(...) Here's a video tutorial that explains how it works: (URL) The demonstration model is an automated system in itself. It is the inner loop of a control system. The (optional) outer loop would use feedback from a driven device to move the red (...) (15 years ago, 14-Oct-09, to lugnet.technic, lugnet.loc.uk, FTX)
(...) Simple, clear, easy to follow. Now I really need to build this thing and try it myself. Thanks. Jetro (15 years ago, 16-Oct-09, to lugnet.technic, FTX)
