Cheers Jazz.

Just found a bit more info on these drivers over at the Wantai site:

When the high electrical level is active, all control negative signals will be connected together to GND. When low electrical level is active, all control positive signals will be connected together to public port.

Which I guess translates to:

  • If your parallel port pulses at 3v then connect all the positive pins on the driver to +5v on the BOB and the negative pins to the control pins (2-7).
  • If your parallel port pulses at 5v then connect all the negative pins on the driver to GND on the BOB and the positive pins to the control pins (2-7).


Guess I need to test it..!

Wal.