Charlieplexing times two: GuGaplex your LEDs

Technology


Dhananjay Gadre wrote in from New Delhi with news of “GuGaplexing”, an update to the tried and true technique of Charlieplexing. GuGaplexing introduces a set of transistors into the mix to double the number of LEDs you can address:

The transistor pairs are so arranged that they provide an out of Vcc/2 at the output when the input is Z. If the input is 0, the output at the transistor is Vcc and when the input is 1, the output is 0.

This looks very cool. Check out the video that Dhananjay’s posted. There’s also an instructable that shows you how to make it.

Discuss this article with the rest of the community on our Discord server!
Tagged

I'm a tinkerer and finally reached the point where I fix more things than I break. When I'm not tinkering, I'm probably editing a book for Maker Media.

View more articles by Brian Jepson

ADVERTISEMENT

Escape to an island of imagination + innovation as Maker Faire Bay Area returns for its 16th iteration!

Prices Increase in....

Days
Hours
Minutes
Seconds
FEEDBACK