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You could never take this into a real casino. The cameras would pickup the infrared signals. The security guys would know something is up since a regular phone

• nom 10y ago
  Good point, but it works with marked cards so you essentially have to have control over the deck anyways. It can't work in an official game by a player, the house has to be in on it. My guess: this device is used to rip off players in backroom games. Marked cards are nothing new. The only novelty here is that the system is hard to detect if you don't know about it. This thing could be completely stealthy though, I suspect that you only have to turn on the infrared LEDs if the environment not lit well. And even that can probably be solved by using a more expensive camera module...