Challenge: Remote site, limited power/connectivity; multi‑sensor monitoring.
Solution: Five solar‑powered devices monitoring weather, dust, noise, tank levels; OTA; device health; Azure dashboards.
Outcome: 6+ months reliable data and uptime; actionable insights.
Objective: Stable long‑range comms for critical telemetry.
Approach: Antenna optimization; SF/BW/CR tuning; adaptive TX power.
Result: 4.4 km stable link (Office → Kodikuthimala); TTN → Azure IoT Hub; minimal packet loss; scalable to agri/env monitoring.