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  • Tasmota Plug – Control with Node-Red and MQTT

    18. Mai 2025By

    Here you will find some Projects to control Tasmota Plugs with the help of Node-Red and MQTT. Requirements are an RaspberryPi ore a Server on which Mosquitto, Node-Red with Dashboard is installed. The Tasmota Plugs should be configured to work in your MQTT Environment, so you have to use Topics, that will fit your naming themes.

    Tasmota is an open source firmware for Espressif ESP8266, ESP32, ESP32-S or ESP32-C3 chipset based devices created and maintained by Theo Arends.

    Tasmota Logo

    You can flash Tasmota Plugs with the Tasmota Firmware: https://tasmota.github.io/docs/

    Here you can see the Blog Posts that i´ve already published

  • Keep your basement dry – WITHOUT electricity costs

    18. Mai 2025By

    If you have the problem that a room in your basement is damp, this project might help you.

    Keep your basement dry – WITHOUT electricity costs with an “Digital 2-in-1 Dehumidifier” (Sichler electric dehumidifier, dehumidifier & air purifier model: LFT-200 or any other dehumidifier of your choice thas can be switched on / off via the powercord)
    => Control the dehumidifier trough a Tasmota socket and Node-Red, Mosquitto via MQTT on a Raspberry Pi. Switching times are based on adjustable thresholds for battery charge.

    Requirements:

    • Raspberrypi with Node-Red with Dashboard and Mosquitto MQTT Broker installed
    • PV system with batteries: home power station E3/DC
    • RSCP2MQTT installed on the Raspi [(https://github.com/pvtom/rscp2mqtt)] to get Values from the Station
    • Tasmota socket with MQTT switched on and configured for the Mosquitto Broker
    • “Digital 2-in-1 Dehumidifier” or any other Dehumidifier which can be controlled with the Tasmota plug

    The Dehumidifier i´m using:

    Picture of the Dehumidifier

    Picture of the Dehumidifier

    Shop where you can buy the Dehumidifier

    Installation

    Verify that the above Requirements are met.
    Import the flow into Node-RED.
    Make corrections in the Nodes for your System:
    Activate and test the flow.

    Usage

    The flow runs automatically in the background and monitors the incoming values form the PV System.
    If the adjusted Value are reached, the Dehumidifier will start working and drying the Air. If the values are not met it will stop.

    Pictures of the Node-Red Dashboard:

     

    Node-Red Dashboard Control Elements

    Node-Red Dashboard Control Elements

     

    Node-Red Dashboard Zustand

    Node-Red Dashboard Zustand

    License

    This project is licensed under the MIT License.

    Contact

    The Flow of the Project (Downlod here):

