init

wayland/sht4x/init

Initialize sht4x-device.
init
@/init
Initialize sht4x-device.
DEV@/sht4x-device
An sht4x-device.
I2Cxod/i2c/i2c
I²C bus
INITpulse
Initialize
init
DEV
I2C
INIT
OK
OKpulse
Pulse on initialization.
To use the node in your project you should have the wayland/sht4x 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);
        auto wire = getValue<input_I2C>(ctx);

        // Attempt to initialize sht4x module; if attempt fails emit error
        if (!sensor->begin(wire)) {
            raiseError(ctx);
            return;
        }
        
        emitValue<output_OK>(ctx, 1);
    }
}