Testing Concurrency and Fault Tolerance in Elixir/Nerves
summary
Elixir with Nerves runs sensors on Raspberry Pis and Arduinos, using circuits_u for USB, ocx for OSC to Pure Data, and a Fenix Live dashboard; processes are gen_server per sensor supervised by a dynamic supervisor and polled at intervals. Three real failure cases are shown: disconnected wiring handled by thresholds and previous-value fallback, full board crash detected by 5s timeout, and noisy/broken readings resolved with triple modular redundancy averaging within an agreement threshold; demos recover on replug and the approach proves practical for prototyping.
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chapters (7)
- 0:00Introduction
- 2:56Hardware architecture
- 8:27Elixir architecture
- 10:16Sensor disconnection failure
- 16:01Board crash failure
- 17:49Broken sensor failure
- 21:28Real-world apps
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