Raspberry pi

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Revision as of 15:32, 12 July 2013 by WikiSysop (Talk)

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I got myself a RaspBerry Pi. This article is about the things that I learned.

Contents

Connect it to a monitor

You can connect your raspberry pi to a HDMI monitor using an HDMI cable. In this case the resolution will be great. You can also use the composite cable. In this case the resolution will be medium. Take care that you do not buy a HDMI -> VGA adapter and try to use a VGA monitor. VGA is analog, HDMI is digital. This means you will need a HDMI -> VGA connector not adapter. This difference can easily cost you some weeks of waiting for a device which will prove worthless in the end.

No start without bootable SD card

When I got my Pi, I just started it to see if it works. I did not have an SD card in it and I expected it to show

No bootable medium found

Or something similar. Beware! The Pi will not even start without a bootable SD card in it. Also an SD card that is not bootable does not help. Do not send the Pi back, create a bootable SD card and boot from it.

Create a bootable SD card

http://www.raspberrypi.org/quick-start-guide is incomplete, it does not tell you how to dump your file to SD card, here is how I tried:

dd if=2012-12-16-wheezy-raspbian.img of=/dev/sdc

This worked, the OS came up.

Password

User is pi, password is raspberry

Network

Playing with it in the default config:

tweedleburg:~ # nmap 192.168.178.0/24

Starting Nmap 6.01 ( http://nmap.org ) at 2013-05-23 17:51 CEST
[...]

Nmap scan report for 192.168.178.43
Host is up (0.0036s latency).
Not shown: 999 closed ports
PORT   STATE SERVICE
22/tcp open  ssh
MAC Address: B8:27:EB:06:57:BA (Raspberry Pi Foundation)

NFS Server

Using it as NFS Server I get 8 MB/s when writing on it using the command

dd if=/dev/zero of=datei bs=4096 count=10000

Interfaces

  • 1 micro-USB for power supply
  • 1 HDMI for video out
  • 1 yellow composite video out

ideas what to do with it

See also