The YouTube channel Faraway Forge shows the making of a real glowing Katana. The light effects are created with some EL wire and tape. Probably not the best piece for cosplay or conventions (keep the big knifes at home plz) but it looks very cool!
Forging a Katana in a futuristic Cyberpunk style. The goal of this project was to create a cross between a Lightsaber and a very real, very functional Katana. This is a detailed look at the steps involved in the build, the most notable of which are: forging both a back and front section for the blade, creating an artificial differential heat treat by tempering the two sections of the blade at different temperatures, making the handle out of scrap metal, sand blasting the handle components with a homemade sand blaster, and finally lights! The glow of the blade and handle are created with electroluminescent wire and tape respectively. This stuff is produces a great effect, and is driven by a circuit board and homemade battery box which are entirely self-contained in the handle of the katana.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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.