Skip to content
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

Choosing between HTTP, MQTT and WebSockets by direction, overhead, battery and firewalls

taught

Taught in

Requires

Required by

Nothing in the catalog needs this yet.

Local knowledge map

Local knowledge map

Choosing between HTTP, MQTT and WebSockets by direction, overhead,… Building a small Python service that consumes MQTT into… Building and parsing JSON on a microcontroller with… Pushing live device updates to a browser with server-sent… Reading CoAP requests and responses -- confirmable messages,… Running a local Mosquitto broker and publishing and… Writing event-driven rules that react to device messages… Calling a REST API from an ESP32 with JSON bodies, and… Choosing between polling an HTTP endpoint and a… Explaining publish/subscribe through a broker and… Classifying a message as telemetry, a command or state, and… Joining a Wi-Fi network from an ESP32 in station mode,… Reading an HTTP request and response -- method, path,… Tracing a TCP connection's handshake, byte strea…

Click to expand

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