Hi

I cannot make deepsleep with timer wakeup work even in its simplest form on the Core Ink. Considering this is a e-paper device I would say its one of the most basic features they would test during development.

A simple use case is a bitcoin price ticker that downloads once an hour or something. But not even this is now realistic on battery since deepsleep doesnt work.

Did anyone else make it work with UIflow2?

Plugged into USB it will wake instantly after sleep with timer reason set. It does not wait for timeout.
On battery it never wakes up. Powerbutton will wake it with reason power button.

/Kim