Internet Connectivity
This may be an Ethernet/LAN cable (standard RJ45 connector) or a USB WiFi adaptor. The
RPi ethernet port is auto-sensing which means that it may be connected to a router or directly
to another computer (without the need for a crossover cable).
USB-Hub
In order to connect additional devices to the RPi, you may want to obtain a USB Hub, which
will allow multiple devices to be used.
It is recommended that a powered hub is used - this will provide any additional power to the
devices without affecting the RPi itself.
USB version 2.0 is recommended. USB version 1.1 is fine for keyboards and mice, but may
not be fast enough for other accessories.
Case
Since the RPi is supplied without a case, it will be important to ensure that you do not use it
in places where it will come into contact with conductive metal or liquids, unless suitably
protected.
Expansion & Low Level Peripherals
If you plan on making use of the low level interfaces available on the RPi, then ensure you
have suitable header pins for the GPIO (and if required JTAG) suitable for your needs.
Also if you have a particular low-level project in mind, then ensure you design in suitable
protection circuits to keep your RPi safe.
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