Yup, you're in that world. Sympathies! It's good you have the background -- that's what you can leverage. Maybe start playing around with a Raspberry Pi for

Yup, you're in that world. Sympathies! It's good you have the background -- that's what you can leverage. Maybe start playing around with a Raspberry Pi for a refresher on the HW and basic software, and go from there. I jumped into it by learning Android from the inside out (via AOSP), and was then fortunate to then be forced to learn it more deeply via client who needed a customized version for their new hardware. This was not according to a grand plan of mine though -- I was just so done with IT that it felt worth the risk. I lowered my hourly rates by 50% for one year in order to get a gig in that space. I looked at the loss as an investment in education. If I didn't make it happen within one year then I'd consider going back to what I had been doing. Paying for food+shelter is a great motivator (the carrot), but the horrible thought of "going back" to IT was even more motivating (the stick). As for the above, YMMV of course. Good luck!