LED Charlieplexer for 2 to 28 pins

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By: created: 2013-04-10 | updated: 2013-04-10


This is a charlieplexing object for using a few pins on the propeller to control a lot of LEDs. The number of LEDs controlled ranges between 6 LEDs using 3 pins to 756 LEDs using 28 pins (though I have not tested that many). The number of LEDs can be determined by the following formula:

pins * pins - pins = LEDs that can be controlled

A demo is included.


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Package icon CharlieplexerDemo_-_Archive__Date_2010.11.27__Time_09.40.zip9.52 KB