Category Archives: led

Winter is Coming, This Clock Will Let You Know When

For Game of Thrones fans, it’s an awkward time. The show has ended its run on HBO (not without a certain level of controversy), the planned prequel is still years away, and who knows when George R. R. Martin will actually get around to writing the final books in the …read more

Continue reading

Posted in 3d printed, animated, Arduino Hacks, clock, clock hacks, DFPlayer, Game of thrones, led, shield | Leave a comment

Add LEDs To Your Stained Glass

Stained glass is an art form that goes back many centuries, with the churches and cathedrals of Europe boasting many stunning examples from the mediaeval masters of the craft. You do not however have to go to York or Chartres cathedrals to experience stained glass, for it remains a vibrant …read more

Continue reading

Posted in art, led, led hacks, staied glass | Leave a comment

Mike Harrison Knows Everything About LEDs

Driving an LED and making it flash is probably the first project that most people will have attempted when learning about microprocessor control of hardware. The Arduino and similar boards have an LED fitted, and turning it on and off is a simple introduction to code. So it’s fair to …read more

Continue reading

Posted in 2019 Hackaday Superconference, cons, Hackaday Columns, led, led hacks, Mike Harrison | Leave a comment

Keeping Time with Blinkenlights

If we’ve learned anything over the years, it’s that hackers like weird clocks, and they love packing as many multicolored LEDs into a device as is humanly possible. Combine both of those concepts into one project, and you’ve got a perfect storm. So as far as unnecessarily complex timepieces go, …read more

Continue reading

Posted in Arduino Hacks, binary clock, clock, clock hacks, DS3231, GPS clock, led, pro micro, RGB LED | Leave a comment

Mimic Artfully Employs LEDs In Fashion

Any science fiction piece set in the near-future involves clothes that light up or otherwise have some form of electronics inside. This hasn’t happened in mainstream fashion just yet, but [Amped Atelier] are doing serious work in the field. Mimic was their entry for the 2016 MakeFashion Gala, serving as …read more

Continue reading

Posted in glowables, led, wearable, wearable hacks | Leave a comment

Fast Fresnel Hack Embiggens the Smallest of Heads

Aside from frightening small children, we have absolutely no idea why anyone would need a face-magnifying headpiece. But the video below gives us a chuckle every time we see it, and we figure a good laugh that incorporates a quick optics hack is worth a look.

When he’s not playing …read more

Continue reading

Posted in cosplay, costume, fresnel, led, optics, wearable hacks | Leave a comment

This RGB Tree Has its Roots in a PCB

[Paczkaexpress]’s RGB tree is a mix of clever building techniques and artistic form that come together into quite a beautiful sculpture.

The branches of his tree are made from strands of enameled copper wire capped with an RGB LED and terminated in a female header. The separate wires are all …read more

Continue reading

Posted in 2019 Hackaday Prize, led, led hacks, rgb, stm32, The Hackaday Prize, tree | Leave a comment

A Self-Expanding PWM Driver

For smaller microcontrollers, having enough outputs for the job is sometimes a challenge. A common solution is to do some sort of multiplexing with the available outputs or perhaps something more advanced such as Charlieplexing, but another good option is to use a specialized driver board. What’s even better is …read more

Continue reading

Posted in driver board, ESP32, headers, inputs, led, microcontroller, Microcontrollers, multiplexing, outputs, shield, trick | Leave a comment

The Basics of Persistence of Vision Projects

Persistence of Vision (POV) is a curious part of the human visual system. It’s the effect by which the perception of an image lingers after light has stopped entering the eye. It’s why a spinning propeller appears as a disc, and why a burning sparkler appears to leave a trail …read more

Continue reading

Posted in Hackaday Columns, led, led hacks, persistance of vision, persistence of vision, POV, POV display, Skills | Leave a comment

Light Emitting Logic Gates Built From Scratch

What’s the weirdest computer you can think of? This one’s weirder.

[Dr. Cockroach] figured out a way to create an inverting NOT gate from just one LED and two resistors (one being a photo-resistor). The Dr. has since built AND, NAND, OR, NOR, XOR and XNOR gates, as well as …read more

Continue reading

Posted in 2019 Hackaday Prize, Hackaday Prize, led, led hacks, logic gates, photoresistor | Leave a comment