* add line to config.txt: "enable_uart=1" to enable serial console (https://learn.adafruit.com/adafruits-raspberry-pi-lesson-5-using-a-console-cable/enabling-serial-console)
* Create file in / called "ssh"
* Create file wpa_supplicant.conf:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=GB

network={
     ssid="SSID"
     psk="Your WPA/WPA2 security key"
     key_mgmt=WPA-PSK
}

* sudo raspi-config - interfacing options - enable I2C
* sudo apt update && sudo apt install i2c-tools
* git clone https://github.com/pimoroni/py-smbus and run setup.py from library directory
* add user to i2c group