Today I searched for the existence of Arduino in the world of Aviation and guess what I have found..
I found many websites and projects that take opensource aviation seriously.
Here is a Cambridge postgraduate student who helped design a modular opensource rocket avionics system that consists of modular Disc-Shaped PCB stacks.
https://hackaday.com/2017/08/21/open-source-modular-rocket-avionics-package/
And this is a website for a project that aims to make general aviation safely available for everyone.
http://makerplane.org/
This website makes it easy for Arduino enthusiasts and hobbyists to make their own Avionics systems using the DIY culture.
http://experimentalavionics.com
Arduino EFIS
http://experimentalavionics.com/efis-19264/
