Fredrik Hübinette has made his own Teensy based lightsaber.
This awesome looking lightsaber features a Graflex 2.0 for the hilt, which is a prop made to look like the original Gaflex flash gun used for Luke’s lightsaber in the original Star Wars. WS2811 LEDs are used to light up one of the blades. He’s also used SK6812 LED strips for another blade.
This video shows the light saber in action, including the different blades made for it. The sound effects in his lightsaber are most impressive.
We previously showed this similar but unrelated light saber project by the Firebrand Forge.