IoT & Apps
Wireless Emergency Alert System
LoRa mesh alert device for steel plants, built on the Nordic nRF52840 with firmware adapted from Meshtastic, plus a real-time supervisor dashboard in Angular on ASP.NET.
Selected Work
Portfolio
Boards we've routed, firmware we've written and the apps that drive them. A cross-section of client work across industrial, medical, energy and agricultural projects.
PCB Design
Wearable Vitals Monitor
A 2-layer flex PCB engineered to fit inside a 10 mm smart ring, continuously tracking heart rate variability and syncing to iOS over BLE without draining the phone.
IoT & Apps
Industrial IoT Sensor Integration
Ruggedised environmental sensing nodes integrated into a LoRaWAN estate, with provisioning, telemetry ingestion and long-term trend dashboards.
IoT & Apps
EV Charging Hardware & App
End-to-end charge point build: PCB design and production, controller firmware, and a cross-platform .NET MAUI app for station discovery, prepaid wallet billing and alerts.
PCB Design
AMD FPGA 8-Layer Board
Eight-layer stackup for an AMD FPGA with DDR3 memory — length matching and timing tuning on the memory bus, plus a staged power-sequencing rail design.
PCB Design
ESP32 Custom Board with Ethernet
Custom ESP32 carrier with wired Ethernet for installations where Wi-Fi is unreliable — magnetics, PHY layout and an isolated supply on a compact footprint.
PCB Design
ESP32 Opto-Isolated Input Board
Opto-isolated digital input front end for industrial signals, protecting the MCU from field voltage transients and ground loops.
PCB Design
ESP32 RFID Reader
RFID reader boards built around the ESP32, covering antenna matching, read-range tuning and access-control firmware.
PCB Design
EasyEDA Design for JLCPCB Production
Production-ready design authored in EasyEDA and released straight to JLCPCB, with a 3D fit review and library parts chosen for assembly availability.
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