Case Studies
17 projects across medical, industrial, security and consumer hardware — from board bring-up and custom bootloaders to companion apps on both stores. Every number below comes from delivered work.
Flagship projects
Clinical Health Wearable
Wristband firmware + companion app
Full-lifecycle firmware for an FCC-certified clinical health wristband on the dual-core nRF5340 — 30-day battery, 4× BLE throughput, MCUboot OTA, full test coverage and CI/CD — plus its C#/.NET MAUI companion app.
Asset-Tracking Firmware & Apps
Wirepas mesh + 5-year beacon tracker
Multi-year consulting on an asset-tracking product line: a beacon tracker reaching 5+ years of battery life on Silicon Labs EFR32, Wirepas Mesh firmware on nRF52840, and cross-platform companion apps — delivered with CI/CD and automated test suites.
A21 — Code-Protected Firmware Library
Syscall-style ABI on bare metal
Turned a tightly coupled access-control codebase into a reusable, code-protected binary firmware library with an OS-like syscall ABI — so one physical board ships as multiple products, each just a simple business-logic app on the shared precompiled library.
GoGoPowerJuice — Power-Bank Rental System
USB-C PD charger hardware + full software stack
Built both halves of a power-bank rental product — the multi-channel USB-C Power Delivery charging hardware (5- and 10-channel from a single 180 W supply) and the complete software system: vending kiosk, backend, frontend and rental app.
OpenThread Marine Control System
Hydraulic anchors & trolling motors
Replaced a collision-prone legacy broadcast mesh with an OpenThread network for reliable control of marine hydraulic anchors and trolling motors, plus ThingsBoard cloud and Alexa voice control — designed, built and demoed in four months.
Lift Monitoring System
CircuitPython → Zephyr, with an algorithm simulation framework
Took an elevator-monitoring product from CircuitPython prototype to production Zephyr firmware on STM32L0 with NB-IoT, and built a simulation harness that replays real trip data through the shipping C algorithm — cutting months off device testing.
More delivered work
Environmental Monitoring Node
LoRaWAN + BLE, 3+ year battery
A battery-powered environmental node (RH, temperature, lux, UV) that runs 3+ years on two AA lithium cells — LoRaWAN telemetry plus a BLE companion app for configuration, missing-sample recovery and MCUboot OTA.
Locomotive Controller Migration
Legacy CAN → nRF5340 + BLE
Migrated a legacy locomotive controller onto a new nRF5340 board — behaviourally feature-identical to the original CAN controller, including man-down operator safety — with an added BLE backhaul and companion app for testing and diagnostics.
GPS Hazard-Warning System
Mountain-terrain driver assistance
A complete GPS-based hazard-warning system for mountain roads — a dual-MCU device with a dual audio-amplifier subsystem that tracks the vehicle's position, detects upcoming terrain hazards and plays pre-recorded voice warnings to the driver.
Multi-Credential Access Control
Door & perimeter controller
A feature-complete access-control platform on Atmel SAMD21 — man-trap, controlled access, maintenance mode and tamper detection with the full spread of industry credential technologies — in production, with performance work that cut reaction time 2× and OTA time 5×.
Connected Access Control Board
STM32F4 + ESP32 dual-processor
A cloud-connected single-door access controller built as a dual-processor system — an STM32F4 host owning the security-critical real-time logic, an ESP32 handling WiFi and BLE — so the radio never touches the access path. MQTT cloud control, with OTA over both MQTT and BLE.
Connected Vending Kiosk
Flutter UI on Raspberry Pi + cloud sync
A cloud-connected vending-machine kiosk on Raspberry Pi — a Flutter UI running full-screen in locked single-app mode, backed by a native peripheral-control layer that drives the machine's hardware and keeps inventory in sync with the cloud.
Protein Filtration Control Library
Bioprocessing TFF system
The Windows control library behind a tangential-flow-filtration system for a US bioprocessing-equipment manufacturer — real-time monitoring and control of 50+ parameters, with a PID rewrite that reached steady state 3× faster at 2× lower error.
Blood Slide Heater
Precision thermal profiling for medical labs
A precision blood-slide preparation instrument delivered in three months — hand-tuned PID thermal control with programmable multi-step temperature profiles — now in production use at labs.
MOSIP Identity-Management Platform
Biometrics with PKI trust
A proof-of-concept identity-management stack on the open-source MOSIP standard — the platform behind national-ID programmes — with biometric capture on a Raspberry Pi 4 device server and certificate-chain trust securing identity at every stage.
BLE Beacon Mesh Home Automation
Retrofit switchboard system
A complete retrofit home-automation system — custom mains-side hardware, a custom BLE beacon mesh protocol and an Android app — that ran a real house for 2+ years of continuous operation.
Gyani — Robotics Learning Platform
Bytecode-interpreting embedded OS + flowchart IDE
An entire ed-tech product built solo — custom PCB, bytecode-interpreting embedded OS, flowchart-to-bytecode compiler, desktop and Android apps, and an OTA bootloader. Completed and taken beyond proof-of-concept.
Have a project like one of these?
Tell us the constraint that worries you most — battery, certification, throughput, timeline — and we'll tell you straight whether we've solved it before.