Learn Arduino, Raspberry Pi, or CAD with these e-books that are on sale

Technology is constantly changing, with everything from cars to homes becoming smarter by the day. If you're thinking, "Yeah, but Facebook, Google, and Amazon are recording all of our personal data in the process," you're not wrong. But don't let that taint your view of technology as a whole. You can still get the convenience and flexibility of the coolest tech without them — just make it yourself.
Platforms like Raspberry Pi and Arduino are making DIY tech easier and more affordable than