I came up with this all on my own, and after replacing a few unnecessary XOR gates with AND gates, this was my result. It requires a room that is 18 blocks (Parallel to the levers) by 15 blocks (Perpendicular to the levers). However I did note at least one area that could have been compressed.
If you activate the two middle levers, you create a loop as, once it receives the initial signal, an OR gate continually checks for its own signal as long as the lever to the far right is disabled. Once that section is perpetuating its own TRUE status, you can turn off the middle-left lever, thereby activating part of an AND gate off its second branch. Finally, activate the far left lever to fully satisfy that AND gate, and it joins at another AND gate with the perpetuated signal. Once those conditions are satisfied, the TRUE signal opens the iron door, letting you enter the obsidian secured* room.
*Though at the time I'm recording this, I'm exactly 3 blocks short of a perfect seal.
what is the program you used called?
awsomeCo 9 months ago
@awsomeCo I think it was called Redstone Simulator.
JackBond1234 9 months ago