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            "stroke": "#999999",
            "stroke-opacity": "1",
            "fill": "none",
            "fill-opacity": "1",
            "label": true,
            "label-position": "nw",
            "color": "#a4a4a4"
        },
        "nodes": [
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        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
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        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "Plug-UG-01",
        "topic": "Haus/Keller/Tasmota/Plug-UG-01/cmnd/POWER",
        "qos": "2",
        "retain": "",
        "respTopic": "",
        "contentType": "",
        "userProps": "",
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        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "0",
        "payloadType": "num",
        "x": 150,
        "y": 1000,
        "wires": [
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    },
    {
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        "type": "ui_led",
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        "order": 2,
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        "width": 3,
        "height": 2,
        "label": "",
        "labelPlacement": "left",
        "labelAlignment": "left",
        "colorForValue": [
            {
                "color": "#ff0000",
                "value": "AUS",
                "valueType": "str"
            },
            {
                "color": "#00f900",
                "value": "AN",
                "valueType": "str"
            }
        ],
        "allowColorForValueInMessage": false,
        "shape": "circle",
        "showGlow": true,
        "name": "Steckdose UG 01 an / aus",
        "x": 880,
        "y": 1020,
        "wires": []
    },
    {
        "id": "9e81875bb6f772ae",
        "type": "ui_toast",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "position": "bottom left",
        "displayTime": "3",
        "highlight": "yellow",
        "sendall": true,
        "outputs": 0,
        "ok": "OK",
        "cancel": "",
        "raw": true,
        "className": "",
        "topic": "Steckdose UG 01 AN / AUS",
        "name": "Steckdose UG 01 wurde geschaltet",
        "x": 900,
        "y": 980,
        "wires": []
    },
    {
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        "type": "mqtt in",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "Plug UG 01 SENSOR",
        "topic": "Haus/Keller/Tasmota/Plug-UG-01/SENSOR",
        "qos": "2",
        "datatype": "auto-detect",
        "broker": "88539582a8a310de",
        "nl": false,
        "rap": true,
        "rh": 0,
        "inputs": 0,
        "x": 180,
        "y": 1100,
        "wires": [
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        "type": "debug",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "Spannung",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
        "x": 910,
        "y": 1080,
        "wires": []
    },
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        "type": "comment",
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        "name": "Tasmota Steckdose UG-01 steuern / auswerten - Keller Luftentfeuchter",
        "info": "",
        "x": 330,
        "y": 920,
        "wires": []
    },
    {
        "id": "0561233652a0c2ec",
        "type": "change",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "ENERGY.Voltage",
        "rules": [
            {
                "t": "move",
                "p": "payload.ENERGY.Voltage",
                "pt": "msg",
                "to": "payload",
                "tot": "msg"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
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        "y": 1100,
        "wires": [
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        "type": "change",
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        "g": "fad7798580148e6d",
        "name": "ENERGY.Total",
        "rules": [
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                "t": "move",
                "p": "payload.ENERGY.Total",
                "pt": "msg",
                "to": "payload",
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            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
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        "y": 1140,
        "wires": [
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    },
    {
        "id": "259161055f18a4fe",
        "type": "debug",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "SENSOR",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
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        "wires": []
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        "type": "change",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "ENERGY.ApparentPower",
        "rules": [
            {
                "t": "move",
                "p": "payload.ENERGY.ApparentPower",
                "pt": "msg",
                "to": "payload",
                "tot": "msg"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 450,
        "y": 1180,
        "wires": [
            [
                "a8e2f5579f63a2dc",
                "ea0f64baaf4ee614",
                "74ae3c73dbd474cf"
            ]
        ]
    },
    {
        "id": "a8e2f5579f63a2dc",
        "type": "debug",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "Watt VA",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
        "x": 900,
        "y": 1160,
        "wires": []
    },
    {
