28BYJ-48 5V Stepper Motor Power Turntable

Hello

I'm trying to make myself a small portable compact turntable. It will be used to sit on my GoPro Hero 4 so shouldn't have too much weight or resistance on it.

I would like to make a small compact box to house the motor, motor controller and an Arduino Nano, plus battery power supply.

There may also be a couple of buttons and LEDs to change the settings for the rotation speed and direction. The motor will probably have a choice of selections to do a full rotation in around 60 seconds and various other steps up about 1 hour rotation time.

The final assembly ideally needs to be as compact as possible so that it can fit in a small space for when travelling / walking.

My main issue is what is the best way to power the whole setup. I've read that the motor should be on a separate supply to the Arduino which then makes carrying more batteries.

I have various rechargeable AA and PP3 batteries that I could use, or some 9V battery packs that come from RC cars that could be used if a higher life span is required.

Looking for advice on how I should power the Nano and the Stepper motor.

Thanks in advance for your replies.

Paul

PP3 9v batteries are quite useless for an Arduino as they can't provide much current and then only for a short time.

Be aware that stepper motors are very inefficient so you will need a big battery or (better) mains power.

You may find some useful info in stepper motor basics but it does not deal with 28byj unipolar motors - only bipolar motors.

Thanks for the reply.

OK what about if I use a 9V battery pack (from an RC Car so should be high powered), can I connect that direct to the Arduino and then have the same battery either going to a voltage regulator or a buck converter to power the motor?

Paul

Langy:
OK what about if I use a 9V battery pack (from an RC Car so should be high powered), can I connect that direct to the Arduino and then have the same battery either going to a voltage regulator or a buck converter to power the motor?

That would probably work.
There is a risk that the motors could draw so much current as to briefly deny the proper voltage to the Arduino causing it to reset. Just keep an eye out for that problem.

...R