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

system August 23, 2012, 12:34am 3

I ordered a couple of MAX7219CNG chips. I guess I'll study up on them this weekend...
Any tips?

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