Harry Vader's fully armed and operational Elder Light Saber Wand

thingiverse

This iteration of a previous design features hollow parts that allow for easy installation of electronics. A 9-volt battery, power switch, keyboard key switch (Cherry brand), and Arduino Pro Mini (5VDC) are concealed inside. I posted a video on YouTube demonstrating safe operation of the wand/saber to avoid accidental injuries or limb loss. https://www.youtube.com/watch?v=vIBVMNUQPq0 Attributions: * Adriano Cazzarotto: RGB LED - https://grabcad.com/library/led-rgb-5mm-1 * Pamir: Arduino Pro Mini - https://grabcad.com/library/arduino-pro-mini-1 * Oliver Darvas: 9 Volt Battery - https://grabcad.com/library/9-volt-battery-2 * Kevin Yu: Cherry Switch - https://grabcad.com/library/cherry-mx-switches-mx-1 The mini switch was resized from a McMaster Carr item. B.O.M.: * Power switch: http://www.microcenter.com/product/465454/miniature-snap-in-nylon-illuminated-rocker---red-switch * Arduino Pro Mini (5VDC logic): http://www.microcenter.com/product/486546/arduino-pro-mini-board * Dual LED: http://www.microcenter.com/product/390134/led---dual-color-5mm-super-fresh-red-super-blue-3-pack * Cherry switch: https://www.amazon.com/gp/product/B077TK5DL9/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 * Keycaps (not exact match): https://www.amazon.com/gp/product/B077C287J2/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 * 9 Volt Battery Leads: http://www.microcenter.com/product/497120/9v-battery-clip OR https://www.amazon.com/COOLOOdirect-Connection-Plastic-Battery-Connector/dp/B06ZZHKWBF/ref=sr_1_3?s=electronics&ie=UTF8&qid=1535513025&sr=1-3&keywords=9v+connector You'll also need one 10K pull-down resistor for the push-button input on the Pro Mini and two 1K resistors for the LEDs. Update: A new handle design with threaded parts was added, providing more space for electronics. This update includes code for a 3-color LED wand with six modes. The program cycles through the six modes each time you press the Cherry switch, and the light show remains active without timeout. Note that the mini regards high and low states as opposite the voltage applied to the inputs, which is irritating but not a major issue. As a result, the wand will wake up in mode 1 instead of mode 0 - no big deal, though. Update: A basic schematic for the 3-color LED version was added, noting that the common lead on the 3-color LED is positive 5VDC, unlike the dual-color LED. Be sure to confirm the polarities of your LEDs before use.