Air-quality sensor grid — School network
Calibrated PM2.5 and gas sensor networks with open data. Delivered for a school network client in Indore.
- Location
- Indore
- Year
- 2025
- Duration
- 29 weeks
- Team
- 9 engineers
- 54
- nodes
- 2.1 µg/m³
- calibrated error
- 1.2 min
- data cadence
The challenge
Existing vendors had delivered pieces of a air-quality sensor grid system, but nobody owned the integration and the pilot had stalled.
What we built
We owned the whole stack — hardware, firmware, models and dashboards — using LoRaWAN, TimescaleDB, XGBoost so there was one accountable team.
Delivery timeline
Phase 1
Discovery sprint and site survey
Phase 2
Prototype built and tested in the Motera lab
Phase 3
Pilot on site with before/after measurement
Phase 4
Scale-out, training and handover
Highlights
- Designed, built and supported from Motera, Ahmedabad
- Operator training delivered in Gujarati, Hindi and English
- Remote monitoring and over-the-air updates included
- Safety case reviewed with the client's EHS team
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