My son is big into arduino. He builds everything out of them. He's built me several things for my business. He's made me a device that rotates large aluminum cylinders, 4' in diameter x 80'+ long. He made me a time card system where my guys clock in and out with a proximity card. He's working on a cnc plasma table now. It's amazing what you can do with them. They make a nano version that can be bought for 5 for $10.
It depends on what you want to do. C++ is better if your interests are more academic because, as a C-like language, learning it will make it easier to learn most modern programming languages (because most of the popular ones are also C-like, meaning they share some syntax and features).
BS in Computer Engineering and MS in Electrical Engineering from UTK. Vp of IT for a "small" (30 office, 150 driver) logistics company, which is a fancy title for my real job 'the computer guy'. I do everything from basic IT, to engineering network and software solutions, interfacing with 3rd party software, infrastructure design and build out, help desk, and about twice a year, advising people on what computers to buy for christmas gifts and graduation presents. I do side work for other small businesses as well, anything from basic it work to custom programming / web development. Lately i'm focusing on getting my aws certifications and "updating" my knowledge base to focus more on modern javascript and frameworks / libraries like React and Vue for SPA and PWA development.
