get-speed-kmph

wayland/gps/get-speed-kmph

Read speed in kilometres per hour.
get-speed-kmph
@/get-speed-kmph
Read speed in kilometres per hour.
GPS@/gps-device
A gps-device.
UPDpulse
Update.
get-speed-kmph
GPS
UPD
kmph
Done
Donepulse
Pulse on successful read. Will only pulse if speed valid.
kmphnumber
Speed in kilometres per hour.
To use the node in your project you should have the wayland/gps library installed. Use the “File → Add Library” menu item in XOD IDE if you don’t have it yet. See Using libraries for more info.

C++ implementation

#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD

node {

    void evaluate(Context ctx) {
        if (!isInputDirty<input_UPD>(ctx))
            return;

        auto gps = getValue<input_GPS>(ctx);

        if (gps->speed.isValid()){
            emitValue<output_kmph>(ctx, gps->speed.kmph());
            emitValue<output_Done>(ctx, 1);
        }
    }
}