Hi, I've scratch up a board following your schematic, but it doesn't work. Your device is very great! I've been trying to make a similar one for Force Feedback Proabout half a year before, but no progress. This afternoon , I built one board by hand(I didn't finish a PCB), and I tried it-- but no res...

Hi, I've scratch up a board following your schematic, but it doesn't work. Your device is very great! I've been trying to make a similar one for Force Feedback Proabout half a year before, but no progress. This afternoon , I built one board by hand(I didn't finish a PCB), and I tried it-- but no res...