Why Your Next Hardware Project Should be Built With Nerves
summary
Builds a desktop air quality monitor called BreatheX using BME680, Raspberry Pi 3, a NeoPixel stick and a 5V fan, total parts about $68. It samples temperature, humidity, pressure and VOCs every 10 seconds (~8,600 data points/day), writes state to a local agent, and pushes readings asynchronously to Google Cloud Datastore. Uses Nerves for concurrency, supervised processes, A/B boot partitions for safe OTA updates, and a NeoPixel color meter display; the device runs stably even without cloud connectivity.
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chapters (9)
- 0:00Introduction
- 2:59Project concept
- 7:12Hardware components
- 11:58Voltage dividers
- 13:56Why Nerves over C
- 16:16Data collection and output
- 20:28Hardware limitations
- 24:31Elixir and Phoenix
- 26:11Nerves benefits and community
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