i'm having some issues trying to get a circuit to work that i have found on, yes, the infamous instructables. It consists of a diode matrix that goes to the inputs of a BCD4511 decoder IC. It's literally the only article on the subject I can find and i would like to use this concept in a rotary switch indicator. I'll be brutally honest the instructable is half ass at best and it's missing key information. I have replicated his overall design twice and it cooks the SSD and the 4511 chip gets extremely hot. i'll include a link to it at the bottom. If someone can clear up the holes in the design it would be very much appreciated.
p.s. My comments are at the bottom of the instructable with a schematic that i had copied and completed from the original author.