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Six basic gates with Diodes and Resistors

A project log for Light Logic

Using a Led and CdS LDR to form inverting Photonic logic gates. The entire Boolean logic set handled by resistors and diodes! Who'd'a thunk

Dr. CockroachDr. Cockroach 05/31/2019 at 23:292 Comments

I have worked out the circuits for the following gates. AND, NAND, Buffer, NOT, OR and NOR. With these I can make XOR and XNOR gates as well. These gates have good fan-in and fan-out capability.

Discussions

Dr. Cockroach wrote 06/19/2019 at 10:14 point

Thank you Dave, I also lashed up a XOR with three of them last night and it worked like it should as well :-D

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Dave's Dev Lab wrote 06/18/2019 at 21:31 point

nice looking examples!

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