I just happened to remember that these boards had to have a special driver for some reason.

Anyway I'm just now getting back into it. I'm glad I did too because I can't find them that cheap anymore. They were like $6 a piece so I bought a bunch just to play with at that price. I think I currently have over a dozen Arduino UNO boards. I was getting into robotics in 2015 pretty seriously. I'm not clear about what's going on either. So if a motor blows it's not going to take the UNO with it. I drive almost everything through opto-couplers anyway just to isolate everything. I have a lot more incentive to put time and effort into programing and designing electronic circuits knowing that if I blow an UNO I'll have a rapid replacement ready to go. I'm glad I did because those were pretty good prices and I like having a lot of them around so I don't need to take apart older projects to build new ones. And then I think I had some extra cash and decided to get the rest. And when they arrived and looked to be really well made and functioned perfectly I bought some more. I do recall that I didn't buy them all at once. Apparently I spent $96 just on the UNO boards. I know I only paid $6 a piece which is rock bottom prices. I just counted, and I actually have 16 of the UNO boards. But when you want to buy a dozen or so boards you can't help but go for the best price. I sometimes feel guilty and hope that I didn't support some kind of slave labor in China.

Install ch340 driver windows 7