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Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

iot

Pushing live device updates to a browser with server-sent events or WebSockets

taught

Taught in

Requires

Required by

Local knowledge map

Local knowledge map

Flagging anomalies on the device with thresholds, hysteresi… Choosing between a PWA, a native app and a messaging bot for… Designing thresholds and alerts with hysteresis, hold time… Pushing live device updates to a browser with server-sent… Authenticating devices and users to an API with per-device… Choosing between HTTP, MQTT and WebSockets by direction, overhead,… Choosing email, push or chat notifications by their delivery… Reading the same back-end service in Python, TypeScript an… Testing a back end with unit tests and integration tests… Validating API input against a schema, returning useful… Writing event-driven rules that react to device messages… Building a small Python service that consumes MQTT into… Choosing between polling an HTTP endpoint and a… Calling a REST API from an ESP32 with JSON bodies, and… Reading an HTTP request and response -- method, path,… Splitting an IoT back end into ingest, state, API and jobs,…

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Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.