victorbrave
Member
I use JBrandt's solution all the time. Simple and effective. I usually use 1 kOhm resistors and 5k Ohm multi-turn pots that are readily available. We have put a bunch of them on breadboards with terminal blocks and we can simulate an extensive system with analog I/O very inexpensively. With some jumpers you can simulate either looop powered or self powered transmitters as well.
Can you post a drawing!!!....please!!!...