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How to Make a Lightsaber with NeoPixels #ElectronicHalloween

We posted about this tutorial back in January and thought it would be a great halloween project! From instructables user caitlinsdad:

So I was reading up on the Adafruit blog and came across Gewfy’s make of a mini 3D printed lightsaber . So I says to myself, “That’s not a lightsaber, mate. This is a lightsaber…” And I have a bag-o-Trinkets, 5v and 3v ones and I am not afraid to use them.

Well, time to investigate further and read up on what he had to offer. I always wanted to make a lightsaber and with the technology available today, it makes it easy to recreate things. I know enough about electronics to be dangerous so this project might not be too hard to tackle. I wanted to make a full size one. Besides, I nae have a 3D printer.

He offers the code for the Attiny85 which he used to build his Neopixel wand. Hmmm, I think I should be able to pull that over and use it in the Adafruit Trinket which I have. I also have some Neopixel strips from my Halo Cortana LED scarf. I’ve got some experience with soldering and working with those Neopixel strips.

Full instructable


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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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