Peterbilt 6x6 Medium Hauler

[Tommy R]

Hey Wombii (or anyone else in the know), I've got a basic and likely very stupid question to ask.

If I use the SBUS feature from a receiver, does that mean I can control many more channels than my standard transmitter/receiver would normally control? As I understand, PWM would mean I can only control 4 channels with a 4 channel rx/tx, but if I have an SBUS output on my receiver I can control more. Is that accurate?

Similarly, is IBUS similar to SBUS in that regard? Basically, I'm trying to determine if my 4 channel Sanwa setup can control all the features that Martin's ESP32 system is capable of controlling. It would seem I'd need a receiver with an SBUS output, however, which does not seem to exist with Sanwa. So now I'm looking into the Flysky Noble NB4, which I believe offers IBUS, but not SBUS that I can see.

I definitely want to keep a steering wheel controller for my truck, but want to have full functionality like Martin does in his youtube videos. Any thoughts?

Many thanks!
Tommy