Is it possible to flip the display-o-tron hat display, such that it displays text upside down, relative to the displayotron hat logo?
Unfortunately not. The characters it displays are stored in ROM on the display driver IC, and it doesn’t support rotation. The best you could get is using the 8 custom chars to display 8 characters upside-down, but that’s probably totally useless in most situations.
Thanks for the quick response! I really appreciate it - I was beginning to drive myself mad thinking I had overlooked something, so at least now I know for sure!