Embedded

ESP32 Ataxia Assessment Device

An ESP32 device with a custom PCB, enclosure, four Hall-effect sensors, 100 Hz acquisition, Bluetooth connectivity and MATLAB validation.

Honours measurement prototypeCase study 3 of 10

Engineering diagramFull-size image ↗

The challenge

Movement and coordination assessment benefits from repeatable sensor-based measurement rather than observation alone.

How the system works

Four Hall-effect sensing channels feed deterministic 100 Hz acquisition on the ESP32. The embedded path supports recording and Bluetooth live display, while MATLAB provides the auditable reference-instrument comparison and reporting workflow.

Design decisions

Used four Hall-effect sensing channels and deterministic 100 Hz acquisition to capture direction, reversal and movement behaviour consistently.
Kept acquisition and live display responsive on the embedded system while retaining MATLAB for auditable reference-instrument comparison.

What the evidence shows

Accuracy, direction, reversal, drift and temperature behaviour were checked against reference instruments in MATLAB. This is an engineering measurement prototype; these checks do not establish clinical effectiveness or medical-device certification.

Engineering case study

Go deeper into the design choices, tests and lessons from the project.

Read the ESP32 Ataxia Assessment Device case study

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