Hey,
I want to make a clock like this: Clock but then with arduino.
Behind every letter i want a led, but how does this work?
I read some thing about this but because i'm a programmer i don't get everything of the electro part :).
And what stuff do i need for this?
BTW. The matrix i want is 11x10 :).
Just to confuse you - as most people will recommend you use some shift register such as the TPIC6B595 to drive the cathode rows and if you are using efficient LEDs, you can probably just use the Arduino outputs for the anode rows (columns) - the alternative is "Charlieplexing" as was pointed out to me recently in this article.
You will need eleven common transistors (and incidentally, you do not require base resistors for these, but you do require the cathode resistors in the matrix).
The software is a trifle challenging - but you did say that was your forte!
