Well it's that time of year where I give in and put the heating on, and apart from forgetting about an IP address change my RPi/Arduino central heating system is working perfectly again!
One thing I want to improve is the awful timer/temp interface:
They are just stored in a MySQL database with each day and hour defined (24x7 = 168 entries) with the target temperature being reset every hour with the appropriate value.
It works, it's functional, but it's awful to look at. Any suggestions of how to make it a bit more user friendly?