{"id":171255,"date":"2019-11-01T03:31:37","date_gmt":"2019-10-31T19:31:37","guid":{"rendered":"https:\/\/www.geek.com\/featured\/-1809053\/"},"modified":"2019-11-01T03:31:37","modified_gmt":"2019-10-31T19:31:37","slug":"lego-candy-bar-dispenser-is-equal-parts-trick-and-treat","status":"publish","type":"post","link":"https:\/\/itteacheritfreelance.hk\/test\/wordpress\/2019\/11\/01\/lego-candy-bar-dispenser-is-equal-parts-trick-and-treat\/","title":{"rendered":"Lego Candy Bar Dispenser Is Equal Parts Trick and Treat"},"content":{"rendered":"
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credit: Jason Allemann <\/div>\n<\/figure>\n

It’s Halloween night, and that means kids everywhere will be heading out to trick-or-treat. Most of those treats will be handed over or plucked from a bowl, but not at the house of one highly-skilled Lego builder.<\/p>\n

That’s because Jason Allemann decided to create the amazing contraption you see here. It’s a Halloween vending machine<\/a>! All a trick-or-treater has to do is tap one of the buttons on the base and the machine springs into action.<\/p>\n

When activated, one of four motors (one for each row) whirs and conveyors guide the candy bars forward until gravity takes over and they drop into the Lego beast’s delightfully ferocious mouth.<\/p>\n

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Behind the scenes you’ll find a Mindstorms EV3 unit and motor running the show. It doesn’t have a very heavy workload in this particular build. Each button is attached to a lift arm.<\/p>\n

When a button is pressed, the far end of the lift arm activates a touch sensor. That tells the EV3 to activate the motor in the corresponding row and deliver the selected treat.<\/p>\n