Have been programming since 1970. Originally in Fortran and NEAT assembler. Started teaching maths and computer in science in 1973. Gave up the computer science and focused on maths. Computer technology became a hobby. Recently dug out my raspberry pi of 10 years and began to program in C++ and assembler. Started a project to build a head unit for our ancient SAAB. Got caught up in all sorts of electronics about which I knew little . Found this forum after watching Bill's excellent presentations and decided I could probably learn a lot from joining with like minded people.