Available as an assembled Module and as a DIY project.
This Module is currently available.
Boolean logic module
George is a Boolean logic module which can supply 6 different logic functions from the two inputs – OR, NOR, AND, NAND, XOR & XNOR.
The logic functions are all obtained from 4011 NAND chips configured to deliver the different types.
It will work with any signals crossing approx. 1V.
Outputs are 5V gates.
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These merchants probably sell this module. Huh?