Aisha Patel
PrototypeSample
Low-Power LoRa Water Meter
A retrofit pulse reader with a measured 9.6-year battery life.
- Discipline
- Electronic Engineering
- Stage
- Prototype
- Project type
- Individual
- Timeline
- Feb 2023 — Ongoing
- Owner
- Aisha Patel
Hardware and firmware for a municipal smart water metering pilot.
01
Problem Definition
Manual meter reading is slow and error-prone; replacing meters is expensive.
02
Proposed Solution
A clip-on Hall-effect pulse reader that retrofits existing meters and reports daily over LoRaWAN.
03
Results & Conclusions
Average current measured at 4.1 µA, giving a projected 9.6-year battery life on a single cell.
My contribution
Full design ownership: schematic, layout, firmware and power profiling.
Evidence
Supporting evidence
No evidence files have been attached yet.