Build a desk box that shouts when your coding agent finishes or needs approval
His agent sat stuck at 3 a.m. waiting for approval while he slept, so a developer built a pink ESP32 desk box that shouts at him in Shanghainese when an agent finishes, fails or needs a yes.
Source
@Bright_Sun on X · 2026-10-19
Written in our own words. Credit to the original author. Link checked 2026-10-19.
What they did
His agent sat stuck at 3 a.m. waiting for approval while he slept, so a developer built a pink ESP32 desk box that shouts at him in Shanghainese when an agent finishes, fails or needs a yes.
Result (as claimed)
Open source under MIT.
Tools they used
Cost: Pricing depends on the tools you pick; check each official pricing page.
Set it up
Pick a contained repo or task
Start on a branch or side project where mistakes are cheap.
Install and configure
Set up ESP32. Read what it can run on your machine and limit permissions where possible.
Run it on a real task
Give it a well-scoped issue and let it work. Review the diff like any pull request.
Add guardrails
Keep tests and CI in the loop, and never let an agent push to main or touch production secrets unattended.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Build a desk box that shouts when your coding agent finishes or needs approval What the original author did: His agent sat stuck at 3 a.m. waiting for approval while he slept, so a developer built a pink ESP32 desk box that shouts at him in Shanghainese when an agent finishes, fails or needs a yes. Reported result (as claimed by the author): Open source under MIT. Source: https://x.com/Bright_Sun/status/2112079132502986816 Tools they used: ESP32 Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Build a desk box that shouts when your coding agent finishes or needs approval What the original author did: His agent sat stuck at 3 a.m. waiting for approval while he slept, so a developer built a pink ESP32 desk box that shouts at him in Shanghainese when an agent finishes, fails or needs a yes. Reported result (as claimed by the author): Open source under MIT. Source: https://x.com/Bright_Sun/status/2112079132502986816 Tools they used: ESP32 Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Build a desk box that shouts when your coding agent finishes or needs approval What the original author did: His agent sat stuck at 3 a.m. waiting for approval while he slept, so a developer built a pink ESP32 desk box that shouts at him in Shanghainese when an agent finishes, fails or needs a yes. Reported result (as claimed by the author): Open source under MIT. Source: https://x.com/Bright_Sun/status/2112079132502986816 Tools they used: ESP32 Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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Guides for this use case
How to build hardware projects with AI agents · How to make AI agents ask for approval before they act · How to build a smart home and voice assistant with AI agents
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