Well here are the files. The idea behind the project is to create a more natural method for passing the time parameters to the unit without having to work the usual way round the typical selection routine normally encountered with central heating units.
This is still not quite ready yet. You need to press clear before you start but you should soon get the general idea. The clear key should backspace for the last character input, then drop out of the setting action, and the time set by a new sequence should also be set in registers or update the actual display, so you can see there is still much to do. I do hope this helps you and once again thanks go to Stefan for the help in getting this started.