Getting a setup going. Everything appears to be working well, except the throttle.
Obviously, going straight into the Rx works just fine.
The ESC normally plays a startup tone, and then 3 beeps to let me know it's ready. It does this when going straight into the Rx.
If I jump the Rx into the "in" side of ardupilot.
And hook the ESC into channel 3 on "out" side.
I get the startup tone, but not the following three beeps.
Has anyone else experienced something like this?
I've quadruple checked the servo connections, and they're correct.