Read Arduino I/O from N5105 CPU

I've trained a YOLO neural Network to recognise the buckets attached my excavator so it tracks the position and calculates the buckets distance. That works ok for the trial, a bit slow running in the Delta but ok for the proof of concept. The next step is to use the Arduino analogue input to measure pressure (20mA current loop). How can I get the 2 processors to talk to each other?
This link goes to a video of it following the bucket. FYI, It figures out which bucket is attached (Mud, Tilt, GP or Sorting), what part of the loading process we're in (Loading, Lifting, Dumping, Returning and Grading), and importantly, the distance (approximate at this stage). It's a bit clunky but a work in process.....
https://drive.google.com/file/d/1STDnjwDLa3MiKmuieWFE79c4CrhMB33t/view?usp=drive_link