====== Installing Raspian and enabling CAN bus ======
===== micro SD card setup =====
  * Download Raspian Lite from: [[https://www.raspberrypi.org/downloads/raspbian/]]
  * Flash image to micro SD card, for example using: [[https://www.balena.io/etcher/|Etcher]]
  * Add empty text file named ''%%ssh%%'' to the boot partition of the micro SD card, this enables ssh communication with the Pi.

===== Basic Raspian setup =====
  * Insert the micro SD card to the Raspberry Pi and power it on. Use an ethernet cable to connect.
  * Access ssh on the Raspberry. Default username is ''%%pi%%'', password is ''%%raspberry%%'', and hostname is ''%%raspberrypi%%''.
  * Run ''%%sudo raspi-config%%'' and change password and timezone. Perhaps also run an update.

===== CAN setup for StratoPi CAN =====

  * Run ''%%sudo raspi-config%%'' and enable SPI
  * Add these lines to the end of ''%%/boot/config.txt%%'':

  dtoverlay=mcp2515-can0,oscillator=16000000,interrupt=25
  dtoverlay=spi-bcm2835-overlay

  * Add these lines to the end of ''%%/etc/network/interfaces%%'' for CAN to automatically start at boot with bitrate 125kbps(used by Torqeedo Interface Card):

  auto can0
  iface can0 inet manual
  pre-up /sbin/ip link set can0 type can bitrate 125000
  up /sbin/ifconfig can0 up
  down /sbin/ifconfig can0 down

  * Reboot
===== Non-root access to serial ports =====
  * Add user to ''dialout'' group
''sudo usermod -a -G dialout $USER''
  * May also need to add user to ''tty'' group.
''sudo usermod -a -G tty $USER''

===== Useful links =====
  * [[https://wiki.rdu.im/_pages/Application-Notes/Software/can-bus-in-linux.html|CAN Bus in Linux]]
  * [[https://www.sferalabs.cc/files/strato/doc/stratopi-can-user-guide.pdf|Strato Pi CAN user guide]]