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It’s always interesting to see what people do to adapt technology to suit their needs. Check out this iPad cash register built by Cartel Coffee Labs founder Jason Silberschlag.

Adam Flaherty

I make cool stuff and write about other people making cool stuff on If you have something you think I should see, send me a tip.



  1. Any ide on the app it’s running?

    1. Bryan Dailey says:

      I believe it’s Square based on the card reader in the headphone jack

      1. Thanks Bryan. It;s unfortunate that Square is still not available in Australia. It would be perfect for a yoga studio I am helping to set up. Thanks again =)

  2. Becky Stern says:

    Hey I know that guy from AZ! Glad to see he’s still making stuff from metal and making good coffee.

  3. That’s awesome. Cash only, I’m assuming?

    1. .dh says:

      Nope, it takes cards too with square.  I’ve used it in the Tempe and Phoenix Cartel locales. :)

  4. Anonymous says:

    With a little dedication, you could write your own app that integrates Square, a POS system, inventory, AND use the Redpark cable to interface it with a uC to work the register (auto open for change); hope to see a 2.0! :-)

  5. Adam says:

    Thanks a lot very helpful information. Great equipment for small business. Worth every penny.

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