SmartThings Community

Deep Freezer Monitor


(Jason Walters) #1

We had our deep freezer outlet trip a few times for various reasons so I kept saying I was gong to add a sensor.

I purchased a Fibaro FGK-101 and a Vtech temp sensor

We have a Haier freezer and in the back of the lid is a small cover which covers the hole where they fill the lid with foam insulation.

I used a long 1/4 inch drill bit to make a hole through the foam about 7 inches inward. I then drilled a hole that lined up with that path on the inside door.

I then fished the wire through the hole. to make this easier I used a flexible claw pickup tool that you can find at Lowes or Home Depot.

After getting the wire fished through before I attached the rubber grommet to hold it in place I used a can of great stuff foam and stuck the nozzel in the hole to fill up foam I drilled.

I then used a rubber grommet to hold the sensor in place.

I held the cable to the back of the freezer with self adhesive zip tie brackets which connected to the open close sensor on the side of the freezer.

This is the handler I used.

 *  Fibaro Door/Window Sensor ZW5
 *  Copyright 2016 Fibar Group S.A.
 *  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:
 *  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.
metadata {
	definition (name: "Jason Fibaro Door/Window Sensor ZW5 with Temperature", namespace: "fibargroup", author: "Fibar Group S.A.", ocfDeviceType: "") {
		capability "Battery"
		capability "Contact Sensor"
		capability "Sensor"
        capability "Configuration"
        capability "Tamper Alert"

        capability "Temperature Measurement"

		fingerprint deviceId: "0x0701", inClusters: "0x5E, 0x85, 0x59, 0x22, 0x20, 0x80, 0x70, 0x56, 0x5A, 0x7A, 0x72, 0x8E, 0x71, 0x73, 0x98, 0x2B, 0x9C, 0x30, 0x31, 0x86", outClusters: ""
        fingerprint deviceId: "0x0701", inClusters: "0x5E, 0x85, 0x59, 0x22, 0x20, 0x80, 0x70, 0x56, 0x5A, 0x7A, 0x72, 0x8E, 0x71, 0x73, 0x98, 0x2B, 0x9C, 0x30, 0x31, 0x86, 0x84", outClusters: ""//actual NIF

	simulator {


    tiles(scale: 2) {
    	multiAttributeTile(name:"FGK", type:"lighting", width:6, height:4) {//with generic type secondary control text is not displayed in Android app
        	tileAttribute("", key:"PRIMARY_CONTROL") {
                attributeState("open", label: "open", icon:"", backgroundColor:"#e86d13")
                attributeState("closed", label: "closed", icon:"", backgroundColor:"#00a0dc")

            tileAttribute("device.tamper", key:"SECONDARY_CONTROL") {
				attributeState("detected", label:'tampered', backgroundColor:"#00A0DC")
				attributeState("clear", label:'tamper clear', backgroundColor:"#CCCCCC")

        valueTile("battery", "device.battery", inactiveLabel: false, width: 2, height: 2, decoration: "flat") {
            state "battery", label:'${currentValue}% battery', unit:""

        valueTile("temperature", "device.temperature", inactiveLabel: false, width: 2, height: 2) {
			state "temperature", label:'${currentValue}°F',
				[value: 31, color: "#153591"],
				[value: 44, color: "#1e9cbb"],
				[value: 59, color: "#90d2a7"],
				[value: 74, color: "#44b621"],
				[value: 84, color: "#f1d801"],
				[value: 95, color: "#d04e00"],
				[value: 96, color: "#bc2323"]

        main "FGK"
        details(["FGK","battery", "temperature"])

def installed() {
	sendEvent(name: "tamper", value: "clear", displayed: false)

def updated() {
	def tamperValue = device.latestValue("tamper")
    if (tamperValue == "active") {
    	sendEvent(name: "tamper", value: "detected", displayed: false)
    } else if (tamperValue == "inactive") {
    	sendEvent(name: "tamper", value: "clear", displayed: false)

// parse events into attributes
def parse(String description) {
	log.debug "Parsing '${description}'"
    def result = []

    if (description.startsWith("Err 106")) {
		if (state.sec) {
			result = createEvent(descriptionText:description, displayed:false)
		} else {
			result = createEvent(
				descriptionText: "FGK failed to complete the network security key exchange. If you are unable to receive data from it, you must remove it from your network and add it again.",
				eventType: "ALERT",
				name: "secureInclusion",
				value: "failed",
				displayed: true,
	} else if (description == "updated") {
		return null
	} else {
    	def cmd = zwave.parse(description, [0x31: 5, 0x56: 1, 0x71: 3, 0x72: 2, 0x80: 1, 0x84: 2, 0x85: 2, 0x86: 1, 0x98: 1])

    	if (cmd) {
    		log.debug "Parsed '${cmd}'"

def zwaveEvent(physicalgraph.zwave.commands.securityv1.SecurityMessageEncapsulation cmd) {
	def encapsulatedCommand = cmd.encapsulatedCommand([0x71: 3, 0x84: 2, 0x85: 2, 0x98: 1])
	if (encapsulatedCommand) {
		return zwaveEvent(encapsulatedCommand)
	} else {
		log.warn "Unable to extract encapsulated cmd from $cmd"
		createEvent(descriptionText: cmd.toString())

