Has anyone here been able to add a pixhawk or similar device to the jetbot?

[irvinmarceloc]

I am wanting to add a pixhawk 4 to jetbot without making many changes to the project to run on large but flat surfaces.
I would like to see examples of what they were based on or things like that, I have doubts about how to connect these two devices. At the moment I have done it by USB using the following program
but I can't make the pixhawk control the motors with the dronekit library
from dronekit import connect, Command, LocationGlobal
from pymavlink import mavutil
import time, sys, argparse, math
print ("Connecting")
connection_string = '/dev/ttyACM0'
vehicle = connect(connection_string, baud=921600,wait_ready=True)

Regards, Irvin