Maybe. I haven't seen any pricing for W10 IoT yet, but I wouldn't be surprised if they give it away. Interfacing with the hardware is a matter of writing device drivers. I installed a couple of Sendmail servers for a project at work and fought trying to get the copy of SUSE we got from the IBM rep to work with the Dell RAID controller. When my manager asked for an update, I told him "The curly-tailed bitch is giving me grief!". We gave IBM their SUSE back, and ordered a copy of RedHat.
LOL! Why are someone(s) always trying to give programmers grief? Especially females! Is it because we can do something they cant'? I've met few female programmers who were good at it.