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.
These merchants probably sell this module. Huh?