protected override async Task ExecuteAsync(CancellationToken cancellationToken)
{
_hcsr04 = new Hcsr04(_triggerPin, _echoPin, _pinNumberingScheme);
_prevDistance = Distance;
while (!cancellationToken.IsCancellationRequested)
{
try
{
Distance = _hcsr04.Distance.Centimeters;
_communicationObject.Distance = Distance;
}
catch { }
if (_prevDistance <= _borderDistanceCentimeters && Distance > _borderDistanceCentimeters)
{
_communicationObject.ObjectInside?.Reset();
_communicationObject.ObjectOutside?.Set();
if (_communicationObject.BorderCrossedEvent != null)
{
_communicationObject.BorderCrossedEvent(this, BorderCrossed.Outside);
}
}
else
if (_prevDistance > _borderDistanceCentimeters && Distance <= _borderDistanceCentimeters)
{
_communicationObject.ObjectOutside?.Reset();
_communicationObject.ObjectInside?.Set();
if (_communicationObject.BorderCrossedEvent != null)
{
_communicationObject.BorderCrossedEvent(this, BorderCrossed.Inside);
}
}
_prevDistance = Distance;
await Task.Delay(100);
}
}