def zwaveEvent(physicalgraph.zwave.commands.crc16encapv1.Crc16Encap cmd)
    def versions = [0x31: 5, 0x72: 2, 0x80: 1, 0x86: 1]
	def version = versions[cmd.commandClass as Integer]
	def ccObj = version ? zwave.commandClass(cmd.commandClass, version) : zwave.commandClass(cmd.commandClass)
	def encapsulatedCommand = ccObj?.command(cmd.command)?.parse(
	if (!encapsulatedCommand) {
		log.debug "Could not extract command from $cmd"
	} else {

def zwaveEvent(physicalgraph.zwave.commands.notificationv3.NotificationReport cmd) {
	//it is assumed that default notification events are used
    //(parameter 20 was not changed before device's re-inclusion)
    def map = [:]
    if (cmd.notificationType == 6) {
    	switch (cmd.event) {
        	case 22:
    = "contact"
                map.value = "open"
                map.descriptionText = "${device.displayName} is open"

            case 23:
    = "contact"
                map.value = "closed"
                map.descriptionText = "${device.displayName} is closed"
    } else if (cmd.notificationType == 7) {
    	switch (cmd.event) {
        	case 0:
    = "tamper"
                map.value = "clear"
                map.descriptionText = "Tamper alert cleared"

        	case 3:
    = "tamper"
                map.value = "detected"
                map.descriptionText = "Tamper alert: sensor removed or covering opened"


def zwaveEvent(physicalgraph.zwave.commands.batteryv1.BatteryReport cmd) {
	def map = [:] = "battery"
	map.value = cmd.batteryLevel == 255 ? 1 : cmd.batteryLevel.toString()
	map.unit = "%"
	map.displayed = true

def zwaveEvent(physicalgraph.zwave.commands.wakeupv2.WakeUpNotification cmd) {
    def event = createEvent(descriptionText: "${device.displayName} woke up", displayed: false)
    def cmds = []
    cmds << encap(zwave.batteryV1.batteryGet())
    cmds << "delay 500"
    cmds << encap(zwave.sensorMultilevelV5.sensorMultilevelGet(sensorType: 1, scale: 0))
    cmds << "delay 1200"
    cmds << encap(zwave.wakeUpV1.wakeUpNoMoreInformation())
    [event, response(cmds)]

def zwaveEvent(physicalgraph.zwave.commands.manufacturerspecificv2.ManufacturerSpecificReport cmd) {
	log.debug "manufacturerId:   ${cmd.manufacturerId}"
    log.debug "manufacturerName: ${cmd.manufacturerName}"
    log.debug "productId:        ${cmd.productId}"
    log.debug "productTypeId:    ${cmd.productTypeId}"

def zwaveEvent(physicalgraph.zwave.commands.manufacturerspecificv2.DeviceSpecificReport cmd) {
	log.debug "deviceIdData:                ${cmd.deviceIdData}"
    log.debug "deviceIdDataFormat:          ${cmd.deviceIdDataFormat}"
    log.debug "deviceIdDataLengthIndicator: ${cmd.deviceIdDataLengthIndicator}"
    log.debug "deviceIdType:                ${cmd.deviceIdType}"

    if (cmd.deviceIdType == 1 && cmd.deviceIdDataFormat == 1) {//serial number in binary format
		String serialNumber = "h'"

        cmd.deviceIdData.each{ data ->
        	serialNumber += "${String.format("%02X", data)}"

        updateDataValue("serialNumber", serialNumber)
        log.debug "${device.displayName} - serial number: ${serialNumber}"

def zwaveEvent(physicalgraph.zwave.commands.versionv1.VersionReport cmd) {
    updateDataValue("version", "${cmd.applicationVersion}.${cmd.applicationSubVersion}")
    log.debug "applicationVersion:      ${cmd.applicationVersion}"
    log.debug "applicationSubVersion:   ${cmd.applicationSubVersion}"
    log.debug "zWaveLibraryType:        ${cmd.zWaveLibraryType}"
    log.debug "zWaveProtocolVersion:    ${cmd.zWaveProtocolVersion}"
    log.debug "zWaveProtocolSubVersion: ${cmd.zWaveProtocolSubVersion}"

def zwaveEvent(physicalgraph.zwave.commands.sensormultilevelv5.SensorMultilevelReport cmd) {
	def map = [:]
	if (cmd.sensorType == 1) {
        // temperature
        def cmdScale = cmd.scale == 1 ? "F" : "C"
        map.value = convertTemperatureIfNeeded(cmd.scaledSensorValue, cmdScale, cmd.precision)
        map.unit = getTemperatureScale() = "temperature"
        map.displayed = true


def zwaveEvent(physicalgraph.zwave.commands.deviceresetlocallyv1.DeviceResetLocallyNotification cmd) { "${device.displayName}: received command: $cmd - device has reset itself"

