c++ is the standard for most industrial robotics and microcontrollers in my experience, so I'd say that's your answer. Most of the ones that need something more

c++ is the standard for most industrial robotics and microcontrollers in my experience, so I'd say that's your answer. Most of the ones that need something more are running that code on some form of linux so you can ssh into them for debugging. A growing portion are using ROS with their linux