Hello,
I'm currently creating my 2nd version my arduino roulette but i have one problem with the number board
My first version used reed switches but there was no protection against game interruption as people could just throw magnets at the board and the switches would randomly activate.
So I am looking for some kind of a security. I was thinking about RFID readers but i'd have to put one reader under every number so it would be a little too expesive as I would need around 50 of them and i have no idea how to connect so many RFID readers into a single arduino board.
Then i was thinkng about TTP223B touch sensors but they don't have any "security check".
At this point I don't know what I could use as a replacement for RFID readers so I came here to ask you guys if you have any ideas on how could this be solved. Thanks.
I don't see how you can say size doesn't matter. If you were using RFID tags then the squares would, presumably, have to be a bit bigger than the size of the tag. How big is an RFID tag?
Anyway, you seem to have ruled out RFID tags. So forget about the technology for a moment and focus on making the game convenient for players to use.
You also need to tell us how often the cheating happened and what form, exactly, it has taken. It may be possible to detect cheating with software so that there would be no need to change your hardware.