Micro DC Brushless Motor Controller

Projects General Guidance
1

Hello!

I am very new to all things electronic, looking for some help. :smiley:

I am trying to fit 2 Brushless DC Motors, a lipo battery, lipo charging board, 2 ESC's, an Arduino and a potentiometer into a circle with a diameter of 100 MM. Might be a tough one lol.

What I have are two MICRO DC Brushless motors that I need to run off 1 battery (950 mah 1s 75C) controlled by a potentiometer. I understand that a brushless motor requires a signal to run and that's where the Arduino would come in. I've seen videos of people using the Arduino Uno and a potentiometer to control the brushless motors but the Uno my scenario is simply to large. I would like to incorporate the charging module into the circuit as well so I can simply plug the unit in to charge. The circuit in the video was simply hooked up to a power supply.

So my basic questions are,

What is the smallest Arduino I can use to accomplish all this?

Does the Arduino have a capability of acting as a charging board for the lipo battery instead of using a separate charging board?

How would I wire this circuit to incorporate the charging board, the extra motor, and the extra ECS?

I've posted link below to each of the items if anyone needs to view any specs! I appreciate any input, Thanks!

Brushless Motors

Charging Board

Battery

ESC

https://www.aliexpress.com/item/XP-3A-RC-hobby-brushless-ESC-3A-1S-micro-0-7g-electronic-speed-controller/32827409581.html

Potentiometer

Video of Brushless Motor Run off Arduino Uno

2

What is the smallest Arduino I can use to accomplish all this?

You’re not clear about operation but assuming you want to control motor speed from the pot, you could do it with a just bare chip (atTiny85 or smaller) since all you need to do is to read an analog input from the pot and output the value as PWM to the ESC. Clarify your needs and we can further clarify the solution.

Does the Arduino have a capability of acting as a charging board for the lipo battery instead of using a separate charging board?

None that I’m aware of but don’t consider that the final word. Someone will know if there is such a device although you’ll end up with way more processor than you need (and the size grows too).

How would I wire this circuit to incorporate the charging board, the extra motor, and the extra ECS?

That’s the cart in front of the horse when you haven’t defined all the components.