Serial monitor over Pixhawk and other FCs

Hello all,

How to connect a serial monitor to the FC? Is there any option in Mission Planner or QGC?

I’ve seen some messages talking about, but no wiring diagram for a standalone system. An Arduino or similar board are needed to connect in?

The ports labeled GPS and Telemetry on most flight controllers are nothing more than serial ports. Look at the documentation for your board - the pinout is usually very simple.

What do you mean by serial monitor?
A telemetry radio for remote monitoring or guiding? These are common and there is infinite doco for their set up.