Add warning about sensor membrane tampering

[manuel-rw]

Added a warning about the sensor's white membrane

Description:

According to the specification of the sensor, the white label must not be removed. See https://community.home-assistant.io/t/scd41-question-white-tape-on-sensor/730240 . I had removed it because it was partially pealed off resulting in 0ppm all the time.

Checklist:

• I am merging into next because this is new documentation that has a matching pull-request in esphome as linked above.
  or

• I am merging into current because this is a fix, change and/or adjustment in the current documentation and is not for a new component or feature.

• Link added in /components/index.rst when creating new documents for new components or cookbook.

New Component Images

If you are adding a new component to ESPHome, you can automatically generate a standardized black and white component name image for the documentation.

To generate a component image:

1. Comment on this pull request with the following command, replacing COMPONENT_NAME with your component name in UPPER_CASE format with underscores (e.g., BME280, SHT3X, DALLAS_TEMP):

   @esphomebot generate image COMPONENT_NAME
   

2. The ESPHome bot will respond with a downloadable ZIP file containing the SVG image.

3. Extract the SVG file and place it in the images/ folder of this repository.

4. Use the image in your component's index table entry in /components/index.rst.

Example: For a component called "DHT22 Temperature Sensor", use:

@esphomebot generate image DHT22

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[coderabbitai]

Walkthrough

Documentation update to the SCD4x sensor guide that adds warning blocks advising against removing or tampering with the sensor's white membrane. Warnings are placed after the example configuration and after the configuration variables section. No functional or behavioral changes to the codebase.

Changes

Cohort / File(s)	Summary
Documentation updates content/components/sensor/scd4x.md	Added two warning blocks advising against removing or tampering with the sensor's white membrane to ensure proper operation

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title Check	✅ Passed	The title "Add warning about sensor membrane tampering" directly and accurately describes the main change in the pull request. The changeset adds warning blocks to the SCD4x sensor documentation advising users not to remove or tamper with the white membrane. The title is concise, specific, and clearly communicates the primary purpose of the change without ambiguity or unnecessary detail.
Description Check	✅ Passed	The pull request description is directly related to the changeset. It explains that a warning was added about the sensor's white membrane, references the sensor specification requirement not to remove the label, includes a relevant community discussion link, and provides personal context about why this warning matters. The description is meaningful and clearly relates to the documentation changes being made.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 87f9442 and 36f93b5.

📒 Files selected for processing (1)

• content/components/sensor/scd4x.md (1 hunks)

🧰 Additional context used

📓 Path-based instructions (1)

**

⚙️ CodeRabbit configuration file

• Do not generate or add any sequence diagrams

Files:

• content/components/sensor/scd4x.md

🔇 Additional comments (2)

content/components/sensor/scd4x.md (2)

28-29: Discrepancy with AI summary: only one warning block visible.

The AI summary states warnings are "placed after the example configuration and after the configuration variables section," suggesting two locations. However, the provided code shows only one warning block at lines 28–29. Please clarify whether a second warning block should also appear after the configuration variables section (around line 80).

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28-29: Warning content and placement look good.

The warning message is clear, appropriately uses GitHub's Markdown alert syntax, and is well-positioned after the example configuration for early user visibility. The link to the community discussion provides helpful context. This change effectively communicates the important constraint without disrupting the documentation flow.

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