In the search for a cheap but effective Pickup Winder, its hard to beat the $50.00 Pickup Winder but In this series I am trying to keep the new Pickup Winder cheap but even better than before. We will be using an Arduino board and an OPTO Interrupter Switch to control the counting. The reason we are having to use a OPTO switch is because the magnet powered punch counter isn’t effective at RPMs greater than 1200. With this pickup winder I’m wanting to reach at least 2500 RPMs if not 3000. Not only do i want this winder to wind faster I want it to be able to accomplish two other tasks. I want this thing to have a RPM gauge and some type of gauss meter or polarity checker on board. In order to accomplish these tasks we will be using two to three Arduino nano boards. I hope you enjoy the project and as always if you have any questions or advice let me know. Thanks and I hope you enjoy!