@Gromett
Are you a professional with all these whizz bangs, or are you a self taught hobbyist.
Whichever, I'm well impressed.
I got a BTEC onc in electronics back in the late 80's, Got my RAE C&G when I was 14. But I left the electronics field in 1990 when I got a job writing games I have been in computers ever since. My memory of the details of electronics is therefore extremely rusty but digital electronics is much simpler than analogue. And with my Assembly language experience I understand microprocessors at a low level (although rusty on that as well). That is part of the reason I want to do this to refresh my memory. I also used to love electronics until it became a job. I repaired TV/VCRs for a while and that was enough to put me off it for a long time.