jeremypoulter
commented
6 years ago I have added support for the Primo Core in #9, it is a relatively simple process of creating a board variant based on the Arduino.org NRF52 core, however I am not totally sure it is the best method. What is probably needed is a way to use the different Arduino Cores for the different products (generic, Arduino.org and Adafruit Feather) to be used. It is not immediately obvious how to do this.
I can't find anything online about platformio and the Arduino Primo. It's running on the Nordic nRF52 processor so I guess this belongs here.
Product link: http://www.arduino.org/products/boards/arduino-primo