This Tiny LED Cube Fits in a TicTac Case
So tiny, so cool!
charlieplexing
Controlling LEDs with Charlieplexing
MAKE contributor Andy has created a great tutorial to introduce you to the utility of “Charlieplexing,” a method for controlling multiple LEDs without the use of multiple microcontroller pins. With charlieplexing you can turn on or off one LED at a time. To light more than one LED at a time, you can scan the LEDs by turning a sequence of them on and off really fast.
LoL shield proves that you can’t have too many LEDs
One fine morning, Jimmie P Rogers woke up and decided to figure out how many Charlieplexed LEDs would fit on an Arduino shield.
Charlieplexing times two: GuGaplex your LEDs
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 […]
