Shelly relay status

General
1

Hello,

I´m using more shellies first gen in NodeRed with MQTT.
Asking if online, show state of relay and turn on and off relay. That works great.

I bought a new Shelly, but its name is Shellyplus and the commands are different to old ones and I couldn´t read the Relay status

In MQTT Explorer I found the status for the Relay in a string line. See here in the right area with name "output": true and false (Relay active and inactive)

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In NodeRed it show so with Relay active and incative:

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image987×290 24.4 KB

How I can use the output: false or true?
Thanks in front for your good support for a beginner.

Here the 2 relevant Nodes:

[
    {
        "id": "11d33bc2981ea199",
        "type": "mqtt in",
        "z": "04e8334d68490e82",
        "g": "f648527053dcebe4",
        "name": "",
        "topic": "shellyplus-EG-Flur-Fbh/status/switch:0",
        "qos": "0",
        "datatype": "auto-detect",
        "broker": "33ed6bdd892c405a",
        "nl": false,
        "rap": true,
        "rh": 0,
        "inputs": 0,
        "x": 190,
        "y": 1800,
        "wires": [
            [
                "d48b2387b3a5326a",
                "d63097921d6f1d99"
            ]
        ]
    },
    {
        "id": "d48b2387b3a5326a",
        "type": "debug",
        "z": "04e8334d68490e82",
        "g": "f648527053dcebe4",
        "name": "Relay on / off ShellyPlus",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": true,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "payload",
        "statusType": "auto",
        "x": 510,
        "y": 1800,
        "wires": []
    },
    {
        "id": "33ed6bdd892c405a",
        "type": "mqtt-broker",
        "name": "MQTT von PV Holzkeller",
        "broker": "192.168.2.5",
        "port": "1883",
        "clientid": "",
        "autoConnect": true,
        "usetls": false,
        "protocolVersion": "4",
        "keepalive": "60",
        "cleansession": true,
        "autoUnsubscribe": true,
        "birthTopic": "",
        "birthQos": "0",
        "birthPayload": "",
        "birthMsg": {},
        "closeTopic": "",
        "closeQos": "0",
        "closePayload": "",
        "closeMsg": {},
        "willTopic": "",
        "willQos": "0",
        "willPayload": "",
        "willMsg": {},
        "userProps": "",
        "sessionExpiry": ""
    }
]
2

Just use in a switch node. Get the path using the copy path button and then have the switch node compare it to boolean true.

There’s a great page in the docs (Working with messages : Node-RED) that will explain how to use the debug panel to find the right path/value for any data item.

Pay particular attention to the part about the buttons that appear under your mouse pointer when you over hover a debug message property in the sidebar.

BX00Cy7yHi

3

For all beginners, I strongly recommend watching this playlist: Node-RED Essentials. The videos are done by the developers of node-red. They're nice & short and to the point. You will understand a whole lot more in about 1 hour. A small investment for a lot of gain.

2 Likes
4

Thank you very much. The videos are great and very helpful. All the best for you.

5

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