An electronics circuit to perform the basic addition of two 4-bit inputs designed on a PCB
The circuit was designed around the basic binary adder concept.
Logical AND Gate: IC7408
Logical OR Gate: IC7432
Logical XOR Gate: IC7486
This design isn't fully optimal, in particular PCB traces are capable of optimisations. It was the first full circuit design and PCB design endeavoured by myself and hence useful as a bedrock for future developments and projects with lots to learn from.