devices from the Feather, tried two different Feathers that otherwise are working, and two different 16916 displays. All stall at display.begin().
I have no idea what to try next.
How are they wired up? Share a photo if possible
I have realized that the Adafruit Feather RFM95 board that I have does not in fact contain a QWIIC port. I had plugged it into what is actually the two pin battery port on the Feather. I’m surprised it seemed to fit.
I added an Adafruit OLED Featherwing with QWIIC port, attatched the QWIIC cable to that, and now I can properly drive the Sparkfun 4-digit alphanumeric display.
After rereading the details on the Feather RFM95 board, it finally dawned on my bad assumption.