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        "type": "debug",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "Gesamt Verbrauch",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
        "x": 930,
        "y": 1120,
        "wires": []
    },
    {
        "id": "ea0f64baaf4ee614",
        "type": "ui_gauge",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "Aktueller Verbrauch Watt",
        "group": "7481342d26c171a1",
        "order": 3,
        "width": 4,
        "height": 4,
        "gtype": "gage",
        "title": "Aktueller Verbrauch Watt",
        "label": "Watt",
        "format": "{{value}} Watt",
        "min": 0,
        "max": "150",
        "colors": [
            "#00b500",
            "#e6e600",
            "#ca3838"
        ],
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        "seg2": "",
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        "name": "",
        "group": "7481342d26c171a1",
        "order": 6,
        "width": 1,
        "height": 2,
        "passthru": false,
        "label": "AUS",
        "tooltip": "",
        "color": "",
        "bgcolor": "",
        "className": "",
        "icon": "radio_button_unchecked",
        "payload": "0",
        "payloadType": "num",
        "topic": "topic",
        "topicType": "msg",
        "x": 270,
        "y": 1000,
        "wires": [
            [
                "ce37ef6376ea9cbd",
                "60412301b4b86494"
            ]
        ]
    },
    {
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        "type": "ui_button",
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        "name": "",
        "group": "7481342d26c171a1",
        "order": 1,
        "width": 1,
        "height": 2,
        "passthru": false,
        "label": "AN",
        "tooltip": "",
        "color": "",
        "bgcolor": "",
        "className": "",
        "icon": "radio_button_checked",
        "payload": "1",
        "payloadType": "num",
        "topic": "topic",
        "topicType": "msg",
        "x": 270,
        "y": 960,
        "wires": [
            [
                "ce37ef6376ea9cbd",
                "60412301b4b86494"
            ]
        ]
    },
    {
        "id": "6dc5cfa56fcfb6ce",
        "type": "ui_chart",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "Gesamt Verbrauch kWh",
        "group": "7481342d26c171a1",
        "order": 5,
        "width": 4,
        "height": 2,
        "label": "",
        "chartType": "line",
        "legend": "false",
        "xformat": "dd HH:mm",
        "interpolate": "linear",
        "nodata": "",
        "dot": false,
        "ymin": "",
        "ymax": "",
        "removeOlder": "1",
        "removeOlderPoints": "",
        "removeOlderUnit": "604800",
        "cutout": 0,
        "useOneColor": false,
        "useUTC": false,
        "colors": [
            "#1f77b4",
            "#aec7e8",
            "#ff7f0e",
            "#2ca02c",
            "#98df8a",
            "#d62728",
            "#ff9896",
            "#9467bd",
            "#c5b0d5"
        ],
        "outputs": 1,
        "useDifferentColor": false,
        "className": "",
        "x": 690,
        "y": 1140,
        "wires": [
            []
        ]
    },
    {
        "id": "2676a2ac0cc7cdb2",
        "type": "ui_text",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "group": "7481342d26c171a1",
        "order": 7,
        "width": 3,
        "height": 2,
        "name": "Spannung",
        "label": "",
        "format": "{{msg.payload}} Volt",
        "layout": "col-center",
        "className": "",
        "style": false,
        "font": "",
        "fontSize": 16,
        "color": "#000000",
        "x": 650,
        "y": 1100,
        "wires": []
    },
    {
        "id": "071e45791b47638e",
        "type": "change",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "ENERGY.Power",
        "rules": [
            {
                "t": "move",
                "p": "payload.ENERGY.Power",
                "pt": "msg",
                "to": "payload",
                "tot": "msg"
            }
        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
        "x": 420,
        "y": 1220,
        "wires": [
            [
                "aea6342fca8fc732",
                "4b748d6f4a591fcd"
            ]
        ]
    },
    {
        "id": "aea6342fca8fc732",
        "type": "debug",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "kWh aktuell",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
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        "ymin": "",
        "ymax": "",
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        "removeOlderPoints": "",
        "removeOlderUnit": "3600",
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        "useOneColor": false,
        "useUTC": false,
        "colors": [
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            "#2ca02c",
            "#98df8a",
            "#d62728",
            "#ff9896",
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            "#c5b0d5"
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                "pt": "msg",
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                "tot": "msg"
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        ],
        "action": "",
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        "height": 4,
        "gtype": "gage",
        "title": "Verbrauch Ampere",
        "label": "Ampere",
        "format": "{{value}}",
        "min": 0,
        "max": "16",
        "colors": [
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        "seg1": "",
