Robotics Brain Controller with SD Storage

Project overview

Circular robotics "brain" controller board built around the Nordic nRF52840, with onboard SD card storage, dual expansion headers for sensors and actuators, and USB-C charging for battery-powered robotic platforms.

Engineering approach

Robotics controllers need to juggle real-time control loops, sensor input, and actuator output without the layout introducing timing jitter or noise into the control path. On this board, that translates into a component set built around nRF52840, SD Card and USB-C Charging, with layout and stack-up decisions driven by motor drive integrity, sensor fusion timing, and expansion headers that keep the platform flexible.

Technical specification

Engineering focus

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