Well, I’m very happy with the piDrive I got as pledge from the Kickstarter campaign. Work nice and smooth on a 24/7 base in my personal webserver. But while building some other stuff with Raspberries I had a demand for some more piDrives. Unfortunately the maker of the Kickstarter campaign no longer response, there webpage has not seen any updates for month, almost a year, and there shop shows the piDrive anytime out of stock.
So I fired up my layout tool and put together my own piDrive design, similar to the original one, also based on PL-2571B.