is-data-ready
wayland/scd4x-co2-rh-temp/is-data-ready
Check whether new measurement data is available for read-out.
is-data-ready
@/is-data-ready
Check whether new measurement data is available for read-out.
DEV@/scd4x-device
An SCD4X device.
UPDpulse
Update.
OKpulse
Pulse on successful check of data availability.
Readyboolean
True if new data available, false otherwise.
C++ implementation
#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD
node {
void evaluate(Context ctx) {
// The node responds only if there is an input pulse
if (!isInputDirty<input_UPD>(ctx))
return;
auto sensor = getValue<input_DEV>(ctx);
bool isDataReady = false;
auto sensorError = sensor->getDataReadyFlag(isDataReady);
if (sensorError) {
raiseError(ctx);
return;
}
emitValue<output_OK>(ctx, 1);
emitValue<output_Ready>(ctx, isDataReady);
}
}