This year I've decided that not only I will finish arduino handheld programmable controler project but I will also write an article describing it in detail. And I did. You can read about it in polish magazine "Elektronika dla Wszystkich" released in June 2022 (picture below). Also check this link. I know that this article may not be accesible to every person on the planet. Nevertheless I'm happy that it was interesting enough to be released to a bigger autience. If you wanna know how this device works I also recorded short video available below.
