It is no secret that one can build all kinds of fun things with LEGO pieces. This Ultimate Useless LEGO Machine from jkbrickworks is quite interesting though. It has a black box and robot hand that coordinate their behaviors via Bluetooth. The black box robot and the hand robot keep turning the switch on and off.
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The robot inside the box responds to the switch being turned off using a light sensor. It tells the hand robot what to do and always knows what’s going on. Pretty fun project if you ask us.
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