MQTT configuration in yaml

Configuration
1

Can someone please help me! I would like a sensor that
receives the information contained in the red circle.

Screenshot 2024-06-09 162055
Screenshot 2024-06-09 1620553325×913 269 KB

Topic: warp3/2aZY/nfc/seen_tags

[{“tag_type”:0,“tag_id”:“”,“last_seen”:0},{“tag_type”:0,“tag_id”:“”,“last_seen”:0},{“tag_type”:0,“tag_id”:“”,“last_seen”:0},{“tag_type”:0,“tag_id”:“”,“last_seen”:0},{“tag_type”:0,“tag_id”:“”,“last_seen”:0},{“tag_type”:0,“tag_id”:“”,“last_seen”:0},{“tag_type”:0,“tag_id”:“”,“last_seen”:0},{“tag_type”:0,“tag_id”:“”,“last_seen”:0},{“tag_type”:0,“tag_id”:“”,“last_seen”:0}]

The data comes from a wallbox and is provided via MQTT. The double curved brackets are causing me problems, I have no idea how to select the right element!
Thank you

2 
mqtt:
  sensor:
    - name: "Tag Identifier"
      state_topic: "warp3/2aZY/nfc/seen_tags"
      value_template: "{{ value_json[0].tag_id }}"
      unique_id: "abc123xyz456"
3

Great! Thank you very much!

1 Like
4

You’re welcome!

Please consider marking my post above with the Solution tag. It will automatically place a check-mark next to the topic’s title which signals to other users that this topic has been resolved. This helps users find answers to similar questions.

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5

Screenshots of code are generally frowned on, and often difficult to read. See How to help us help you - or How to ask a good question

If you copy it as text and post it in quote tags, then someone else can easily test possible solutions.

6

Ok. next time.

7

Why not edit your OP now? People asking the same question in the future would benefit.

2 Likes