Feature Request

high I'm using a pdm28 and using it to control power steps by revering two different output polarities. my issue is I'm using a door trigger send a ground signal to output 1 and that will kick the step down and when it goes false it reverses the polarities and brings the step up. that all works fine but i need a current cut off so when the step meets its max travel it will kill power to the steps in that desired motion and then when the door switch button changes state it allows the step to move in opposite direction. I've tried doing some counters but no luck. thanks for any input.