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Building and parsing JSON on a microcontroller with a fixed memory budget, and validating untrusted input

taught

Taught in

Requires

Required by

Local knowledge map

Local knowledge map

Choosing a relational table, a time-series database or a documen… Drawing a system's architecture and writing down the… Migrating stored settings and message formats across… Validating API input against a schema, returning useful… Choosing JSON, CBOR or Protobuf and versioning a message… Modelling telemetry as timestamped points with tags and fields,… Building and parsing JSON on a microcontroller with… Building a small Python service that consumes MQTT into… Choosing between HTTP, MQTT and WebSockets by direction, overhead,… Explaining packets, headers and encapsulation through… Getting wall-clock time onto a device with NTP, timestampin… Reading CoAP requests and responses -- confirmable messages,… Reading and building BLE advertising payloads and choosing… Calling a REST API from an ESP32 with JSON bodies, and… Telling bytes from text, reading a hex dump, and reading and… Joining a Wi-Fi network from an ESP32 in station mode,… Reading an HTTP request and response -- method, path,… Reading bits, bytes, and hexadecimal as register values

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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.