Taking our AMD R120 Mower to the next level

New Member here, but not new to things Radio Controlled, Pixhawk and autonomous flying machines.
Hoping for advice along the way and as a build log as this project progresses.
I’m working on developing an autonomous RTK GNSS system for our Flail Mower. We bought this for our RC Flying Field and it works great as an RC Mower/Flail Bushwhacker (“maiden flight” video attached).
Equipment Purchased for the automation project thus far:

SiK Telemetry Radio V3
H-RTK NEO-F9P w/ Base Station Antenna
H-RTK NEO-F9P w/ Vertical Array Patch Antenna
Pixhawk 6C Mini
Weatherproof enclosure
Tripod
Dell 7280 Laptop
USB Hub
20ft USB Heavy Duty Extension

All Tests in my lab will be done on a tracked vehicle that I have in my Arduino arsenal. I have configured this prototype to respond exactly as does our AMD R120.
As mentioned, new to this forum, and trying to access as much info as possible, so looking forward to responses.
Thanks in advance, Cletus

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Cool project. But I think you’re missing a key ingredient: ArduPilot has long since abandoned the Arduino in favor of (mostly) STM32 based autopilot hardware. So if you want to take advantage of this community, you should familiarize with this ecosystem. Here’s where to start:

Thanks for the response, Agreed!
Well, I have a ton of Arduino stuff here at my lab and vast experience designing in Arduino. Not much Arduino stuff will be utilized in this project since it will just about be control from the Pixhawk 6c. The Arduino stuff is only related to making the prototype vehicle mimic the AMD R120.

Apologies - I missed the Pixhawk 6C in your BOM. It’s a fine choice.

Testing will be near useless unless you use the autopilot on the smaller test vehicle as well.

Yes, absolutely! Test vehicle will be outfitted with everything i plan to use on the mower.

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Some pics of our testing yesterday. Went quite well, a few bugs and challenges to work out, but here are a few pics:



We established our reference location at the field
Lat 10.66110117 Lon -61.4014045

Any assistance finding the pinouts for these two connectors, would be greatly appreciated. I suspect it’s a typical e-bike BLDC controller, but all the pinouts I can find show the harness end, not the connector pinouts.

The chinese translation for the markings on the box says very little:


Did some basic waypoints and RTL on our runway yesterday. Went well, but as expected a few bugs to iron out.