This website uses cookies.

This website uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Cookie Policy.

I agree
Learn More
Great Geek Gifts in the Technabob Shop!Get Technabob Daily: Join our Mailing List! | Follow Us: Facebook | Twitter
subscribe to our rss feedsubscribe via e-mailfollow technabob on twittertechnabob facebook fan pageGoogle+follow us in feedly
Follow Us:
Cool Gadgets, Gizmos, Games and Geek Stuff on Technabob

Ping-Pong Ball Clock: Table Tennis Tells Time

by Paul Strauss

Got 105 spare ping-pong balls, and an equivalent number of LEDs lying around? Yep, thought so. Well if you’re looking for something to do with all those random objects, the guys over at Hack A Day have a little spare-time project for you – a ping-pong ball clock.


The clock looks a lot like the ones you might see on the outside of a bank, but uses ping-pong balls as the diffusers on top of a 15×7 matrix of LEDs. The LEDs are pressed into a piece of pegboard, and the display is run by an ATmega168 and a Maxim DS3232 real-time clock, connected in a circuit consisting mostly of transistors and wires. When turned off, the whole thing looks rather unassuming – like a bunch of ping-pong balls glued to a piece of wood. Oh yeah, that’s what it is.


While this particular build is designed to work as a clock, there’s no particular reason you couldn’t apply the same idea to make a giant version of a PONG clock – which I think would be more appropriate, given the work materials. You can find the full DIY guide for the ping-pong clock over at Hack A Day.

Comments are closed for posts older than 90 days.

More from Awesomer Media...

theawesomer logo
The Evolution of Matt Damon Glowing Scorpions Tom Thum: Ratchet Face Cloudcover Bags 95octane logo
Matech Ford GT1 Racecar Turns up on eBay Mazda Eyes Carbon Fiber for Next MX-5 SYNC 3 finds a Home in All the 2017 Fords 2000 Cobra R Mustang with 85 Miles for Sale mightymega logo
Star Trek Beyond Blu-ray to Come with USS Franklin Model Rick and Morty Recreate Hilarious NSFW Court Transcript Wonder Woman Gets Trailer, Looks Awesome 3A Toys x Hasbro Transformers G1 Optimus Prime Action Figure