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[#]: subject: "A trivia vending machine made with a Raspberry Pi"
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[#]: via: "https://opensource.com/article/23/3/raspberry-pi-trivia-vending-machine"
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[#]: author: "Phil Shapiro https://opensource.com/users/pshapiro"
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[#]: collector: "lkxed"
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[#]: translator: "geekpi"
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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A trivia vending machine made with a Raspberry Pi
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======
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As an educator working at a public library, I keep my eyes peeled for interesting uses of the [Raspberry Pi][1]. From where I sit, the Trivia Vending Machine project out of Dallas, Texas, is one of the most creative and interesting uses of these amazing devices. Using a Raspberry Pi to replace the coin box on a food vending machine is a stroke of genius by Greg Needel and his team. The potential uses of this idea are far-reaching. Check out this [short YouTube video][2] to see the Trivia Vending Machine in action.
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The original Trivia Vending Machine focused on science questions, but you could build a Trivia Vending Machine with any questions—history, civics, literature, and so on. The most engaging uses will be if you encourage students to write their own questions—and answer each others' questions. And consider this: Instead of disbursing food, the vending machine could disburse coupons to local businesses. One way I earn a living is by teaching guitar lessons, and I'd gladly donate a guitar lesson as a coupon for a Trivia Vending Machine. However, a student must rack up a suitable amount of points to earn one of my guitar lessons.
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Stretch your imagination a little further. Would it be possible to have logic puzzles for students to solve to get food (or coupons) from the vending machine? Yes, that would not be difficult to create. Maybe Sudoku puzzles, [Wordle][3], KenKen, Sokoban, or any other puzzle. Students could play these puzzles with a touch screen. How about chess? Sure, students could solve chess puzzles to get food (or coupons).
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Did you notice in the video that the original Trivia Vending Machine is large and heavy? Designing a smaller one—perhaps one-third the size that fits on a rolling cart—could make for easier transport between schools, libraries, museums, and maker faires.
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The inside of a Trivia Vending Machine is composed of stepper motors. You can buy these used on the web. A web search for "used vending machine motors" turns up the [Vending World][4] and the [VendMedic][5] websites.
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If you are a member of a makerspace, tell your fellow members about the Trivia Vending Machine. It's an open invention, not patented, so anyone can build it. (Thank you, Greg Needel.) I imagine the coding for such a device is not too difficult. It would be lovely if someone could create a GitHub repository of such code—and maybe some accompanying explanatory screencasts.
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Although the Trivia Vending Machine did not win an award in the Red Bull Creations contest, this invention is still award-worthy. Someone should track down Greg Needel and give him a suitable prize. What should that award look like? It might look like $25k or $50k. I say three cheers for Greg Needel and his creative team. They took the Raspberry Pi in the direction that the inventors of this computer intended—a tinkerer's delight. Bold and beautiful. Bold, beautiful, and open. Could you ask for anything more?
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One last thing. The Trivia Vending Machine was created several years ago with an early Raspberry Pi model. Current Raspberry Pi computers are much faster and more responsive. So, any lags in the interaction you notice in the above-mentioned video no longer exist on today's Raspberry Pi models.
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Oh, I want one of those candy bars so bad. I'm smacking my lips together. Remind me; how many points do I need to earn to get a Snickers bar? Whatever it takes. I'll do whatever it takes.
