Code
Original files found on internet are designed for Arduino nano and Pakronics Australia have developed compatible code for Arduino Every board.

Library OTTO with Arduino Nano Every board code

Pakronics_Otto.zip
2MB
Binary
OTTO Library for Arduino Nano Every by Pakronics

If you don't know how to install Arduino library for OTTO

Legacy Arduino Nano code

You can download the codes for different functions of Otto from here. You will need to install the libraries in arduino before using the codes provided.
Libraries_V9.zip
109KB
Binary
Libraries
Otto.zip
66KB
Binary
Codes
In case you don't know to install libraries, you can take a look at our tutorial here.