Flaredro WROTE:If I'm using the 10Amp DC Motor Driver, do I still need to apply a 12V to the motor driver or just directly connect to the microcontroller board?
Yes, power supply is a must. The voltage is depends on your motor's voltage. If it is 12V, then supply with 12V.
Flaredro WROTE:I do have another stepper motor bought from cytron, is this motor driver suitable for that stepper motor? or L293D is enough to run the motor?
10Amp DC Motor Driver it is not design for stepper motor. L293D is enough for free run, not sure for full load.