HERE4FC: It functions as a GNSS receiver.

[muramura]

Feature request

Is your feature request related to a problem? Please describe.

When HERE4 is used as a flight controller, it does not become a GNSS receiver.
To make it a GNSS receiver, rewrite the firmware.

Describe the solution you'd like

I want to use it as a GNSS receiver without rewriting the firmware.

Describe alternatives you've considered

I inform FC of the telemetry message “GPS_INPUT” used by the GPS MAVLINK driver.

https://mavlink.io/en/messages/common.html#GPS_INPUT

Platform
[X] All
[ ] AntennaTracker
[ ] Copter
[ ] Plane
[ ] Rover
[ ] Submarine

Additional context

[rmackay9]

Can I ask why would you want the Here4FC to act as both an autopilot and as a GPS for another autopilot?

[muramura]

@rmackay9 san.
I find it tedious to convert the HERE4 flight controller into a GNSS receiver by rewriting the firmware, and I would like to simplify this process.

Additionally, I believe it is possible to transmit telemetry from other sensors, such as the barometric sensor, to the MAVLink barometric sensor driver in a similar manner.

[peterbarker]

GPS_INPUT is probably the wrong way to go about this.

Having the vehicle firmware emit (and consume) all the same DroneCAN messages as the AP_Periph firmware is probably the correct way to do this. That's not just GPS data, BTW - there are magnetometers and baros and whatnot too.