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ZUNO_SIREN()

This macro is used to setup binary switch channel of type siren for Z-Uno board using ZUNO_SETUP_CHANNELS. Z-Uno understands two ways to define a channel: using getter function and using a variable.

With getter definition the getter function is called each time a value is requested. This allows to do some calculus before returning a value.
With variable definition Z-Uno will automatically return the variable status. This allows to minimize your code.

ZUNO_SIREN(getter, setter) getter pointer to a user defined function, which is supposed to return current value for this channel. setter pointer to a user defined function, which is called when new value is received for this channel. Functions getter should return 0 for Off and any non-zero value for On BYTE getter(void) Functions setter accepts next values:

0 for off
1-99 for on
>=100 - reserved value

void setter(BYTE value)

        ZUNO_SETUP_CHANNELS(ZUNO_SIREN(getterFunction, setterFunction));
           
void setup() {
    ...
}

void loop() {
    ...
}

BYTE getterFunction() {
    return currentValue;
}

void setterFunction(BYTE newValue) {
    ...
}

ZUNO_SIREN(variable, NULL) variable variable that stores the current value for this channel. 0 for Off and any non-zero value for On Variable change can be detected using function zunoIsChannelUpdated(channelNum).

        ZUNO_SETUP_CHANNELS(ZUNO_SIREN(alarm, NULL));

byte alarm = 0;

void setup() {
    ...
}

void loop() {
    ...
    alarm = 1;
    ...
}

Channel generated using this macro will have Z-Wave Device Class GENERIC_TYPE_SWITCH_BINARY / SPECIFIC_TYPE_SIREN with Switch Binary Command Class. You can make a battery power siren using FLiRS power mode (see ZUNO_SETUP_SLEEPING_MODE).