I have ordered the following items

1) racerstar 35amp 4 in 1 esc (has no Bec 5v)
2) omnibus f4 flight controller
3)250 quadcopter frame + 4s battery etc

How do I connect the FC to the ESC and power it all ? I can't find documentation or videos for the exact config. Closest thing I can find is this wiring diagram. But the model on esc and fc are different. Is this correct? What do I need to connect these.


https://f4k3url/images/LXY63r

Is this what you're looking for.
https://www.rcgroups.com/forums/showthread.php?3002636-Omnibus-f4-pro-v3-racerstar-4in1-ESC-Current-Measure

This is where I got the wiring diagram from.

Just want to confirm as my ESC is different from the one in the diagram. (35a no Bec special edition )

Hi,in order to change the motor number ,ie, which ESC controls which motor, just swap the signal wires.

https://www.rcgroups.com/forums/showthread.php?2937130-How-to-solder-motors-to-4-in-1-esc

Hi my ESC and FC is different than the one shown in the diagram. My ESC does not have a current sensor.. so does the vcc ram bypass hack shown in the diagram still apply?

To be frank , I'm not sure and not that familiar with that FC.
Can you post a link of the ESC or even a picture will do .
Let us see......

Links included

Omnibus F4 Pro V3 Betaflight Flight Controller Built-in OSD Barometer SD Blackbox for RC Drone
https://banggood.app.link/MdVRi6hZZN

Fc is non pro version without current sensor and 4 in 1 esc does not have 5v Bec

Anniversary Special Edition Racerstar REV35 35A BLheli_S 3-6S 4 In 1 ESC Built-in Current Sensor for RC Drone
https://banggood.app.link/THm3obnZZN

Will this help you ?
https://blog.dronetrest.com/omnibus-f4-flight-controller-guide/

The FC seems different version than the one sold on banggood?

 Yes, the guide is for the v5, but the basics will be similar.  I think,You will get an idea

It does not apply to this clone board which is not a pro version