We are now almost done with our digital input smart object. In our application class, we create a field member digitalInput0 to hold a reference to our digital input object instance. We instantiate it, by adding it to the list of LWM2M objects supported by our LWM2M client:

this.lwm2mClient = new Lwm2mClient("MIoT:Sensor:" + this.deviceId, 
  this.coapEndpoint, 
  new Lwm2mSecurityObject(), 
  new Lwm2mServerObject(), 
  new Lwm2mAccessControlObject(), 
  new Lwm2mDeviceObject("Waher Data AB", "SensorLwm2m", 
    this.deviceId, "1.0", "Sensor", "1.0", "1.0"), 
  new DigitalInput( 
    this.digitalInput0 = new DigitalInputInstance(0, 
      this.lastMotion, "Motion Detector", "PIR"))); 

The last thing we need to do, to get our digital input object to work, is to report new values to it. We update our pin update event, to report new values to our digital input object:

bool Input = (value == PinState.HIGH); 
this.lastMotion = Input; 
this.digitalInput0?.Set(Input); 
this.motionResource?.TriggerAll(); 
this.momentaryResource?.TriggerAll();