Super low power screen

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 :slight_smile: ):

  1. E paper
  2. LCD
  3. LED

Tnx a lot!

The LED (option 3) would be by far the easiest. All you would maybe need is a few resistors.

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.

Oliver

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.

Awesome_Guy:
Best screen, is the official Arduino TFT LCD. Not such a big problem they don't make it anymore. You can order it on Amazon ( http://www.amazon.com/Arduino-TFT-Screen-Card-Reader/dp/B00DIHRERO/ref=sr_1_2 ie=UTF8&qid=1438394278&sr=8-2&keywords=Arduino+TFT+LCD ).

instructions: ( TFT - Arduino Reference )