>Depends on their goals. I'm in this demographic and am confused why are you selling me on something less capable. >Considering there are absolutely zero HCCI

>Depends on their goals. I'm in this demographic and am confused why are you selling me on something less capable. >Considering there are absolutely zero HCCI engines in mass production This is false and trivially googled. >You're making it out to be way more important than it is The parent was requesting a concrete example which quite clearly can not be done on an Arduino but is trivial with an FPGA.