Read values on startup

[aviwad]

A user could have set up a Countdown and then connected using my app. A user could have already set up a color for the clock and then connected. A user could have set up an "Eco" and then connected. Unfortunately I cannot read any of these values and so my defaults on the app differ from the real values on the display.

Short term solution: wipe the display. Set everything to the default. Cancel everything.