I found this technical specification:
Step angle 1.8°
Holding torque 7N-cm
No. of leads 6
Phase current 0.95A
Phase resistance 3.4Ω
Phase inductance 1.6mH
Rotor inertia 12g-cm²
Detent torque 50g-cm
Insulation class B
Step accuracy Angular deviation is ±5% of one step
Weight 140g
If this is your stepper motor you can’t connect it directly to the K8055.
The maximum output current of the K8055 is 100mA.
You have to use relays.
You have to do a software which can output the required sequence to drive the stepper motor.
Please see these threads for some more info:
Please note: The K8055 output update interval is 10ms.