Raspberry Pi Getting Started Guide
Page 6
2. Raspberry Pi Advanced Setup (Geeks only)
2.1.
Finding hardware and setting up
You'll need a preloaded SD card, USB keyboard, TV/Monitor (with HDMI/ DVI/ Composite/SCART
input), and power supply (USB charger or a USB port from a powered USB Hub or another
computer). You'll likely also want a USB mouse, a case, and a USB hub (a necessity for Model A).
A powered USB hub will reduce the demand on the RPi. To connect to the Internet, you'll need
either an Ethernet/LAN cable (Model B) or a USB WiFi adaptor (either model).
When setting up, it is advisable to connect the power after everything else is ready.
2.2.
Serial connection
The Serial Port is a simple and uncomplicated method to connect to the RPi. The communication
depends on byte wise data transmission, is easy to setup and is generally available even before
boot time.
2.2.1. First interaction with the board
Connect the serial cable to the COM port in the RPi, and connect the other end to the COM port or
USB Serial Adapter in the computer.
2.2.2. Serial Parameters
The following parameters are needed to connect to the RPi. All parameters
except
Port_Name
and
Speed
are default values and may not need to be set.
Port_Name
: Linux automatically assigns different names for different types of serial connectors.
Choose your option:
Standard Serial Port: ttyS0 ... ttySn
USB Serial Port Adapter: ttyUSB0 ... ttyUSBn
Speed: 115200
Bits: 8
Parity: None
Stop Bits: 1
Flow Control: None
The Serial Port is generally usable by the users in the group
dialout
. To add oneself to
the group
dialout
the the following command needs to be executed with
root
privileges:
$useradd -G {dialout} your_name
2.2.3. Super Easy Way using GNU Screen
Enter the command below into a terminal window
screen Port_Name 115200
