raspberryPi.txt

===== SSH Static IP connection.

+ Enable SSH access in the pi (usually on by default)

+ Set up Ethernet _static IP_ (connect to your local network)
PC <-> Rpi You know both IP addresses.
PC connects to the pi using PUTTY with the static IP.

auto eth0
allow-hotplug eth0
iface eth0 inet static
address 192.168.127.1
netmask 255.255.255.0

+ Add "useDNS no" to the /etc/ssh/sshd_config file fixes slow login attempts.

Restart interfaces!
sudo service networking restart
====== WIFI =====
To configure wireless open the file
/etc/wpa_supplicant/wpa_supplicant.conf
file and add the settings for your network.
sudo ifdown wlan0
sudo ifup wlan0

Set up wireless

allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf


ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
 ssid="Aperture.Guests"
 psk="123123123"
}


set default internet
iface default inet dhcp


===== /etc/network/interfaces =====

auto lo
iface lo inet loopback

auto eth0
allow-hotplug eth0
iface eth0 inet static
address 192.168.127.1
netmask 255.255.255.0

allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

iface default inet dhcp


===== SET UP DHCP SERVER ON THE PI

Putty to the pi and
sudo apt-get update
sudo apt-get install dnsmasq

cd /etc
sudo mv dnsmasq.conf dnsmasq.default
sudo nano dnsmasq.conf

interface=eth0
dhcp-range=192.168.127.11,192.168.127.254,255.255.255.0,12h

sudo service dnsmasq restart

MORE STUFF::
http://www.glennklockwood.com/sa/rpi-wifi-bridge.php

==== Enable I2C and install i2c utilities ====



==== JAVA SETUP ====

Download the JDK8 for ARM processors, install on the pi
Download the DeviceIO and install on the pi

DIO POLICY GPIO+i2C

grant {
        permission jdk.dio.gpio.GPIOPinPermission "*:*";
        permission jdk.dio.DeviceMgmtPermission "*:*", "open";
        permission jdk.dio.i2cbus.I2CPermission "*:*";
};


==== GrovePi and python ====




CREATE BACKUP IMG
https://www.raspberrypi.org/forums/viewtopic.php?f=26&t=5947&start=25

http://www.richardsramblings.com/2013/02/minimalist-raspberry-pi-server-image/

Free Space

df -B1

Minimalist image::

Remove the GUI Modules

sudo apt-get purge xserver.* x11.* xarchiver xauth xkb-data console-setup xinit lightdm lxde.* python-tk python3-tk scratch gtk.* libgtk.* openbox libxt.* lxpanel gnome.* libqt.* libxcb.* libxfont.* lxmenu.* gvfs.* xdg-.* desktop.* tcl.* shared-mime-info penguinspuzzle omxplayer gsfonts
sudo apt-get --yes autoremove
sudo apt-get upgrade

Disable Memory Swapping

sudo swapoff -a
sudo rm /var/swap

Prepare for Final Imaging

sudo rm -f /var/cache/apt/*cache.bin
sudo apt-get --yes autoclean
sudo apt-get --yes clean

sudo find / -type f -name "*-old" |xargs sudo rm -rf
sudo rm -rf /var/backups/* /var/lib/apt/lists/* ~/.bash_history
find /var/log/ -type f |xargs sudo rm -rf
sudo cp /dev/null /etc/resolv.conf



dd if=/dev/mmcblk0 of=/home/YOUR_USERNAME/Desktop/backup.img bs=1M count=2048