Hi! Pretty new to this stuff so I don't know. I have an SG90 servo and a 28BYJ-48 Stepper with a ULN2003 motor driver, I plan on using a joystick to control both of them with the left and right going to the servo and the forward and backwards going to the stepper. Im asking if it's possible to connect both these motors, without any external power source, to the arduino and if it's viable for use.
Again, sorry if this is a dumb question.
Motors and servos should have their own power source, as the Arduino 5V output is not designed or intended to be used for motors or servos. In some cases, trying to use that output that will damage the Arduino, in other cases, the Arduino tends to malfunction.
Don't forget to connect all the grounds. Example:
Thanks! Is a 9V battery enough for stepper motors? Or should I try with something with higher voltage?
Leave the "9V battery" in the smoke alarm.
9V batteries are useless for motors.
For the 5V 28BYJ, you can use a 4xAA battery pack, 5-6V wall wart or phone charger
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