Might just be the math geek in me, but I had a ton of fun with this one! I like the pacing to it: Test a button and see what kind of meter we've got... Is it highly sensitive and touchy? Or does it just need tons and tons of juice? Or does it already have too much juice, and how much do I need to dial it back?
It almost strikes me as the kind of game that was actually based on something you were messing with IRL. Just curious, were you designing/working on/repairing a circuit that acted roughly like this? Is this an abstraction of some strategy you found for something?
I sorta get where others commenters are coming from about the theme, but I've always tended to lean in the free-spirited direction when it comes to theme interpretation. I feel like you've got one room in the sense that there is one screen. Still, I think if you'd had more time, you might have been able to come up with some purely cosmetic changes that would really land you firmly within the feel of a "one-room" game. You'd have missed out on that Trijam, though, so I'm glad you submitted what you have!
Super impressive that you dared to attempt three game jams in three hours! Fantastic result given your constraints.