def zwaveEvent(physicalgraph.zwave.commands.sensorbinaryv2.SensorBinaryReport cmd) {
	def map = [:]
	map.value = cmd.sensorValue ? "open" : "closed" = "contact"
	if (map.value == "open") {
		map.descriptionText = "${device.displayName} is open"
	else {
		map.descriptionText = "${device.displayName} is closed"

def zwaveEvent(physicalgraph.zwave.Command cmd) {
	log.debug "Catchall reached for cmd: $cmd"

def configure() {
	log.debug "Executing 'configure'"

    def cmds = []

    cmds += zwave.wakeUpV2.wakeUpIntervalSet(seconds:21600, nodeid: zwaveHubNodeId)//FGK's default wake up interval
    cmds += zwave.manufacturerSpecificV2.deviceSpecificGet()
    cmds += zwave.batteryV1.batteryGet()
    cmds += zwave.sensorMultilevelV5.sensorMultilevelGet(sensorType: 1, scale: 0)
    cmds += zwave.sensorBinaryV2.sensorBinaryGet()
	cmds += zwave.associationV2.associationSet(groupingIdentifier:1, nodeId: [zwaveHubNodeId])
    cmds += zwave.wakeUpV2.wakeUpNoMoreInformation()

    encapSequence(cmds, 500)

private secure(physicalgraph.zwave.Command cmd) {

private crc16(physicalgraph.zwave.Command cmd) {

private encapSequence(commands, delay=200) {
	delayBetween(commands.collect{ encap(it) }, delay)

private encap(physicalgraph.zwave.Command cmd) {
    def secureClasses = [0x20, 0x2B, 0x30, 0x5A, 0x70, 0x71, 0x84, 0x85, 0x8E, 0x9C]

    //todo: check if secure inclusion was successful
    //if not do not send security-encapsulated command
	if (secureClasses.find{ it == cmd.commandClassId }) {
    } else {

I wrote 2 WebCore Pistons. One to handle the temps and the other to handle lid open close events.
The pistons share 3 global variables which are false by default.
dynamic@FreezerHighTemp false
dynamic@FreezerLeftOpen false
dynamic@FreezerOpen false

Temp Piston:

The piston will send sms if the temp rises above 40F. It will only trigger if the lid has been closed for at least 10 minutes since opening will raise the temp.
It will alert as the temp goes down checking every 5 minutes until the temp dropsbelow 20F.

If the lid is opened it will clear the HighTemp Varible and start HighTemp sms again if the temps do not drop when the lid is closed.

It will also alert if the temps are between 20F to 40F for at least one day which means the freezer is low on coolant or having other problems.

The open close monitor will send sms if the freezer is left open for at least 10 minutes and continue to alert every 10 if still open.

Batteries die in freezer using Multipurpose Sensor

Nice I may give this a try with kids you never know if they will shut the freezer.

(Craig) #3

Just curious. What benefit does this get over just getting a temp sensor and a door sensor?

(Jason Walters) #4

Please clarify? Are you talking about placing a temp sensor inside the freezer that uses a battery?


Not sure they’ll be happy being drilled into, but let us know how you get on :smiley:

(Craig) #6

Yes. Seems like it would produce the same insights for a lot less work. But I’m curoius if there something different that you’d get that I wasn’t thinking about (other than two sensors to change batteries on vs. 1)

(Craig) #7

My thoughts exactly. I personally put a temperature sensor in the freezer and a door sensor. It’s only been a few weeks but seems to be working fine.

(Jason Walters) #8

Craig, from what I’ve seen through user experience is that very cold temps will diminish battery life which is why I went this route. I know they have some durable wireless tags that you can drop in the freezer but there were some the things with the integration I didn’t like. Plus, the open/close sensor was like $50 bucks and temp probe $10. What is the cost of open /close sensor + temp sensor?

(Craig) #9

the temp sensor I got was ~$25 and I got the door sensor from Lowes on sale for $10. But I see your point on battary life. I just did this a week ago (had a very serious defrost issue) so I can’t say if the batteries will last or not. I’ll report back if they drain too fast!

(Thomas Kelso) #10

They have changed to version 2 of the Fibaro sensor eliminating the external connections. The older version is very hard to find. I tried using a sensor inside of the freezer but battery life was very short. Settled upon an Iris sensor and a 3 volt AC to DC power supply. I cut a 1/2 inch wood dowel to match the CR-2 battery and used it to secure the 24 AWG wires to the sensor battery contacts. So far it is working good. Just wish I could get the temperature to show on the Favorites page vs the contact status. Total cost was less than $20.

(Tony) #11

Just recently replaced the CR2 battery in the Iris contact sensor that I’ve had placed in my freezer; previous battery lasted about a year and a half. I noticed when I mapped my Zigbee mesh that the sensor in the freezer was a child device of a Cree bulb which is located in a laundry room one floor below the freezer. I haven’t verified this but I’d wager that there is actually no metal ‘floor’ in my freezer (actually the left half of a side by side unit). Probably what I’d assumed was a metal bottom side is just a void (possibly with some bracing) covered by insulation and the plastic interior lining. That might explain why the radio signals don’t seem to be hindered by any Faraday cage effect.

(Alex) #12

Showing temp instead of contact as the main status of your device is generally an easy change in the DTH. What sensor are you using and what DTH?