/ { host_interface { compatible = "gpio-outputs"; status = "okay"; timesync: pin_0 { gpios = <&arduino_header 10 GPIO_ACTIVE_HIGH>; label = "Controller to host timesync pin"; }; alternate_toggle: pin_1 { gpios = <&arduino_header 11 GPIO_ACTIVE_HIGH>; label = "alternate toggle pin"; }; }; }; &uart0 { compatible = "nordic,nrf-uarte"; current-speed = <1000000>; status = "okay"; hw-flow-control; };