Calcolo resistenze per i LED

clipped from www.evilmadscientist.com It's like one of those online "LED resistance calculator" thingies, except that you can fold it up and put it in your wallet. Begin by downloading the pattern here (512 kB PDF File). Print it in high quality mode on a laser printer, preferably on medium-weight "presentation" paper. For it to end up at the original size (that of a business card, 3.5 x 2"), you may need to disable automatic scaling on your printer

Invece di sbariare con vi iquadro erre e compagnia cantante, ecco un regolo calcolatore di resistenze per i LED!