Starting on Led Matrix
Basic setup and tests

damn blown 74HC595
added monospaced fonts for matrix displays
stepping thru alphabet
adding npl time sync
folder structure
added display self test flashes at start up
added matrix self test to start up
making progress

struggling to read bits with an offset inside a char.  Sleeping on it
Scrolling display working with a fixed message

getting to like C!
tidy up to remove debug entries.
non blocking loop led for status
optimized delay for brighness
Case change or arduino message and fritzing
more wiring
Merge branch 'scrolling-display'