Bipolar 3 phases stepper: Need help to figure it o

Hello everyone,

I Have a 9v bipolar 3 phases stepper running like this:

  • positive
  • negative . none

time --> 1 2 3 4 5 6 pin 1 - - . + + . pin 2 + . - - . + pin 3 . + + . - -

Need 6 step to perform a quarter of a turn. So 24 for a turn.

I bought an Adafruit Motor Shield to help control this, but there is no routine to run that kind of motor...

Wich Arduino pins shall I set to, for example, set the Motor shield M1 pin one + and M1 pin 2 - ?

Or do you have any good ideas?

Thank you.