I’ve built an IoT device to let my family know when I’m in a meeting
Introducing the IoT device Tabajara: “I’m in a meeting.”
I’ve built an IoT device to let my family know when I’m in a meeting launched on May 11, 2025 with 121 votes, #374 of 7,905 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
This IoT device notifies family members when the user is in a meeting, helping them know when not to interrupt. Designed for remote workers and professionals, it automates status communication without requiring manual updates. The device integrates meeting schedules to provide real-time availability information, making it useful for households where multiple people need to coordinate around work commitments.
written from the facts on this page · September 2026
From the sources
Do you work from home, and do people in your household always show up at the worst possible moments? Let me introduce the “I’m in Meeting” IoT device: it lights up at your office door whenever you turn on your webcam. It consists of an ESP32 with mDNS connected to Wi-Fi, using the Arduino framework for simplicity. The ESP32 exposes an HTTP server that handles a PATCH request on the /camera endpoint. This endpoint receives a JSON payload with a status of “on” or “off”, and turns the LED panel red or blue accordingly. For those who don’t know, mDNS (or Bonjour on Apple platforms) is a way to assign an IP address to a .local hostname for the device, so I don’t need to figure out its IP…from nullonerror.org
Does a similar job
all alternatives →
Bluedot 1.12024 · bluedothq.com · ▲804Hello Hacker News! We've noticed that many people use Loom to record their meetings in the background, which may prompt some privacy concerns. As a solution, we've built a simple extension that notifies users about the ongoing recording of meetings (without the need for inviting a virtual participant). Additionally, this tool allows for the generation of customizable meeting notes. Let me know what you think about it!
An app that helps engineers fight back against pointless meetings2021 · github.com · ▲162Clockwise is a meeting cost calculator designed to encourage more efficient meetings. - syncfast/clockwise
I built a "Do not disturb" Device for my home officeJan 2026 · apoorv.page · ▲99I created a custom hardware solution to prevent my parents from walking in on my meetings. Because a locked door is just a suggestion.
OnTime Meeting Alarm2023 · play.google.com · ▲62Automatically create alarms for Google Calendar meetings
Roundee.io - Smarter video meetings2017 · ▲64All-in-One solution for easy video meetings wherever you are
More work this month
the category →
Endless lofi beats composed live in your browser, over pixel-art nights in Paris, Tokyo, New York, Hong Kong, Sydney, San Francisco and more. Free, no sign-up.
Work · 27d ago · loficities.com
Smooth Recorder▲257Mac screen recordings that look edited when you hit stop
Work · 21d ago · smoothrecorder.com
Work · 15d ago · readrare.com
Source: Show HN post ↗
Launched alongside, May 2025
the whole month →
Tapflow 2.0▲1,125We built Tapflow for devs, designers, PMs, and tech folks who’ve been sitting on internal docs, templates, and systems — but never productized them. Upload a PDF, notes, or workshop deck, and Tapflow drafts a structured product (with chapters, teaser and pricing plans). It’s good for AI kits, onboarding guides, design systems, and frameworks. You can sell through Stripe, LemonSqueezy, or PayPal. Real-time collaboration is in early beta. No site builder, no LMS — clean design and just focused tools to ship. Fully bootstrapped and just launched on PH today →…
Work · 2025 · tapflow.ai
- C9
Life & fun · 2025 · felixrieseberg.github.io
Appwrite Sites▲990Appwrite 2.0 brings a new engine, a rebuilt Console, five database types, an S3 API, an OAuth 2.1 server, and organization-level Domains and Firewall.
Dev tools · 2025 · appwrite.io
