(you'll have to know absolute basics of counting in binary)
this actually started out as a showcase, at first it barely made the item limit of the PTI editor.
but since i know the rules here (no sandbox maps), i decided to make it more efficient, so i could even add a little gameplay in it.

have fun (but please check out the logics and wiring using noclip, i spent so much time on it :p)

Click here to download 7 segment display

Hahah, I LOLed when I saw you have to place a portal on the actual display!
Nice use of lasers there btw... so glad they fixed the laser lag bug

isn't it too laggy for people with poor computers? (i wouldn't know because.. well, i don't have a slow computer)
also, did it take you long to complete the actual puzzle?

Lol, nah.. it runs just fine. At some point after DLC2 all lasers (even those not visible) were causing a bunch of lag (so the laser logic in PTI maps has slown some down) but it was recently fixed and your map runs nicely

IIRC, I threw a cube into the funnel and stood waiting on the prop_button, with the other 2 cubes making the top right segment white.

that is indeed as intended