Turning a $5 Microcontroller Into a Network Monitoring API

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Learn how to turn an ESP32-C3 into a REST API that serves Wi-Fi telemetry as JSON, supports browser requests, and uses mDNS for local discovery.
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The ESP32-C3 is converted into a lightweight REST microservice, allowing any browser or terminal on the local area network to query its status in real time. The microservice overcomes modern networking challenges, including CORS and zero-configuration local service discovery, to provide a predictable and structured JSON response.