By now, many of you may have guessed that I spend a lot of time at the command line. After all, it’s my day-to-day work and my pastime at home. Given that I spend a lot of time at the command line, I don’t like to open a web browser to access some device’s management interface. I am much more at home configuring devices via the command-line tool. Even if this is not your preference, a lot of enterprise-grade equipment must have its initial configuration set up via a serial console, which does not require Ethernet.
Having serial access to the Raspberry Pi may be a good idea for the security sensor in Chapter 5: this way ...