Hey there, what's your experience level with technology so far? That might help commenters give a better, more valuable answer for you!
Hi, I did engineering and currently working in tech writing software. So I'm pretty good with it. I just don't know which platform or resource people generally use as a one-stop solution to understand how different gadgets work if there is one.
Don't use anything with proprietary code, that gives you a good chance to understand everything.