thanks, I will check it out, I already have some multiplayer games in mind, that could work without this, but if its possible, maybe we could make something even more fun
EDIT: (thought its better to edit than post another one)
I'm sure some people remember this little badass, I still have this one, also working and it reminds me to arduboy, I know its way more different also gamebuino is lot smiliar to arduboy than this, but it is/was something special. it uses infared for connections between devices.
I would like to hear @bateske opinion on it (, sorry if it was already mentioned)
the first experiements of this was named pokemon pikachu, where the next gen had even color, but as I can remember, it was mostly just a pedometer and the score could be transfered into the game or so. https://en.wikipedia.org/wiki/Pok%C3%A9mon_Pikachu
history of the mini handhelds