I haven’t heard of anything related to OBD2 and Julia (otherwise a number of Julia packages are available for very exotic interfaces/hardware), and googled and found nothing. Only for Python: python-OBD
It can stream real time sensor data
[That package works on Raspberry Pi, Julia itself does too, and I think also packages below I mention.]
I’m not really recommending Python over Julia (but it’s an option), rather using that (or some other?) package from Julia. With e.g. PythonCall (I hear it’s excellent, and it takes care of Python dependencies).
It has a rather slow startup (but should be fine, at least after startup on Raspberry Pi):
julia> @time using PythonCall
4.598435 seconds (2.44 M allocations: 171.395 MiB, 1.04% gc time, 84.54% compilation time)
PyCall.jl has a faster startup, is know to be excellent (so might be more appropriate, at least on the slower RPi), but you have to manually install Python dependencies (not really a problem).
This is more advanced than you seem asking for, but Julia is used in autonomous/self-driving research:
http://anthonylcorso.com/wp-content/uploads/2021/02/thesis.pdf
Everything I’ve seen for Julia for hard-realtime, is not yet used in actual hardware, that I know of (but would like to be proven wrong, i.e. only used in a simulation). But since people trust Julia for hard-realtime, and use (with care to avoid the GC) rather than C++ or Java, then it seems plausible also for self-driving…, while I doubt it will be used (soon) for that in actual hardware, or with pure Julia.
That said, you seemingly don’t need hard-realtime, only needs soft-realtime (or even best-effort), what I assume “real time” means for the above Python package.
https://www.researchgate.net/publication/331983442_Julia_for_robotics_simulation_and_real-time_control_in_a_high-level_programming_language
We demonstrate the use of the Julia programming language to solve this problem by being fast enough for online control of a humanoid robot and flexible enough for prototyping. We present several Julia packages developed by the authors, which together enable roughly 2× realtime simulation of the Boston Dynamics Atlas humanoid robot balancing on flat ground using a quadratic-programming-based controller
This one is actual hardware, and Julia helped, but it seems only for the simulation:
I just got curious seeing this (at least this package doesn’t seem to be for controlling a robot):
Astrobee, NASA’s new free-flying robotic system, will help astronauts reduce time they spend on routine duties, […]
The Astrobee system consists of three cubed-shaped robots