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        "topic": "Haus/Keller/Tasmota/Plug-UG-01/STATE",
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        "datatype": "auto-detect",
        "broker": "88539582a8a310de",
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        "name": "Payload POWER",
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        "name": "Payload ändern",
        "rules": [
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                "t": "change",
                "p": "payload",
                "pt": "msg",
                "from": "1",
                "fromt": "num",
                "to": "AN",
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            {
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                "p": "payload",
                "pt": "msg",
                "from": "0",
                "fromt": "num",
                "to": "AUS",
                "tot": "str"
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        ],
        "action": "",
        "property": "",
        "from": "",
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        "wires": [
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                "pt": "msg",
                "from": "ON",
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            {
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                "p": "payload",
                "pt": "msg",
                "from": "OFF",
                "fromt": "str",
                "to": "AUS",
                "tot": "str"
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        ],
        "action": "",
        "property": "",
        "from": "",
        "to": "",
        "reg": false,
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        "wires": [
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    },
    {
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        "type": "link out",
        "z": "948162f7d59a232b",
        "g": "fad7798580148e6d",
        "name": "zu E3DC Akku Steuerung",
        "mode": "link",
        "links": [
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        "x": 925,
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        "wires": []
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    {
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        "type": "comment",
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        "g": "fad7798580148e6d",
        "name": "zur Steckdosen Akkusteuerung =>",
        "info": "",
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        "g": "fad7798580148e6d",
        "name": "zu E3DC Watt Anzeige",
        "mode": "link",
        "links": [
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            "stroke-opacity": "1",
            "fill": "none",
            "fill-opacity": "1",
            "label": true,
            "label-position": "nw",
            "color": "#a4a4a4"
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        "nodes": [
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        "tostatus": true,
        "complete": "payload",
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        "gtype": "gage",
        "title": "E3DC Akku Ladezustand in %",
        "label": "%",
        "format": "{{value | number:0}}",
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        "labelPlacement": "left",
        "labelAlignment": "center",
        "colorForValue": [
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                "valueType": "str"
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            {
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                "value": "AN",
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        ],
        "allowColorForValueInMessage": true,
        "shape": "circle",
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        "name": "von Plug-UG-01 =>",
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        "wires": []
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        "g": "eebde64123f8c40b",
        "name": "Aktueller Verbrauch Watt",
        "group": "070122725e128cea",
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        "width": 4,
        "height": 3,
        "gtype": "gage",
        "title": "Luftentfeuchter Verbrauch",
        "label": "Watt",
        "format": "{{value | number:0}}",
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        "colors": [
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        "seg1": "",
        "seg2": "",
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        "wires": []
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    {
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        "type": "link in",
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        "g": "eebde64123f8c40b",
        "name": "von Plug-EG-01 Watt",
        "links": [
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        "wires": [
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    },
    {
        "id": "52c954b17e7bf4d4",
        "type": "ui_text",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "group": "070122725e128cea",
        "order": 6,
        "width": 4,
        "height": 2,
        "name": "",
        "label": "Abschaltung unter",
        "format": "{{msg.payload}} %",
        "layout": "col-center",
        "className": "",
        "style": true,
        "font": "Arial Black,Arial Black,Gadget,sans-serif",
        "fontSize": "18",
        "color": "#ff9200",
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        "wires": []
