60 leds, 29'95, cut on-by-one and you telling me you've it working on an Arduino
Quote from: Hippynerd on Feb 27, 2013, 06:03 pmI can easily charlieplex 64 RGB LEDs, using 16 pins (should work on any arduino). 100 would be pushing it...'Easily'?Charlieplex theory and charlieplex practice are two different things.How much wire would he need to put each LED 4m from the Arduino? What would be the diameter of the bundle of wires coming out of the Arduino (to the nearest cm)?What would be the on/off ratio for each LED? How would that affect their brightness? How would you arrange the current-limiting resistors so that R,G and B are equally bright (assuming you actually bother to use any)?Finally ... (and this is the biggie) ... how would you do PWM?
I can easily charlieplex 64 RGB LEDs, using 16 pins (should work on any arduino). 100 would be pushing it...
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