Getting Up to No Good - Raspberry Pi for Secret Agents - page 9

• Add to Rastrack : This is a completely optional way of adding your Pi to an
online map ( http://rastrack.co.uk ) that tracks where people are using
Raspberry Pis around the word.
• Overclock : This option allows you to add some turbo boost to the Pi. Only
experiment with overclocking once you have established that your system
runs stable at default speed. Also note that while overclocking will not void
the warranty of the Pi, it could reduce its lifetime.
The Advanced Options menu contains the following options:
• Overscan : If you see thick black borders around the blue background on
your monitor, select this option and disable to make them go away the next
time you boot the Pi.
• Hostname : This option allows you to change the name of your Pi as it
appears to other computers on your local network. It is up to your home
router to translate this name into the correct IP address of the Pi as we will
see later in this chapter. The default hostname is raspberrypi .
• Memory Split : This option lets you change how much of your Pi's memory
the Graphics Processing Unit ( GPU ) is allowed to use. To use the camera
module or play HD movies, the GPU needs 128 MB of the RAM.
• SSH : Select this option to enable or disable the Secure Shell service. SSH is
a very important part of our setup and allows us to log in remotely to the
Pi from another computer. It is active and enabled by default, so leave this
option alone for now.
• SPI : This option enables support for a certain group of add-on boards that
connects to the GPIO header of the Pi.
• I2C : This option enables support for a group of add-on chips that
communicate via I2C such as real-time clock modules.
• Serial : This option allows or disallows communicating with the Pi via a serial
cable and terminal application running on another computer.
• Audio : This option can be used to force the audio output through either
HDMI or the analog audio jack.
• Update : This option will try to upgrade the raspi-config application itself
to the latest version. You can leave this option alone for now as we will make
sure all the software is up to date later in this chapter.
Once you're happy with the configuration, select Finish and Yes to reboot the Pi.
At the raspberrypi login prompt, enter pi as the username and enter the password
you chose.