    },
    {
        "id": "d6f5a61f7a31d4a3",
        "type": "ui_slider",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Schwellwert einstellen",
        "label": "Schwellwert %",
        "tooltip": "",
        "group": "070122725e128cea",
        "order": 7,
        "width": 8,
        "height": 2,
        "passthru": true,
        "outs": "end",
        "topic": "threshold",
        "topicType": "str",
        "min": "20",
        "max": 100,
        "step": 1,
        "className": "",
        "x": 400,
        "y": 1520,
        "wires": [
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    },
    {
        "id": "bd65f8e29c68a970",
        "type": "function",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Akku% Vergleich Schwellwert",
        "func": "// Save the latest threshold value in context\nif (msg.topic === \"threshold\") {\n    context.set(\"threshold\", msg.payload);\n    return null; // Don't forward this message\n}\n\n// Get the latest threshold value\nlet threshold = context.get(\"threshold\") || 0;\n\n// Get the battery SOC value\nlet battery_soc = msg.payload;\n\n// Compare the battery SOC with the threshold\nif (battery_soc >= threshold) {\n    // Send command to turn on the plug\n    return { topic: \"Haus/Erdgeschoss/Tasmota/Plug-UG-01/cmnd/POWER\", payload: 1 };\n} else {\n    // Send command to turn off the plug\n    return { topic: \"Haus/Erdgeschoss/Tasmota/Plug-UG-01/cmnd/POWER\", payload: 0 };\n}",
        "outputs": 1,
        "timeout": "",
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
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        "wires": [
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    },
    {
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        "type": "debug",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "0 / 1 von Function",
        "active": false,
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        "console": false,
        "tostatus": true,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "payload",
        "statusType": "auto",
        "x": 910,
        "y": 1460,
        "wires": []
    },
    {
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        "type": "mqtt out",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Plug-UG-01",
        "topic": "Haus/Keller/Tasmota/Plug-UG-01/cmnd/POWER",
        "qos": "2",
        "retain": "true",
        "respTopic": "",
        "contentType": "",
        "userProps": "",
        "correl": "",
        "expiry": "",
        "broker": "88539582a8a310de",
        "x": 750,
        "y": 1420,
        "wires": []
    },
    {
        "id": "9aa1fced9b155c67",
        "type": "mqtt in",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "",
        "topic": "Haus/Keller/e3dc/battery/soc",
        "qos": "2",
        "datatype": "auto-detect",
        "broker": "88539582a8a310de",
        "nl": false,
        "rap": true,
        "rh": 0,
        "inputs": 0,
        "x": 200,
        "y": 1460,
        "wires": [
            [
                "bd65f8e29c68a970",
                "f1b63107694e70e9",
                "08ef54e5d364a46c",
                "d975a2dab0f4a195"
            ]
        ]
    },
    {
        "id": "47b4a712d2b074c1",
        "type": "debug",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Schwelle",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
        "x": 410,
        "y": 1560,
        "wires": []
    },
    {
        "id": "d975a2dab0f4a195",
        "type": "debug",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Akku gesamte Meldung",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 470,
        "y": 1380,
        "wires": []
    },
    {
        "id": "f3a3149131c8f5e3",
        "type": "mqtt in",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "",
        "topic": "Haus/Keller/e3dc/battery/power",
        "qos": "2",
        "datatype": "auto-detect",
        "broker": "88539582a8a310de",
        "nl": false,
        "rap": true,
        "rh": 0,
        "inputs": 0,
        "x": 210,
        "y": 1600,
        "wires": [
            [
                "d72f7580840dd0d6"
            ]
        ]
    },
    {
        "id": "9503b2b6e53876bb",
        "type": "ui_gauge",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Batterie Be- Entladung in Watt",
        "group": "070122725e128cea",
        "order": 2,
        "width": 4,
        "height": 3,
        "gtype": "gage",
        "title": "Batterie Be- Entladung in Watt",
        "label": "Watt",
        "format": "{{value | number:0}}",
        "min": "-500",
        "max": "1000",
        "colors": [
            "#ff2600",
            "#e6e600",
            "#60c453"
        ],
        "seg1": "0",
        "seg2": "400",
        "diff": false,
        "className": "",
        "x": 930,
        "y": 1600,
        "wires": []
    },
    {
        "id": "0e12e310fd98d98d",
        "type": "mqtt in",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "",
        "topic": "Haus/Keller/e3dc/home/power",
        "qos": "2",
        "datatype": "auto-detect",
        "broker": "88539582a8a310de",
        "nl": false,
        "rap": true,
        "rh": 0,
        "inputs": 0,
        "x": 210,
        "y": 1640,
        "wires": [
            [
                "6298d0e1b20bb323"
            ]
        ]
    },
    {
        "id": "13da3af768167c9e",
        "type": "ui_gauge",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Hausverbrauch aktuell in Watt",
        "group": "070122725e128cea",
        "order": 3,
        "width": 4,
        "height": 3,
        "gtype": "gage",
