I found an original Lego Mindstorms NXT set, but the controller/ computer had quite a bit of battery corrosion. I tried to clean using vinegar and toothbrush, which initially worked, I heard a noise when I put batteries in, but the screen was broken. The silicone board is quite corroded once I opened the NXT case more… sad. I ordered a new on on Amazon for $60 bucks.

Sorry for failing the mindstorms community and losing a controller :(

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