I'm trying to use a 7 Segment Knightbright LED Display, however, after careful study of the datasheet, I'm unable to find what I believe should be the GND pin to power a segment! ...
I have a little problem: as I said I want to build kind of a big flashlight. With LED's and stuff. I already know some things I need, LED's of course, a battery case, a switch and stuff.. but my ...
I want to drive lots of LEDs in a spinning persistence-of-vision (POV) device. I need one output pin per LED, because matrix techniques don't work right in spinning POV devices. A serial-input, ...
For all the other stupid things I often do, I've found ways to boobytrap myself. For example keeping my wallet on the floor where the door opens - I can't help but stumble on it when I leave the ...