Thinking long and hard about how to propose to his girlfriend, [Ed] hit upon a great idea: use an arc reactor as the ring box, with enough LED lights to outshine all but their love, and servos to present the ring and tug at the heartstrings.
[Ed] set about giving his now-fiancé from his arc reactor heart by building a simple circular arrangement of adafruit RGB LED strip and an Arduino. There are two modes for this arc reactor: a light up mode that simply looks awesome, and a ‘ring mode’ that uses two servos to open the front cover and bring the engagement ring into view.
After [Ed]’s fiancé said yes, the cover in the center of the arc reactor closes for its continued use as a desk ornament. You can check out [Ed]’s proposal contraption in action after the break.