In this chapter, you've seen what it means to set a Raspberry Pi free from a screen and keyboard by making it headless. You set up an SD card to connect to your Wi-Fi and to open up the SSH port so you can connect to it.
You've learned how to use raspi-config to personalize your Pi and secure it with your own password. You then made the first small steps in looking around the Linux system it has running on it. You also ensured the Raspberry Pi is up to date and running the most current software.
You then learned how to safely put the Pi into shutdown mode, so that filesystem damage does not occur when you unplug it.
In the next chapter we will look at ensuring you don't loose valuable robot code or configuration when things go wrong. We will learn about what can go wrong, and how to use Git, SFTP and SD Card back ups to protect our hard work.
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