You guessed it, diodes can also be used to build logic gates, but not all of them ... all other gates can be implemented. The three input, diode-only AND gate is shown in the picture above.

How well do you know your logic gates? For their final submission for STEM Projects class, [BKriet] gamified the situation using a Raspberry Pi Pico, some blinkenlights, and a not-insignificant ...