I have an Arduino which I am using to control this stepper motor using a breadboard with this layout. I have the Arduino connected to my Mac and it successfully runs, but the "force" of the motor seems to be extremely weak. I have tried running the motor with different speeds but if I hold on to the wheel when its running, it does not manage to run around until I let go of it.
Have I missed something in the schematics or when connecting the motor, or is this kind of stepper motor just very weak when it comes to thrust? Should stepper motors that are 100% working give more thrust than just barely touching it with my hand, it does not manage to spin?
When I test the current using a multimeter from the 5V on the Arduino it shows around 640 on the multimeter screen.