Domoticz

I like to retrieve a specific device property. Can somebody tell me how to do that?

You get all device properties if you use the following statements in dzevents:
Result in the logfile is:

{["updateBarometer"]=function, ["disarm"]=function, ["setDiscoMode"]=function, ["inActive"]=true, ["fullDump"]=function, ["setColorBrightness"]=function, ["updateHistory"]=function, ["updateCounter"]=function, ["maxDimLevel"]=100, ["bState"]=false, ["sValue"]="Closed", ["nValue"]=0, ["updateVisibility"]=function, ["usedByCamera"]=false, ["active"]=false, ["increaseBrightness"]=function, ["hardwareId"]=10, ["hardwareType"]="Zigbee2MQTT", ["protectionOff"]=function, ["kodiPlayPlaylist"]=function, ["updateWind"]=function, ["baseType"]="device", ["play"]=function, ["setIcon"]=function, ["updateWaterflow"]=function, ["_state"]="Closed", ["dump"]=function, ["updateTemperature"]=function, ["updateDistance"]=function, ["lastUpdate"]={["rawTime"]="09:36:21", ["addMinutes"]=function, ["ruleIsOnDate"]=function, ["isToday"]=true, ["min"]=36, ["hour"]=9, ["ruleMatchesBetweenRange"]=function, ["compare"]=function, ["getISO"]=function, ["addSeconds"]=function, ["ruleMatchesTimeRange"]=function, ["minutesAgo"]=116, ["sec"]=21, ["dateToTimestamp"]=function, ["addDays"]=function, ["ruleMatchesHourSpecification"]=function, ["month"]=8, ["milliseconds"]=0, ["ruleMatchesMinuteSpecification"]=function, ["dayName"]="Sunday", ["ruleIsAtAstronomicalMoment"]=function, ["timestampToDate"]=function, ["utils"]={["centerPad"]=function, ["LOG_MODULE_EXEC_INFO"]=2, ["LOG_FORCE"]=5, ["splitLine"]=function, ["dumpSelection"]=function, ["hasLines"]=function, ["LOG_ERROR"]=1, ["toBase64"]=function, ["toXML"]=function, ["fromJSON"]=function, ["urlEncode"]=function, ["fromBase64"]=function, ["LOG_DEBUG"]=4, ["humidityStatus"]=function, ["hsbToRGB"]=function, ["dumpTable"]=function, ["osCommand"]=function, ["cameraExists"]=function, ["isXML"]=function, ["numDecimals"]=function, ["toStr"]=function, ["LOG_WARNING"]=3, ["LOG_INFO"]=3, ["variableExists"]=function, ["hardwareExists"]=function, ["groupExists"]=function, ["sceneExists"]=function, ["deviceExists"]=function, ["leadingZeros"]=function, ["osExecute"]=function, ["round"]=function, ["leftPad"]=function, ["log"]=function, ["stringToSeconds"]=function, ["containsWord"]=function, ["toJSON"]=function, ["setLogMarker"]=function, ["fileExists"]=function, ["fromLines"]=function, ["cloneTable"]=function, ["inTable"]=function, ["fuzzyLookup"]=function, ["print"]=function, ["toCelsius"]=function, ["isJSON"]=function, ["urlDecode"]=function, ["rgbToHSB"]=function, ["stringSplit"]=function, ["rightPad"]=function, ["fromXML"]=function, ["DZVERSION"]="3 1 8"}, ["rawDateTime"]="2023-08-06 09:36:21", ["daysAgo"]=0, ["day"]=6, ["dateToDate"]=function, ["raw"]="2023-08-06 09:36:21", ["ruleIsInWeek"]=function, ["ruleIsBeforeAstrologicalMoment"]=function, ["minutes"]=36, ["rawDate"]="2023-08-06", ["monthName"]="August", ["ruleIsAfterAstrologicalMoment"]=function, ["ruleMatchesTime"]=function, ["minutesnow"]=576, ["makeTime"]=function, ["minutesSinceMidnight"]=576, ["monthAbbrName"]="aug", ["addHours"]=function, ["containsWholeWord"]=function, ["ruleIsOnDay"]=function, ["ruleIsAtAstronomicalRange"]=function, ["dDate"]=1691307381, ["localeMonths"]=function, ["week"]=31, ["current"]={["month"]=8, ["isdst"]=true, ["hour"]=11, ["min"]=32, ["day"]=6, ["year"]=2023, ["sec"]=37, ["wday"]=1, ["yday"]=218}, ["msAgo"]=6976209, ["seconds"]=21, ["secondsAgo"]=6976, ["isUTC"]=false, ["time"]="09:36", ["isdst"]=true, ["secondsSinceMidnight"]=34581, ["dayAbbrOfWeek"]="sun", ["matchesRule"]=function, ["milliSeconds"]=0, ["hoursAgo"]=1, ["millisecondsAgo"]=6976209, ["year"]=2023, ["wday"]=1, ["toUTC"]=function, ["yday"]=218}, ["changed"]=false, ["Image"]="Alarm", ["switchOff"]=function, ["kodiExecuteAddOn"]=function, ["rename"]=function, ["customImage"]=13, ["level"]=0, ["unit"]=1, ["updateWetness"]=function, ["setHex"]=function, ["kodiSetVolume"]=function, ["updateHumidity"]=function, ["setLevel"]=function, ["setWhiteMode"]=function, ["idx"]=6286, ["kodiStop"]=function, ["updateAirQuality"]=function, ["description"]="", ["updateTempBaro"]=function, ["setKelvin"]=function, ["updateText"]=function, ["armHome"]=function, ["_nValue"]=0, ["updateTempHumBaro"]=function, ["setDescription"]=function, ["updatePercentage"]=function, ["switchTypeValue"]=2, ["volumeDown"]=function, ["update"]=function, ["updateUV"]=function, ["state"]="Closed", ["setNightMode"]=function, ["deviceId"]="0xec1bbdfffeac6abd", ["updateSoundLevel"]=function, ["updateP1"]=function, ["setMode"]=function, ["startPlaylist"]=function, ["isVariable"]=false, ["hardwareName"]="Zigbee", ["switchOn"]=function, ["toggleSwitch"]=function, ["stop"]=function, ["cancelQueuedCommands"]=function, ["hardwareID"]=10, ["kodiPlay"]=function, ["deviceSubType"]="Switch", ["lastLevel"]=0, ["protected"]=false, ["switchType"]="Contact", ["updateTempHum"]=function, ["armAway"]=function, ["name"]="Keukenla", ["isGroup"]=false, ["playFavorites"]=function, ["switchSelector"]=function, ["setHue"]=function, ["kodiPause"]=function, ["dumpSelection"]=function, ["levelVal"]=0, ["isScene"]=false, ["icon"]="contact", ["pause"]=function, ["dimTo"]=function, ["open"]=function, ["updateGas"]=function, ["updateLux"]=function, ["updateYouless"]=function, ["updateCustomSensor"]=function, ["isHTTPResponse"]=false, ["updateElectricity"]=function, ["quietOff"]=function, ["reset"]=function, ["deviceType"]="Light/Switch", ["setVolume"]=function, ["kodiSwitchOff"]=function, ["quietOn"]=function, ["setValues"]=function, ["close"]=function, ["kodiPlayFavorites"]=function, ["id"]=6286, ["protectionOn"]=function, ["batteryLevel"]=100, ["updateVoltage"]=function, ["updateQuiet"]=function, ["updateMode"]=function, ["_adapters"]={"Switch device adapter"}, ["isTimer"]=false, ["rawData"]={"0"}, ["decreaseBrightness"]=function, ["updateRain"]=function, ["updateSoilMoisture"]=function, ["activate"]=function, ["isSecurity"]=false, ["onkyoEISCPCommand"]=function, ["isHardware"]=false, ["getColor"]=function, ["updateAlertSensor"]=function, ["hardwareTypeValue"]=94, ["updateWeight"]=function, ["isDevice
2023-08-06 11:32:37 327 Status: dzVents: Info: mySolar: "]=true, ["incrementCounter"]=function, ["volumeUp"]=function, ["signalLevel"]=4, ["_data"]={["iconNumber"]=0, ["switchTypeValue"]=2, ["data"]={["hardwareID"]=10, ["customImage"]=13, ["protected"]=false, ["unit"]=1, ["hardwareName"]="Zigbee", ["hardwareType"]="Zigbee2MQTT", ["maxDimLevel"]=100, ["_state"]="Closed", ["levelVal"]=0, ["usedByCamera"]=false, ["icon"]="contact", ["_nValue"]=0, ["hardwareTypeValue"]=94, ["Image"]="Alarm"}, ["changed"]=false, ["image"]="", ["subType"]="Switch", ["lastLevel"]=0, ["description"]="", ["protected"]=false, ["switchType"]="Contact", ["signalLevel"]=4, ["batteryLevel"]=100, ["deviceType"]="Light/Switch", ["deviceID"]="0xec1bbdfffeac6abd", ["lastUpdate"]="2023-08-06 09:36:21", ["id"]=6286, ["rawData"]={"0"}, ["name"]="Keukenla", ["timedOut"]=true, ["baseType"]="device"}, ["setRGB"]=function, ["updateRadiation"]=function, ["setHotWater"]=function, ["setColor"]=function, ["updatePressure"]=function, ["updateSetPoint"]=function, ["timedOut"]=true, ["setState"]=function}

I like to retrieve a single property for example: "minutesAgo". (Value: 116).

Can somebody tell me how to do this?????

Go to the dzvents documentation and decide what property you want: https://www.domoticz.com/wiki/DzVents:_ ... ll_devices
Also for specific devices specific functions are created (scroll down in the wiki page). These are functions to read and to set properties (starting with Set or update)

For example if you want to read the batteryLevel of a device use If you want to update a barometer with new values use:

That's exactly where I was looking for.
Thanks a lot