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Build Your Own IoT Backend: IoTFlow, a Self-Hosted Platform with a Python SDK
Most IoT tutorials stop at blinking an LED, then hand you a cloud account with a device cap and a monthly bill. IoTFlow is our free, self-hosted alternative — an open-source platform that connects Arduino, ESP32 and Raspberry Pi over MQTT or HTTP, gives you Blynk-style virtual pins for real-time control, and ships a Python SDK that takes three lines to stream telemetry. Here is the architecture, a working quickstart, and how it maps onto the IoT skills employers actually ask for.