Lego Logic Gates

Heather, Zach and myself created four logic gates out of Legos scrounged from various Lego Technics vehicle model kits.

Here’s an AND gate made using strings:


00 position


01 position


10 position


11 position, output is activated


MOVIE!

Here’s an Inverter created with rods:


0 postion, 1 output


1 postion, 0 output


MOVIE!

We made another Inverter with levers:


0 position, 1 output


1 postion, 0 output


MOVIE!

This is an NAND gate using the differential gearing from one of the vehicles:


MOVIE!

This is a NAND gate created by chaining our inverter to the string AND gate: