Hello, this is Kovid. I am a Hardware Product Developer.
I had developed a product right from scratch and which is currently into the market and in bulk production.
I had worked on many micro controllers including RPi, stm, esp, arduino, etc. Also I use to write my own firmware which includes self created libraries.
Secondly, in some controller I wrote Python script to interface with peripherals.
I have a knowledge of various A/D sensors and their interface with microcontrollers, infact the product which I developed have arrays of different types of sensors.