MG90 servos

[tomchaps]

What do folks typically use to bring the voltage down from a 2s battery for these servos? I presume there’s a standard, lightweight answer that fits in a typical ant?

[LimaHotel]

I guess the bec built into most escs? That's what I was thinking of trying. Run the receiver off full 2s (because lemons can) and run the servo off the Esc bec.

[peterwaller]

Although some receivers can run off the full 2S supply I prefer to run it from the 5 V regulated supply.
Because the 2S supply is running all the motors there is more chances that it is noisier and therefore more likely to interfere with the receiver.

[LimaHotel]

In which case do you then run the mg90 off the 5v going through the receiver?

[peterwaller]

I build my own controllers with the receiver mounted on the controller board. The servo plug is also on the controller board so it shares the same 5 v 1.5 A regulator but is not powered through the receiver.

[LimaHotel]

Ohkay, so the equivalent for me would be to wire off the esc bec in parallel, right?

[peterwaller]

Yes here is a diagram from my book Small Combat Robots. https://www.amazon.co.uk/dp/B07NJ9116Z (Another shameless plug)