Compact Medical Sensor Module

Project overview

Compact wearable medical sensor board built around the Nordic nRF52840 and a biosignal sensor front end, with NFC for pulling data directly off the chip and configuring the device live, without needing a physical connection.

Engineering approach

Medical and biosignal electronics carry tight requirements around noise floor, shielding, and repeatable measurement accuracy. On this board, that translates into a component set built around nRF52840, Bio Sensor and NFC, with layout and stack-up decisions driven by signal integrity, low-noise analog front-end layout, and careful grounding to keep biosignal readings clean.

Technical specification

Engineering focus

This portfolio project demonstrates CircuitNexa's electronics engineering and PCB design work in the medical devices space. The design shown here is part of a broader portfolio spanning schematic capture, PCB layout, embedded firmware, prototyping, and support through to manufacturing.