FREE SHIPPING SALE - All T-Shirt Orders Get Free Worldwide Shipping
That's right: free shipping whether you're in the USA or anywhere else in the world!

LEDs in an Engagement Ring

ring

Ben's engagement ring is awesome not only because it lights up, but because it lights up when he and his girlfriend hold hands:

Putting a battery of capacitor inside a ring is nigh impossible, so [Ben] decided to power the LEDs with an inductive charging circuit. A coil of wire wound around kapton tape serves as the inductor and a small SMD capacitor powers three very bright and very tiny LEDs.

The inductive charging unit itself is a masterpiece of hackery; [Ben] wanted the ring to light up whenever he and his ladyfriend were holding hands. To do this, [Ben]‘s inductive charger is also a wearable device: a large coil of wire is the charger’s transformer and was would to fit around [Ben]‘s wrist. The entire charging circuit can be easily hidden under a jacket sleeve, making for a nearly magical light-up ring.

You can watch a video of the ring at the link.

Link


Commenting is closed.





Check out Twaggies' very funny clip:

Om Nom - Twaggies by Twaggies
Email This Post to a Friend
"LEDs in an Engagement Ring"

Separate multiple emails with a comma. Limit 5.

 

Success! Your email has been sent!

close window