Back again for a bit, but no new insights. I end up with the error:
Traceback (most recent call last):
File "./clock.py", line 71, in <module>
unicornhatmini.write_string(
AttributeError: 'UnicornHATMini' object has no attribute 'write_string'
I copied the def write_string from the Scroll HAT Mini (ok to be precise it’s from the Scroll PHAT HD, afaik there is no library for the Scroll HAT Mini) its init.py, and copied into the Unicorn HAT Mini its init.py, rebooted the Pi but still get the same error. I also put the init.py in the same folder as the clock.py script, but it didn’t change anything. Any idea what could be the problem?