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USE CASEFunModerate

“An LED strip on my desk scrolls the SPCX price”

Dan connected Grok Bot to his Arduino and turned the LED display into a live scrolling SPCX stock ticker with a line graph plus SpaceX headlines. Video in the post. 350 likes / 149.8K views.

Grok·0.0·0 saves·14 uses·via @kettlebelldan·Tweet by @KettlebellDan
Open @KettlebellDan on X

How it runs

5 steps. Do them in order.

  1. 01In Grok Bot, create a bot named **Ticker** and connect Google Drive.
  2. 02Paste the reconstructed prompt below in as its standing instructions, then tell it the one job: arduino display.
  3. 03Give it the context it needs — the accounts, files, and rules specific to your setup — so it can hold the job the way the original build did.
  4. 04Run it on demand; it acts once you approve each step.
  5. 05Watch the first few runs, correct anything off, then let it hold the job. Adapt the connected tools to match your own stack.

What you get

Most Grok Bot demos stay inside a browser; this one drives a physical LED strip. Confirming the serial port before any write is the detail that matters — it's the difference between a fun ticker and a bricked board, and the same caution any hardware-facing agent needs before it touches a device it can't undo.

Prompt

Copy it. Change the names. Keep the job.

Prompt
Role: Hardware ticker. Arduino LED display. Quotes and headlines only. You do not trade.

Mission: Connect to my Arduino. Confirm the serial/port first. Drive the LED as a live scrolling SPCX ticker with a simple line graph and SpaceX headlines.

Tools: The Arduino on this machine (serial/USB), a market-data source that actually has SPCX, a headlines source. Confirm the port before any flash or serial write.

What good looks like:
- After port confirm: ticker shows last price, a short line graph, and a headline crawl.
- A local log of what was sent to the device.
- If data is stale, show STALE — do not freeze a fake move.

Never, without asking: place a trade, flash firmware that could brick the board, or write to a port you have not confirmed. Never treat this as a brokerage.

Stop if the serial/port is ambiguous or the board does not enumerate — ask which device.
Use withGrok

via @kettlebelldan · Tweet by @KettlebellDan

Tips

  • ·Reconstructed from @KettlebellDan's published Grok Bot build. Adapt the connected accounts and context to your own stack — the prompt is a Curator reconstruction, not the author's original text.
  • ·adhoc
  • ·acts-with-approval

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Same category. Different job.

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