/** * Copyright 2015 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. * * Virtual Thermostat * * Author: SmartThings */ definition( name: "Virtual Thermostat", namespace: "smartthings", author: "SmartThings", description: "Control a space heater or window air conditioner in conjunction with any temperature sensor, like a SmartSense Multi.", category: "Green Living", iconUrl: "https://s3.amazonaws.com/smartapp-icons/Meta/temp_thermo-switch.png", iconX2Url: "https://s3.amazonaws.com/smartapp-icons/Meta/temp_thermo-switch@2x.png" ) preferences { section("Choose a temperature sensor... "){ input "sensor", "capability.temperatureMeasurement", title: "Sensor" } section("Select the heater or air conditioner outlet(s)... "){ input "outlets", "capability.switch", title: "Outlets", multiple: true } section("Set the desired temperature..."){ input "setpoint", "decimal", title: "Set Temp" } section("When there's been movement from (optional, leave blank to not require motion)..."){ input "motion", "capability.motionSensor", title: "Motion", required: false } section("Within this number of minutes..."){ input "minutes", "number", title: "Minutes", required: false } section("But never go below (or above if A/C) this value with or without motion..."){ input "emergencySetpoint", "decimal", title: "Emer Temp", required: false } section("Select 'heat' for a heater and 'cool' for an air conditioner..."){ input "mode", "enum", title: "Heating or cooling?", options: ["heat","cool"] } } def installed() { subscribe(sensor, "temperature", temperatureHandler) if (motion) { subscribe(motion, "motion", motionHandler) } } def updated() { unsubscribe() subscribe(sensor, "temperature", temperatureHandler) if (motion) { subscribe(motion, "motion", motionHandler) } } def temperatureHandler(evt) { def isActive = hasBeenRecentMotion() if (isActive || emergencySetpoint) { evaluate(evt.doubleValue, isActive ? setpoint : emergencySetpoint) } else { outlets.off() } } def motionHandler(evt) { if (evt.value == "active") { def lastTemp = sensor.currentTemperature if (lastTemp != null) { evaluate(lastTemp, setpoint) } } else if (evt.value == "inactive") { def isActive = hasBeenRecentMotion() log.debug "INACTIVE($isActive)" if (isActive || emergencySetpoint) { def lastTemp = sensor.currentTemperature if (lastTemp != null) { evaluate(lastTemp, isActive ? setpoint : emergencySetpoint) } } else { outlets.off() } } } private evaluate(currentTemp, desiredTemp) { log.debug "EVALUATE($currentTemp, $desiredTemp)" def threshold = 1.0 if (mode == "cool") { // air conditioner if (currentTemp - desiredTemp >= threshold) { outlets.on() } else if (desiredTemp - currentTemp >= threshold) { outlets.off() } } else { // heater if (desiredTemp - currentTemp >= threshold) { outlets.on() } else if (currentTemp - desiredTemp >= threshold) { outlets.off() } } } private hasBeenRecentMotion() { def isActive = false if (motion && minutes) { def deltaMinutes = minutes as Long if (deltaMinutes) { def motionEvents = motion.eventsSince(new Date(now() - (60000 * deltaMinutes))) log.trace "Found ${motionEvents?.size() ?: 0} events in the last $deltaMinutes minutes" if (motionEvents.find { it.value == "active" }) { isActive = true } } } else { isActive = true } isActive }