Dr. CockroachI 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.
Six basic gates with Diodes and Resistors
A project log for LIGHT LOGIC - HIC SVNT DRACONES
Using a LED/LDR pair to form inverting Photonic logic gates. The entire Boolean logic set handled by resistors and diodes! Who'd'a thunk
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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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nice looking examples!
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