        "title": "Hausverbrauch aktuell in Watt",
        "label": "Watt",
        "format": "{{value | number:0}}",
        "min": "-0",
        "max": "1000",
        "colors": [
            "#00b500",
            "#e6e600",
            "#ca3838"
        ],
        "seg1": "",
        "seg2": "",
        "diff": false,
        "className": "",
        "x": 930,
        "y": 1640,
        "wires": []
    },
    {
        "id": "d72f7580840dd0d6",
        "type": "function",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Dynamische Werte für Gauge",
        "func": "const value = msg.payload;\n\n// Rundung auf ganze Zahlen\nconst roundedValue = Math.round(value);\n\nconst absValue = Math.abs(roundedValue);\n\n// Berechnung des maxWert, 120% vom absoluten Wert, immer im positiven Bereich\nlet maxWert = Math.round(absValue * 1.2 + 200);\n\n// Berechnung des minWert, abhängig davon, ob value positiv oder negativ ist\nlet minWert = roundedValue < 0 ? Math.round(-absValue * 1.5) : Math.round(-absValue * 0.5);\n\nlet minSeg = Math.round(absValue * 0.4);  // 40% vom absoluten Wert\nlet maxSeg = Math.round(absValue * 0.8);  // 80% vom absoluten Wert\n\n// Debug-Ausgabe zur Überprüfung\nnode.warn(\"Akku Ladung - Max Wert: \" + maxWert + \", Min Wert: \" + minWert + \", Min Seg: \" + minSeg + \", Max Seg: \" + maxSeg);\n\nmsg = {\n    ui_control: {\n        gtype: \"gage\",\n        min: minWert,\n        max: maxWert,\n        colors: [\"red\", \"orange\", \"green\"],\n        seg1: minSeg,\n        seg2: maxSeg\n    },\n    // Sende die gerundeten Werte an das ui_gauge\n    payload: roundedValue\n};\n\nreturn msg;\n",
        "outputs": 1,
        "timeout": "",
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 540,
        "y": 1600,
        "wires": [
            [
                "9503b2b6e53876bb"
            ]
        ]
    },
    {
        "id": "6298d0e1b20bb323",
        "type": "function",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Dynamische Werte für Gauge",
        "func": "const value = msg.payload;\n\n// Rundung auf ganze Zahlen\nconst roundedValue = Math.round(value);\n\nconst absValue = Math.abs(roundedValue);\n\n// Berechnung des maxWert, 120% vom absoluten Wert, immer im positiven Bereich\nlet maxWert = Math.round(absValue * 1.2 + 200);\n\n// Berechnung des minWert, abhängig davon, ob value positiv oder negativ ist\nlet minWert = roundedValue < 0 ? Math.round(-absValue * 1.5) : Math.round(-absValue * 0.5);\n\nlet minSeg = Math.round(absValue * 0.4);  // 40% vom absoluten Wert\nlet maxSeg = Math.round(absValue * 0.8);  // 80% vom absoluten Wert\n\n// Debug-Ausgabe zur Überprüfung\nnode.warn(\"Haus Verbrauch - Max Wert: \" + maxWert + \", Min Wert: \" + minWert + \", Min Seg: \" + minSeg + \", Max Seg: \" + maxSeg);\n\nmsg = {\n    ui_control: {\n        gtype: \"gage\",\n        min: minWert,\n        max: maxWert,\n        colors: [\"red\", \"orange\", \"green\"],\n        seg1: minSeg,\n        seg2: maxSeg\n    },\n    // Sende die gerundeten Werte an das ui_gauge\n    payload: roundedValue\n};\n\nreturn msg;\n",
        "outputs": 1,
        "timeout": "",
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 540,
        "y": 1640,
        "wires": [
            [
                "13da3af768167c9e"
            ]
        ]
    },
    {
        "id": "561807b087ad2d02",
        "type": "inject",
        "z": "948162f7d59a232b",
        "g": "eebde64123f8c40b",
        "name": "Schwelle Akku (Init)",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": true,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "80",
        "payloadType": "num",
        "x": 190,
        "y": 1520,
        "wires": [
            [
                "d6f5a61f7a31d4a3"
            ]
        ]
    },
    {
        "id": "070122725e128cea",
        "type": "ui_group",
        "name": "E3DC Akku % Ladung (LED = Steckdose AN / AUS)",
        "tab": "39cbe7e60fb96760",
        "order": 2,
        "disp": true,
        "width": "8",
        "collapse": false,
        "className": ""
    },
    {
        "id": "39cbe7e60fb96760",
        "type": "ui_tab",
        "name": "E3DC Steuerung - Steckdosenleiste, Luftentfeuchter",
        "icon": "check",
        "order": 14,
        "disabled": false,
        "hidden": false
    },
    {
        "id": "88539582a8a310de",
        "type": "mqtt-broker",
        "name": "Edi´s Raspi (1) Mosquitto",
        "broker": "raspberrypi",
        "port": "1883",
        "clientid": "",
        "autoConnect": true,
        "usetls": false,
        "protocolVersion": "4",
        "keepalive": "60",
        "cleansession": true,
        "autoUnsubscribe": true,
        "birthTopic": "",
        "birthQos": "0",
        "birthRetain": "false",
        "birthPayload": "",
        "birthMsg": {},
        "closeTopic": "",
        "closeQos": "0",
        "closeRetain": "false",
        "closePayload": "",
        "closeMsg": {},
        "willTopic": "",
        "willQos": "0",
        "willRetain": "false",
        "willPayload": "",
        "willMsg": {},
        "userProps": "",
        "sessionExpiry": ""
    },
    {
        "id": "7481342d26c171a1",
        "type": "ui_group",
        "name": "Steckdosen Schalter UG 01 - Keller Luftentfeuchter",
        "tab": "29ec6908.552b36",
        "order": 3,
        "disp": true,
        "width": 16,
        "collapse": false,
        "className": ""
    },
    {
        "id": "29ec6908.552b36",
        "type": "ui_tab",
        "name": "Tasmota Steckdose",
        "icon": "power",
        "order": 12,
        "disabled": false,
        "hidden": false
    }
]

