I mainly fool with motors and such but my 13 year old daughter wants to put some blinking led's on a project. It's going to be about 40 leds in 4 groups of 6-10. She wants a random pattern between groups. I'm going to be very busy with work this week so it's going to have to be done over the weekend…

Charlieplexing a row of LED's

Riva August 23, 2012, 8:35am 4

Strange things going on here. I feel sure I replied to you suggesting the MAX7219 might be a suitable chip and giving links etc but I see no reference to the post. Am I imagining things?

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Charlieplexing a row of LED's

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