Suppose someone came to talk to you and said, “I need your help. I have a Raspberry Pi-based robot and I want to develop a custom Android app to control it.” If you are like me, you’ll think about ...

You’re connected to wifi, and no matter what website you visit and how many apps you open, nothing works. You try to figure out what’s going on and find that your Wi-Fi icon has an exclamation mark, ...