The duplicated events are raised within so little timespan (~10 ms) that it is quite difficult to make a workaround without any synchronization or mutex available. Using state isn't fast enough. Other device drivers seems to be using something like this:
def rejectTime = 0
if(debounce) rejectTime = debounce
def recentEvents = device.eventsSince(new Date(now() - rejectTime)).findAll{it.name == eventType}
log.info "Duplicate event rejected"
if(recentEvents.size == 0){
return [ name: eventType, value: 1, isStateChange: true, descriptionText: "Button 1 was $eventType" ]
}
See “New” SmartThings 2018 sensors
But that aren't fast enough either because the first event hasn't been fully processed before the duplicate arrives.
I am open for suggestions.
