MSA-2270: Car alarm that utilises two presence sensors, one for the car, the other for the driver. If the car departs without a driver notification is sent.

smartapps/carsecurity/car-alarm.src/car-alarm.groovy

@@ -0,0 +1,110 @@
+/**
+ *  Copyright 2017 Greg & SmartThings
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ *  in compliance with the License. You may obtain a copy of the License at:
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed
+ *  on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
+ *  for the specific language governing permissions and limitations under the License.
+ *
+ *  Ridiculously Automated Garage Door
+ *
+ *  Author: Greg
+ *  Date: 2017-06-10
+ *
+ * Monitors departure of the car and notifies if the driver didn't depart with it ;)
+ *
+ */
+
+definition(
+    name: "Car Alarm",
+    namespace: "carsecurity",
+    author: "Greg",
+    description: "Monitors departure of the car and notifies if the driver didn't depart with it ;)",
+    category: "Safety & Security",
+    iconUrl: "http://cdn.device-icons.smartthings.com/Transportation/transportation8-icn.png",
+    iconX2Url: "http://cdn.device-icons.smartthings.com/Transportation/transportation8-icn@2x.png"
+)
+
+preferences {
+
+	section("Car and Driver") {
+		input "car", "capability.presenceSensor", title: "Car Presence sensor", description: "Which car?", multiple: false, required: false
+		input "driver", "capability.presenceSensor", title: "Driver Presence sensor", description: "Which Driver?", multiple: false, required: false
+		
+	}
+	section("False alarm threshold (optional, defaults to 130 seconds)") {
+		input "falseAlarmThreshold", "number", title: "Number of seconds", required: false
+	}
+	section("Minimum time between messages (optional, defaults to 10 minutes)") {
+		input "frequency", "decimal", title: "Minutes", required: false
+	}
+}
+
+def installed() {
+	log.trace "installed()"
+	subscribe()
+}
+
+def updated() {
+	log.trace "updated()"
+	unsubscribe()
+	subscribe()
+}
+
+def subscribe() {
+	subscribe(car, "presence", carPresence)
+	//subscribe(drivers, "presence.present", driverPresence)
+	
+}
+
+def carPresence(evt)
+{
+	//log.info "$evt.name: $evt.value"
+	// time in which there must be no "not present" events in order to open the door
+	
+	
+
+	final carAlarmInterval = falseAlarmThreshold ? falseAlarmThreshold : 130
+
+	if (evt.value == "present") {
+		log.trace("present");	
+	}
+	else {
+		log.trace("car not present");
+		if(driver.currentPresence  == "present"){
+        
+			def car = getCar(evt)
+
+			if (frequency) {
+				def lastTime = state[evt.deviceId]
+				if (lastTime == null || now() - lastTime >= frequency * 60000) {
+					sendMessage(car.displayName)
+				}
+			}
+			else {
+				sendMessage(car.displayName)
+			}
+
+		}
+		
+	}
+}
+
+private sendMessage(carName)
+{	
+	Map options = [:]
+	String msg  = "${carName} HAS DEPARTED WITHOUT THE DRIVER!"
+	log.trace "sendMessage()"
+	
+	options.method = 'push'
+	sendNotification(msg, options)
+}
+
+private getCar(evt)
+{
+	car.find{it.id == evt.deviceId}
+}