Hi there, I have got my raspberry pi starter kit from pimoroni through the post today, and so did my arduboy which I also ordered. I wanted to code for Arduboy on the Raspberry Pi so I downloaded the Arduino IDE (ARM) onto it successfully, but i’m having some trouble adding libraries and boards. I’ll add some screenshots below to show you.
It looks like you don’t have the Arduboy library installed properly or in the right place.
It should be in a folder named Arduboy in the libraries folder in your sketchbook.
According to your screen shot of your IDE preferences, your Sketchbook location is /home/pi/sketchbook
What version of the Arduino IDE are you using? I’m getting the feeling that it is quite old. You should be using version 1.6.10 or higher. 1.8.0 is the latest. You can download the latest IDE from: https://www.arduino.cc/en/Main/Software