PCB Design · Designed

UAV Li-ion Cell-Monitoring Board

A BQ76952-based board that measures UAV battery-cell voltage and temperature and reports data to a Raspberry Pi through a multiplexed I²C architecture.

BQ76952AltiumI²CRaspberry PiLi-ion

Assembled SUAV BQ76952 cell-monitoring board

Objective

A three-person Schulich UAV project to provide the aircraft with detailed battery telemetry. The board interfaces the BQ76952 monitor with cell-voltage and temperature sensing and connects multiple devices to a Raspberry Pi through an I²C multiplexer.

My contribution

Led a three-person design team

Translated system needs into board requirements

Developed the Altium schematic

Supported PCB architecture and layout

Planned Raspberry Pi communications

Coordinated integration decisions

Design process

The project required balancing device requirements, pack-level safety, host communication, connectorization, and integration constraints. I coordinated the design while remaining directly involved in the electrical implementation.

Technical challenges

The design had to resolve these system-level and implementation requirements.

Li-ion cell-voltage monitoring

Temperature sensing

BQ76952 integration

I²C host interface

Multiplexer support

Aircraft-ready electrical integration

Validation or results

The board design establishes a scalable route for collecting voltage and temperature telemetry from the UAV battery system. Public documentation is limited to non-sensitive design context.

Images and diagrams

Selected project photographs and design captures. Open any image to inspect it at full resolution.

Altium 3D render of the completed SUAV cell-monitoring PCB — Full-board 3D render — six-channel SUAV battery cell-monitoring architecture

BQ76952 cell-monitoring channel schematic in Altium Designer — Representative BQ76952 monitoring channel — cell inputs, filtering, thermistors, and I²C

Tools and technologies

BQ76952 · Altium · I²C · Raspberry Pi · Li-ion

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