Hi everyone,
I'm working on project which include screen that show 3 random digits, and change them every 30 min.
I want this product to work on some batteries for as much time as possible.
Which screen do u offer?
I saw those (price or complicated programing is not a problem ):
The LCD option 2 is nice if you do not need the backlight. If i remember correctly no further parts are required, works out of the box with any 5V Arduino. I think the controller is compatible with SBN1661, so any SBN1661/SED1520 library can be used.
E-paper has the advantage that once the picture is displayed, you can power it down.
The picture will remain, even when powered down.
But E-paper is reported to be slow in updating.
And paper doesn't light, so neither does e-paper.
I don't know about available backlight, but that would need some power.
This page (click !), found via your original link, shows the advantages of E-paper.
So if you want the best battery time, i think e-paper is certainly something to consider.