so, this now has custom colours, auto brightness (with LDR) and all settings are saved to EEPROM so they persiste through power cycles, still to go is some kind of button interface (have the buttons, just not coded it)

the serial menu as is

this is the serial menu so far, and the actual clock looks like this:

need to design a case of some sort, i may go for an old style mantle clock... i have a case sitting around for use with a Vetinari movement but we shall see what happens to that.

The PC app that creates strings to copy paste into serial terminal currently looks like this:

Simple, but effective. 

I may add COM stuff to this at some point.