New e-Paper driver for displays supporting partial update.

Thanks!

what fonts do you use for your project?
I guess you use Espruino vector font and some images.

Busted! :-)

Other than the time & date, the text in the photo was part of the image put in as background. It may still be done that way for most of the text since the background will be common to all the thermostats in the house and the image can be made and distributed by the home server. The only thing completely local to the thermostat is the temp & rh. You are correct that the date/time used the espruino vector font.