I want to build a large Lego crane in the farther future, an despite the fact I have Lego power functions motors, along with some off brand ones. I would much rather have something that is a Tethered Controller. So I could have a controller, or various switches to control a back to forth system. I DONT WANT TO USE BLUETOOTH The system is directly controlled with a wire. But basically it's: Controller or switch--------------------long wire-------------motor So the dashes should indicate I...