Split Values from a Sensor

General
1

how can I split this string into the individual values? it's the payload from an zigbee sensor.

it is certainly simple, but I do not know how it works.

{"battery":100,"voltage":3055,"temperature":23.87,"humidity":80.1,"pressure":1005,"linkquality":28}

2

Try the JSON node.

3

Do you have an example for me? Need only 1 value. Would be nice of you.

4

Simply feed the string into a JSON node connected to a debug mode and inspect the values in the debug window, see here for details:

https://nodered.org/docs/user-guide/messages

5

Consider something like this basic example

[{"id":"86a39630.57c608","type":"inject","z":"9fc25b49.983ae8","name":"","topic":"","payload":"{\"battery\":100,\"voltage\":3055,\"temperature\":23.87,\"humidity\":80.1,\"pressure\":1005,\"linkquality\":28}","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":150,"y":120,"wires":[["dd65e934.7f3628","ce878750.65dee8"]]},{"id":"dd65e934.7f3628","type":"json","z":"9fc25b49.983ae8","name":"","property":"payload","action":"","pretty":false,"x":340,"y":200,"wires":[["f0b5c3c6.be93","d2f451e2.bff08"]]},{"id":"ce878750.65dee8","type":"debug","z":"9fc25b49.983ae8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":580,"y":80,"wires":[]},{"id":"f0b5c3c6.be93","type":"debug","z":"9fc25b49.983ae8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":580,"y":140,"wires":[]},{"id":"d2f451e2.bff08","type":"debug","z":"9fc25b49.983ae8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload.temperature","targetType":"msg","x":620,"y":260,"wires":[]}]

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202560×1616 346 KB

6

I have put your string into an inject node to show you how it works:

[{"id":"9de47bfd.144d38","type":"inject","z":"cc5224d5.de3ef8","name":"","topic":"","payload":"{\"battery\":100,\"voltage\":3055,\"temperature\":23.87,\"humidity\":80.1,\"pressure\":1005,\"linkquality\":28}","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":110,"y":140,"wires":[["8f50f883.b5a878"]]},{"id":"8f50f883.b5a878","type":"json","z":"cc5224d5.de3ef8","name":"","property":"payload","action":"obj","pretty":false,"x":330,"y":140,"wires":[["ea18a9c9.1c6148"]]},{"id":"ea18a9c9.1c6148","type":"debug","z":"cc5224d5.de3ef8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":550,"y":140,"wires":[]}]
7

thanks to you two. it works perfectly. Now I can continue.