Hi, I think you nailed the issue on the head by enabling the x86 board to bet turned off. I was looking for a solution like this for my solar powered boat that will do some science data collection. See https://community.emlid.com/t/questions-about-navio-for-solar-powered-boat/2128 I'm new to Arduino so please bear with me if some of the answers to my question are obvious. 1) Will code written and available for the Arduino UNO be reusable/easily ported to the 101? For example, can I port this Geo fencing code to the 101 - https://github.com/openhomeautomati...blob/master/geo_fencing_io/geo_fencing_io.ino 2) Can I use Arduino shields with the 101 on the board like: https://www.cooking-hacks.com/projects/arduino-realtime-gps-gprs-vehicle-tracking/ https://www.adafruit.com/product/2636 Will the 101 power the shield while keeping the x86 board off? 3) If I add a flight computer like the Ardupilot, could I turn on/off the 101 on the 86 board with it the Ardupilot attached? My issue is I would like to keep navigation control with a low power Arduino, even it means adding an Ardupilot that can turn on/off the x86 board as desired.