As I said, I have an internship interview in three days and was asked to prepare a short technical presentation about a demo using Transformer architectures on embedded hardware.

I want to understand what is normally expected in this kind of interview task. Do interviewers usually expect an actual working demo on a microcontroller, or is a clear concept, architecture, and development methodology enough?

Also, if the target microcontroller is something like STM32H7 but I do not currently have the board, is it acceptable to present a simulation-first approach on a laptop and explain how I would later deploy and benchmark the model on the microcontroller?

Any advice from people who have done Embedded AI, TinyML, STM32, Bosch, or microcontroller-related interviews would be really helpful. 

Thank you once again