Posted by Deefish on March 07, 2002 at 17:17:35:
In Reply to: Illuminating Happs Pushbuttons posted by ErikRuud on March 07, 2002 at 08:51:25:
First this is some excellent info, I just went to Radio shack last night and the counter "boy" didnt have a clue what Resistor to use with the LED's they have in stock. The manager suggested a 330 resistor, so I got those. Oh well back to radio shack I go. So my question is this.. How do you hook up,like 16 of these LED's? Would it be in series? Or parallel? Also what is used to power them? Would I be able to cut off a power adapter from say an old portable phone as long as it had the right power rating? A photo would help very much. I need lots of hand holding. hehe. Thanks guys.