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Bedroom CO2 Kept Under 1,000 ppm All Night: Grok Bot Built the Home Assistant Automation From Just the Goal

  • Level Intermediate
  • Setup1–3 hrs (estimated)
  • Evidence Anecdotal
  • CostNot stated in source
  • No-codeYes
Grok BotSource-linked

What they did

Can I get better air while I sleep without writing code? He described only the outcome he wanted, and a Grok Bot built a Home Assistant automation that kept his bedroom CO2 under 1,000 ppm all night. He never wrote a step himself. His other bots handle his insurance and phone bills.

How it went

An automation that keeps your bedroom air fresh overnight, with a morning summary.

Worth knowing

  • Short post. You need a CO2 sensor and something the automation can switch on, like a smart plug fan or ventilation. Check the automation before turning it on.

Prompt

Cleaned version rewritten from the source — not a direct quote.

In my Home Assistant at [address], I have a CO2 sensor [name] in the bedroom and a [fan / air exchanger / smart window opener] [name]. Build an automation that keeps bedroom CO2 under 1,000 ppm overnight from [time] to [time]: turn on ventilation above [900] ppm and off below [700], quiet mode at night. Show me the automation before you save it, and send me a morning summary of the night's readings.

Recommended

Try it in Grok Bot

  1. Copy the prompt (button below).
  2. Open Grok Bot chat and paste it. Replace any [bracketed] placeholders.
  3. Connect the listed tools (as needed) as connectors when Grok Bot asks.
  4. If the task repeats, ask: "Make this a daily routine."

Alternatives: the same prompt works in Claude, ChatGPT Agent, OpenClaw.

Set it up

Stack: Grok Bot + Home Assistant + CO2 sensor + fan or ventilation

  1. Read the original source for full context.
  2. Connect the tools your agent needs.
  3. Paste the prompt and replace [bracketed] placeholders.
  4. Run once manually and check the output before scheduling it.

Generic suggested steps, not from the source.

Evidence

Short first-hand X reply: Home Assistant automation kept bedroom CO2 under 1,000 ppm all night, built from an outcome description

Source: X · 2026-10-20 · Verified by us: not yet · Report broken or outdated

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