Setup:
    Install SAMD boards in Arduino IDE
    Install Arduino Low Power
    Install TemperatureZero
    Install libraries from MultiNode/Libraries

RasPi:
    # Install https://www.airspayce.com/mikem/bcm2835/ on Raspberry Pi
    sudo apt-get install pip
    pip install numpy pyLoraRFM9x pyblake2 toml

    C++ programs need to be executed with sudo, or set permissions to use bcm2835 as user