Raspberry Pi

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Startup

Remotely: provide DHCP over Ethernet
Access via ssh, Username: pi Password: raspberry
First time, the device propose to run raspi-config

sudo raspi-config


Then, better to renew SSH server keys, see RPi remote access

sudo rm /etc/ssh/ssh_host_* && sudo dpkg-reconfigure openssh-server

Wi-Fi

Using Wi-Pi
See user manual for Raspbian.
Edit /etc/network/interfaces and add wlan0 section similar to:

auto wlan0
iface wlan0 inet dhcp
wpa-ssid <name of your WiFi network>
wpa-psk <password of your WiFi network>

Then

sudo /etc/init.d/networking restart

NFC

apt-get install git autoconf libtool gcc libusb-dev
apt-get install dpkg-dev debhelper dh-autoreconf
git clone https://code.google.com/p/libnfc/
cd libnfc
dpkg-buildpackage -b -uc -us
cd ..
dpkg -i *deb

For a SCL3711:

modprobe -r pn533
echo blacklist pn533 > /etc/modprobe.d/pn533-blacklist.conf

SPI

Edit /etc/modprobe.d/raspi-blacklist.conf and comment:

#blacklist spi-bcm2708

Reboot
There should now be some /dev/spi*

$ ls /dev/spi*
/dev/spidev0.0 /dev/spidev0.1


Test:

wget "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob_plain;f=Documentation/spi/spidev_test.c" -O spidev_test.c

Edit the file to point to /dev/spidev0.0

gcc -o spidev_test spidev_test.c
sudo ./spidev_test

We should get some hex dump about dead beef and bad food ;-)
If test fails, see here for updating stuffs:

GPIO pinout, see also here

With Python: