Generic Calculator Shield for Arduino Photo-journal

[Maximilian Hohmann]

Hello!

Great idea! That's something I've been thinking about for some time as well. And I already have a big box of parts. My latest acquisition is a 12V 4Ah LiPo battery that should be good for powering such a calculator for a whole day, even if it uses an LED instead of an LCD.
Keep in mind that the Due uses 3.3V signals while the Uno and Mega have 5V which makes development of a universal shield a little more difficult.

Regards
Max

BTW: There are Intel Edison Arduino breakout boards available like this one here: https://www.sparkfun.com/products/13097
Hard and software can be developed using a cheap and easily programmable Arduino and then stepped up to the Edison if necessary.