  • Heim Automation – IoT mit Raspi, Node-Red, MQTT, iOBroker uvm.

    13. Oktober 2024By

    Seit dem Einzug ins eigene Heim hat sich bei dem Thema Heim Automation bei mir vieles entwickelt, liegt wohl auch daran, dass ich beruflich in der IT arbeite und es unglaublich viel Spaß macht wenn man beim Programmieren oder Elektronik basteln, löten, messen ein Ergebnis sieht, das auch etwas bewegt oder steuert und nicht nur einfach ein Programm abläuft.

    # Programm zur Raspberry Pi GPIO Steuerung mit Python 

import RPi.GPIO as GPIO
import time
import sys

# GPIO PIN Nummer
SwitchNummer = 27

GPIO.setmode(GPIO.BCM)
GPIO.setup(SwitchNummer, GPIO.IN, pull_up_down=GPIO.PUD_UP)

def read_gpio(pin):
stable_value = GPIO.input(pin)
start_time = time.time()
while time.time() - start_time < 0.05: # 50ms debounce time
if GPIO.input(pin) != stable_value:
start_time = time.time()
stable_value = GPIO.input(pin)
return stable_value

# Variable zum Verfolgen des anfaenglichen Schalterzustands
schalter_zustand = GPIO.input(SwitchNummer)

print('GPIO PIN 27 Zustand anzeigen')
schalter_zustand = GPIO.input(SwitchNummer)

if schalter_zustand == 0:
print("Schalter geöffnet")
sys.exit(0) # GPIO is HIGH
else:
print("Schalter GESCHLOSSEN")
sys.exit(1) # GPIO is LOW

# (c) ETe 2024-10

    Angefangen hat es mit dem Raspiberry Pi, den ich zur Überwachung und Steuerung meines Garagentors genutzt habe. Zu Beginn hab ich Python Scripte geschrieben, die nach eingehendem Funktionstest als Dienst auf dem Raspi laufen und ihre Aufgabe erfüllen. Da die Benachrichtigung per SMS vom Raspi aus schwierig und  vermutlich auch kostenpflichtig gewesen wäre, habe ich  andere Lösungen gesucht und auch gefunden. Pushover ist ein Dienst, der bis zu einem Aufkommen von 10000 Nachrichten / Monat kostenlos ist. In Python hab ich das für mich programmiert, es ist auch gut möglich in Node-Red oder im iOBroker. Alle anderen HA Plattformen unterstützen es bestimmt auch.

    Inzwischen habe ich so einiges an IoT Geräten im Einsatz, die unter anderem zum Steuern von Steckdosen oder dem Warmwasserspeicher zum Einsatz kommen. Mit den ermittelten Werten aus der PV Anlage mit Akku kann so der erzeugte Strom effizient genutzt werden in dem Zeiten wo überschüssige Energie vorhanden ist.

    Zum Einsatz kommt dazu unter Anderem sehr intensiv Node-Red. Grundlage vieler Algorithmen ist der MQTT-Broker Mosquito, der wie auch Node-Red auf dem Raspi laufen. iOBroker ist auch im Einsatz, für den gibt es unzählige Adapter, die so ziemlich alles steuern können. Ich habe ihn im Einsatz um mit der Visualisierung iQontrol meine Rollläden zu steuern.

    Ein Gebiet für das es jeden Tag neue Ideen und Herausforderungen gibt. Es wird nie langweilig (zumindest mir nicht). Mit jedem Projekt wächst man mehr in die verschiedenen Programme hinein und kann besser damit umgehen. Beim Programmieren bleibt auch der Geist aktiv und wach, das ist für die Gesundheit hilfreich, sofern man es nicht übertreibt und andere Dinge auf der Strecke bleiben.

    Mal sehen was ich hier so alles zusammentragen werde.

    Gruß

    Edi