Many many moons ago I tinkered with programming and doing projects with small micro processors. I I programmed in machine language mostly and wrote applications in 6800 8080 and Z80 assembler. That's why I got premature grey hair and back in the 70 when I did it I needed to get a real job to feed my family I haven't done any since then. I know that the price for computing power is continuing to drop and since I can no longer do wood working I been thinking about getting back into the design mode just to do some tinkering. Especially since I am in a semi retired state with a lot of free time. what got me thinking was seeing this advertised. It a $15 singe board 64 bit computer. So what do you guys think can a 68 year old former geek get back into the world of electronics?