11 May 2025 Introducing the IoT device Tabajara: “I’m in a meeting.” 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 JSO...