docs: def ReleaseSW(self):
          ' Go away from Limit Switch '
          while self.ReadStatusBit(2) == 1:           # is Limit Switch ON ?
              spi.SPI_write(self.CS, [0x92, 0x92] | (~self.Dir & 1))     # release SW 
              while self.IsBusy():
                  pass
              self.MoveWait(10)