Raspberry Pi Setup (Raspbian 8, Jessie)

Wifi Setup

WPA supplicant

Open /etc/wpa_supplicant/wpa_supplicant.conf

Example format:

update_config=1
country=US
# set location of the control socket (group: users that can use wpa_cli, or just run it as root)
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev

network={
	ssid=[wifi-network-name]
	psk=[encrypted-network-password] # encryption optional? otherwise, just the network password
	priority=[ranking-number] # higher priority => preferred connection
	id_str=[identifier-string] # can be anything
	key_mgmt=[wireless-security-protocol] # e.g. WPA-PSK
	password=[] # ???? might be possible to have a plaintext password, did not experiment with this
}

Generate the encrypted WPA password (psk) using wpa_passphrase, which will output a network interface with a hashed psk.

wpa_passphrase [ssid-name] [password-name]

Run iwgetid to see what wifi network the Pi is connected to.

Network Interfaces

Open /etc/network/interfaces and make sure the following lines are there:

auto wlan0
iface wlan0 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

or for wifi automatic reconnect

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

(Optional) Install a WIFI manager

Raspberry Pi + WICD set-up guide: https://blog.onetwentyseven001.com/easy-wireless-configuration-for-raspberry-pi/#.Wm_iGfaQytE

General WICD guide: https://wiki.archlinux.org/index.php/wicd

Connecting to the Raspberry Pi

Documentation for ways to connect to the pi without a monitor: https://www.raspberrypi.org/documentation/remote-access/

Finding the Raspberry Pi on the network

Find your router's ip address by opening up 'System Preferences'->'Network' on MacOS. On Linux, run hostname -I.

Then run:

sudo nmap -sP [router-ip-addres]/24

You should see a name 'raspberrypi' listed next to an IP address. If not, be sure to sudo, or take a look at the OUI of the MAC address. Raspberry Pi MAC addresses are prefixed with B8:27:EB. The first three octets of the MAC address are the Organizationally Unique Identifier (OUI) for the Raspberry Pi Foundation.

If that doesn't find it / takes too long, check the arp tables:

arp -na | grep b8

If you can log into the Raspberry Pi through ethernet, running hostname -I will give you a list of IP addresses. Try to ssh into the Raspberry Pi using these IP addresses.

If you still have issues connecting the Raspberry Pi to wifi, put only one network to connect to in wpa_supplicant.conf, then run sudo reboot.

Connecting to bluetooth devices

Launch the bluetooth tool

bluetoothctl
agent on # activate bluetooth chip
scan on # look for active bluetooth devices
connect [MAC-address] # connect to bluetooth device

couetilc/raspberryPi