I found this video useful -

The schematics I'm particularly interested in is this:
I need to find a proper "3-phase inverter bridge" with a rating of, say, 15A/400V or higher, as the power component to drive the motor. The rest, including the coding maybe relatively easier to sort out.

 

Also found this very interesting and useful -
https://www.rototron.info/raspberry-pi-esc-motor-tutorial/

Using a Raspberry Pi with powerful Python script would also be a very good option. I don't quite understand the ESC (electronic speed controller) used - seems like it's exactly the "3-phase inverter bridge" I have been looking for?

It seems to me the battery voltage (shown as 12V) should be 5V according to the description.


This project reminds me I should start salvaging BLDC motors from scrap HDD's.

 

Also found this in China -
https://item.taobao.com/item.htm?spm=a1z0d.6639537.1997196601.4.377b7484zZcWPc&id=564997833258

It's for 220V AC and with it I don't even need to worry about the bridge rectifier to convert AC to DC for the motor - all integrated.

It only seems an overkill for making use of a salvaged smartdrive motor which I have no room for customization at all - all built in.