Hey, cause you have a bad experience with us can I offer you a tour of the redstone museum? Redstone museum. Choose interior for immediate note block or entrance for redstone tour? Trigger redstone double full adder at One, Two, Three et Cetera then ask at Output Of Knob Count e.g. Display => Output1 or similar. this gives you the function of adder which ultimately I believe redstone itself to be similar to the adder it forms.

Assume 16 signal strength from redstone, this means we need a quad full adder to make 16 signal and a zero off signal. I have attempted a quad full adder and failed to make it in full function, it resulted only in 12 signal strength. So it was not a great success. Still I think it similar to redstone and it is availible here in this link.