Category led hacks

Nixie suduku and on-die LEDs

The best booths at Maker Faire draw you in with something unbelievably cool or ridiculously absurd, and bring out a state-of-the-art technology just as your curiosity for the main feature starts to wane. [John Sarik]‘s booth for a class he’s TAing at Columbia – Modern Display Science and Technology - is one of these booths. The main [...]

StarGate Eggbeater

[Jason] used a strip of 142 Adafruit LPD8806 Addressable RGB LEDs to create the StarGate Eggbeater persistence of vision display. The LED strips are controlled by an Arduino Mega, which is used to control the strip and provides 21 bit color control for each LED. The strip is housed into a ring-shaped tube which is mounted onto a [...]

Using an undocumented display with an FPGA

When [Mike] ran across a display on Deal Extreme with 8 seven-segment displays, 8 red/green LEDs, and 8 buttons, he knew it would find a good home in a future project. There was only one problem, though: except for an Arduino library, there was absolutely no documentation available for this display. Wanting to use this display with [...]

Hacking the Peggy

Evil Mad Scientist Laboratories received an email from someone who wanted to hack their Peggy kit. This LED matrix kit has been featured on Hack a Day in the past, and provides hardware to set up a 625 LED matrix. This user built an external array of LEDs that they wanted to drive with the Peggy hardware. There [...]

More LED Maddness!

So last week [Caleb] posted an article about hacking a floating LED ball.  In response, here’s a couple simple LED hacks or repurposings that I’ve come up with recently. LED Solar Glow Cube: If you’ve ever seen path lights lighting up people’s gardens or walkways you may have wondered what components they had in them [...]