====== Raspberry Pi ======

{{ :admin:linux:raspberry_gpio_pins.png?direct&100|}}

===== Install =====
 
<code>
pv 2014-12-24-wheezy-raspbian.img | sudo dd bs=4M of=/dev/mmcblk0

#default password raspberry
ssh pi@192.168.0.110
sudo raspi-config
sudo apt-get install libnss-mdns htop screen vim ipython ack-grep openvpn nmap locate
</code>

===== WLAN on Boot =====

==== /etc/rc.local ====

<code>
/sbin/watch_wlan&
</code>

==== /sbin/restart_wlan ====

<code>
date >> /tmp/wlan.log

ifdown wlan0 
ifup wlan0 
ifdown wlan0 
ifup wlan0 
</code>

==== /etc/rc.local ====

<code>
#!/bin/sh -e

#_IP=$(hostname -I) || true
#if [ "$_IP" ]; then
#  printf "My IP address is %s\n" "$_IP"
#fi

echo `date` "start" >> /tmp/wlan.log
_AP=$(iwconfig |grep "Access Point") || true
#_AP=$(iwconfig 2>/dev/null |grep "Access Point: Not-Associated")
echo `date` "$_AP" >> /tmp/wlan.log
while [ "$_AP" == "" ]; do
  echo `date` "waiting for wlan0" >> /tmp/wlan.log
  sleep 10
done

_AP=$(iwconfig 2>/dev/null |grep "Access Point: Not-Associated") || true

while [ "true" ]; do
  echo `date` "$_AP" >> /tmp/wlan.log
  if [ "$_AP" ]; then
    /sbin/restart_wlan >> /tmp/wlan.log
  fi
  sleep 60
  _AP=$(iwconfig 2>/dev/null |grep "Access Point: Not-Associated") || true

done
echo `date` "stop" >> /tmp/wlan.log
</code>

==== Browser ====

  * [[http://stackoverflow.com/questions/20429522/launching-web-browser-from-linux-terminal-using-ssh|Launching Web Browser from Linux Terminal (using ssh)]]
  * [[http://www.raspberry-projects.com/pi/pi-operating-systems/raspbian/gui/auto-run-browser-on-startup|Configuring LXDE to start the Midori browser on login]]
  * [[http://my.pi3g.com/en/quick-start/raspberry-pi-display-addon/faq/|pi3g Display FAQ]]