Rad build + write-up from grajohnt up on Hackster.io.
Like many of us, I sometimes buy things on impulse (dumb_thing++). BigLots was having a sale on ridiculous animatronic stuff for Halloween, and my wife had made the mistake of putting me in charge of decorations (dumb_thing++, but not MY dumb thing, so dumb_thing–). I bought an animatronic triceratops skull, which is honestly only marginally Halloween-related. When triggered by motion, it would open it’s mouth and screech at you for far too long for comfort.
So, I did what any one of us would do with an inexpensive impulse buy that we considered throwing away: I took it apart to see how it worked.
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HAPPY HALLOWEEN! Every day this month we’ll be bringing you ideas and projects for an Electronic Halloween! Expect wearables, hacks & mods, costumes and more here on the Adafruit blog! Working on a project for Halloween this year? Share it with us in the comments below, the Adafruit forums, Facebook, Discord, Instagram or Twitter— we’d love to see what you’re up to and share it with the world (tag your posts #ElectronicHalloween). You can also send us a blog tip! Tune in to our live shows, 3D hangouts with Noe and Pedro, Show and Tell and Ask an Engineer, featuring store discount codes, ideas for projects, costumes, decorations, and more!