I connected the EasyDriver power supply to a laptop charger and the motor turned nicely.
Today, I tried the laptop charger again, but a spark came, so I guess that's too much voltage?
Anyways, I still need a portable power supply.
Could I use 2 9V battery holders and combine the outputs together to attach to the EasyDriver?
In that case, can I use 8 AA batteries like I mentioned before?