I need to make a circuit that does something. It communicates with another circuit with wires or possibly magic. I have this part with a code stamped on the top '42' and I would like to use it.
At least he's just asking for advice and not a finished diagram and source code and PCB layout and BOM.
You suggested having them communicate using "wires or possibly magic" - have you considered a Stargate? Since 42 is the answer to Life, The Universe, and Everything, it seems like a comical sci-fi solution would be your best bet.
So - get a spinning ring gizmo, carve some egyptian heiroglyphs on it...
I need to make a circuit that does something. It communicates with another circuit with wires or possibly magic. I have this part with a code stamped on the top '42' and I would like to use it.