init

wayland/dht20/init

Initialize dht20-device.
init
@/init
Initialize dht20-device.
DEV@/dht20-device
A dht20-device.
INITpulse
Initialize dht20-device.
init
DEV
INIT
OK
OKpulse
Pulse on successful initialization.
To use the node in your project you should have the wayland/dht20 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_INIT

node {

    void evaluate(Context ctx) {
        // The node responds only if there is an input pulse
        if (!isInputDirty<input_INIT>(ctx))
            return;
        
        auto sensor = getValue<input_DEV>(ctx);
        
        if (!sensor->begin()) {
            raiseError(ctx);
            return;
        }
        
        emitValue<output_OK>(ctx, 1);
    }
}