IoT on Ben Shaji (b3nsh4) https://b3nsh4.com/tags/iot/ Recent content in IoT on Ben Shaji (b3nsh4) Ben Shaji (b3nsh4) https://b3nsh4.com/images/og-card.png https://b3nsh4.com/images/og-card.png Hugo -- 0.157.0 en-us Mon, 20 Oct 2025 10:35:07 +0530 Device Discovery in MQTT: Using Retained Messages as a Service Registry https://b3nsh4.com/blog/2025/mqtt-retained-messages-device-discovery/ Mon, 20 Oct 2025 10:35:07 +0530 https://b3nsh4.com/blog/2025/mqtt-retained-messages-device-discovery/ Use MQTT retained messages as a device registry. Devices publish a manifest on boot, and Last Will and Testament clears it when they drop offline.