real time programming and embedded software

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Hi /g/,

I graduated as a mechanical engineer from Germany and apply for jobs at the moment.
The field I am interested in often requires experience in
-real time programming
-embedded software

As a mechanical engineer, programming and software development isn't something we tapped into very deply and I have some questions about the terminology.
I just want to make sure that I have actually done this things and don't want to embarrass myself during the interview.

I have programmed Kuka robots in the Programming language KRL (Kuka robotic language) I also written a software that with which a robot can be controlled by a gamepad and publish a paper (together with a PhD) about the pros and cons of such a device in comparison to the hand controller. For this doesn't qualify as "real time programming", but is it embedded software?

I also wrote a programm on an arduino that lest the arduino work as a USB master using a transiever. The arduino placed my data into registries and with other registries created the packages for communications. I wrote the entire USB-driver and handled the entire USB-communication (as well as creating the circuit). Does this qualify as real time programming?

Lastly, I wrote control software for assembly lines and other smaller systems that included in SPS.

Don't rage. I used programming only for the means to an end and I am not a software developer.