A bench instrument that measures how much lead is in human tissue. We built the carrier board it runs on and the Linux BSP that brings it up.
Lead poisoning is diagnosed from tissue, and the numbers that matter sit at micrograms per gram. An instrument reading at that level has to keep its analog path quiet while a touchscreen, Wi-Fi, and USB 3.0 all run a few centimetres away. There was no off-the-shelf carrier board that carried those interfaces without polluting the measurement, and none that came up cleanly enough for a device a clinic would rely on.
A specialised carrier board designed around the instrument: schematic, component selection, footprints, and PCB layout done in-house.
High-speed interfaces routed with the measurement in mind, with Wi-Fi, USB 3.0, and the touch controller kept clear of the analog path.
A custom Linux BSP so the board boots predictably and every peripheral is supported by the platform rather than patched on top of it.
Prototyping, testing, and embedded software development carried through to a working instrument.
A working analysis instrument with a carrier board and Linux platform built for it specifically, holding a clean measurement path while running a modern touchscreen interface on the same hardware.
