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NeoPixel Lighting & Pumpkin Carving Timelapse #ElectronicHalloween

Happy Halloween!

The Ruiz family did some last minute pumpkin carving yesterday and had the opportunity to light up the Jack-O’-Lantern with some NeoPixels. But in stead of pulling out the soldering iron, wires, micro-controller and a NeoPixel strip, we only used a single Circuit Playground board. Using PhilB’s code, the 10 on-board NeoPixels emit a lovely candle flicker effect, which looks both organic and authentic. It’s being powered by a 2500mAh lipo battery. To keep the components from getting messy, we placed them in a sandwich bag which should keep them nice and dry.

Although there are much cheaper methods of lighting, this project provides a much brighter result. The simulated candle sketch is a great example of optimized code and teaches you how to create light using math… and when Halloween is over, the Circuit Playground can be used in many other projects :-).

Circuit Playground Jack-o’-Lantern


Adafruit electronic halloween dark 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 on Google+, in the comments below, the Adafruit forums, Facebook, 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 and Ask an Engineer, featuring store discount codes, ideas for projects, costumes, decorations, and more!


Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.

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