yep.
i got it all sorted out
they are bipolar. the one on the left has 21 ohm windings and the one on the right has 8.5 ohm windings. i was searching all day, but really couldn't find an ic that could to the whole control of the motor. i mean, you need to H bridges. and in the best case you get them both in a single chip.
but is there an ic that coud have as input a clock and a direction pin, and contain everithing inside it?
that would be great.
i tested them using 2 IC's that contained each 2 power inverters, it seems to work....
i am still looking for that IC.
so, as compared to the unipolar, what do these have better, apart from the bunch of IC's and transistors needed to control them?
i mean, i read that they have a better torque, but how better?
unipolar seem to be much easier to control. all you need is a counter and a Buffer, wich could be transistors or a transistor array, such as ULN2003 wich i saw it is very used in many things that contain stepper motors.
i hope someone knows an IC that control bipolar....