use 4 transistors ac t as switch to finish the | Chegg.com
self.clue++ : How to design a "most useless machine" with some logic gates
Useless Box
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So for one of my assignments, I made an electrical | Chegg.com
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Make a Super Simple Useless Machine | Make:
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Useless Box with Arduino - Hackster.io
Finally, A Differently Useless Machine | Hackaday
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Useless Box with Arduino - Hackster.io
Useless-box by danielkummer
Useless Box Project - Arduino - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key
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DIY Useless Box with Multiple Switches (Arduino controlled)