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/23/3/raspberry-pi-trivia-vending-machine
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作者：[Phil Shapiro][a]
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选题：[lkxed][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://opensource.com/users/pshapiro
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[b]: https://github.com/lkxed/
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[1]: https://opensource.com/resources/raspberry-pi
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[2]: https://www.youtube.com/watch?v=pDOhk-YAhys
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[3]: https://opensource.com/article/22/1/word-game-linux-command-line
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[4]: https://vendingworld.com/small-vending-parts/vending-machine-motors-small-parts
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[5]: https://www.vendmedic.com/product-category/vending-parts/vend-motors/
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@ -0,0 +1,48 @@
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[#]: subject: "A trivia vending machine made with a Raspberry Pi"
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[#]: via: "https://opensource.com/article/23/3/raspberry-pi-trivia-vending-machine"
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[#]: author: "Phil Shapiro https://opensource.com/users/pshapiro"
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[#]: collector: "lkxed"
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[#]: translator: "geekpi"
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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用树莓派制作的问答售货机
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======
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作为在公共图书馆工作的教育工作者，我一直在关注[树莓派][1]的有趣用途。在我看来，得克萨斯州达拉斯市的问答售货机项目是这些神奇设备最具创意和最有趣的用途之一。使用树莓派取代食品自动售货机上的硬币盒是 Greg Needel 和他的团队的一个天才之作。这个想法的潜在用途是深远的。观看这个 [YouTube 短视频][2]，了解 Trivia 自动贩卖机的运行情况。
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最初的问答售货机专注于科学问题，但你可以制作一个问答售货机来回答任何问题：历史、公民、文学等等。如果你鼓励学生写自己的问题，并回答对方的问题，那将是最有吸引力的用途。请考虑这个问题。自动售货机可以不发放食物，而是发放当地企业的优惠券。我谋生的方式之一是教吉他课，我很乐意捐出一节吉他课作为小事自动贩卖机的优惠券。然而，学生必须积累适当数量的积分才能获得我的一堂吉他课。
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把你的想象力再延伸一点。是否有可能让学生解决逻辑谜题，以便从自动售货机获得食物（或优惠券）？是的，这并不难创造。也许是数独谜题、[Wordle][3]、KenKen、Sokoban 或任何其他谜题。学生可以用触摸屏玩这些谜题。国际象棋怎么样？当然，学生可以通过解决象棋谜题来获得食物（或优惠券）。
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你是否注意到视频中原来的问答售货机又大又重？ 设计一个更小的，可能是滚动手推车大小的三分之一，这可以在学校、图书馆、博物馆和创客嘉年华之间更容易运输。
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问答售货机的内部由步进电机组成。你可以在网上购买二手的。在网络上搜索“二手自动售货机电机”会出现 [Vending World][4] 和 [VendMedic][5] 网站。
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如果你是创客空间的成员，请向其他成员介绍问答售货机。这是一个开放的发明，没有专利，所以任何人都可以制造它。（谢谢你，Greg Needel）我想为这样的设备编写代码并不太难。如果有人可以创建此类代码的 GitHub 仓库，以及可能附带的一些解释性截屏，那就太好了。
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虽然知识问答售货机没有在红牛创意大赛中获奖，但这项发明还是值得获奖的。应该有人找到 Greg Needel 并给他一个合适的奖品。该奖项应该是什么样子的？ 可能是 2.5 万或 5 万美金的样子。我为 Greg Needel 和他的创意团队欢呼三声。他们把树莓派带到了这种计算机的发明者所希望的方向：修理工的快乐。大胆、美丽、开放。你还能要求更多吗？
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最后一件事。问答售货机是几年前使用早期的树莓派型号制作的。当前的树莓派速度更快，响应更快。因此，你在上述视频中注意到的任何交互延迟在今天的树莓派上已不复存在。
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哦，我非常想要一块糖果。我抿着嘴唇。提醒我，我需要赚取多少积分才能获得士力架？ 不惜一切代价。我会不惜一切代价。
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/23/3/raspberry-pi-trivia-vending-machine
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作者：[Phil Shapiro][a]
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选题：[lkxed][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://opensource.com/users/pshapiro
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[b]: https://github.com/lkxed/
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[1]: https://opensource.com/resources/raspberry-pi
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[2]: https://www.youtube.com/watch?v=pDOhk-YAhys
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[3]: https://opensource.com/article/22/1/word-game-linux-command-line
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[4]: https://vendingworld.com/small-vending-parts/vending-machine-motors-small-parts
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[5]: https://www.vendmedic.com/product-category/vending-parts/vend-motors/
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