firn
Custom air-quality monitoring hardware, its firmware, a cloud API, and the app that reads it — the whole chain.
- Years
- 2025—26
- Stack
- IoT · Go
- Status
- In progress
What it does
Monitors air quality in the home from custom devices, reporting into a cloud API and surfacing in a Flutter app for monitoring and control.
How it is built
Custom AQM hardware and firmware, a Go cloud API at firnapi.northisland.tech, and a Flutter mobile app. This is the one project in the index where the stack starts at the physical device rather than the screen.
Where it stands
The code pipeline works and is deployed. The remaining work is hardware bring-up: getting one real device flashed, provisioned, registered, and landing sensor readings in the app end to end.
This entry was drafted from the project's own notes and has not been reviewed by Jonathan. Still to come: Photographs of the hardware, the sensor selection and enclosure decisions, and readings from a device in service.