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.

4.8/5Client rating
111Reviews
2011Building since

Electronics6

Eight-layer STM32N6 AI camera mainboard PCB layout in KiCad

Battery-Powered AI Camera Mainboard

Eight-layer mainboard for a retail AI camera on the STM32N657 (Cortex-M55 + Neural-ART NPU) with external boot flash, controlled-impedance MIPI CSI-2 day/night camera, Wi-Fi 6 / BLE, IR + white illumination, audio, microSD, USB-C and a 1S2P Li-ion power subsystem with charger and fuel gauge.

STM32N6MIPI CSI-2KiCad8-LayerLi-ion Power
Custom smart ring flex PCB hardware prototypeSmart ring companion mobile app interface

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.

Flex PCBNordicBiosensorsBLE.NET MAUI
AMD FPGA 8-layer board layout and 3D render

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.

AltiumFPGADDR38-LayerPower Management
ESP32 custom board with Ethernet, relays and isolated I/O — 3D render

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.

ESP32Ethernet PHYAltium
ESP32 board with 20 opto-isolated inputs and screw terminals, 3D render

ESP32 Opto-Isolated Input Board

Opto-isolated digital input front end for industrial signals, protecting the MCU from field voltage transients and ground loops.

ESP32Opto-IsolationIndustrial I/O
ESP32 RFID reader board, component side 3D renderESP32 RFID reader board, reverse side with PCB loop antenna

ESP32 RFID Reader

RFID reader boards built around the ESP32, covering antenna matching, read-range tuning and access-control firmware.

ESP32RFIDAntenna Matching

Software3

DrCoolCare customer app home screen with service categoriesDrCoolCare engineer app dashboard with check-in, jobs and earningsDrCoolCare engineer app account statement and earnings

DrCoolCare Service Booking Platform

Three-sided AC and appliance service marketplace: customer and engineer apps in .NET MAUI for Android and iOS, an Angular admin panel and an ASP.NET API — OTP-gated job start, quotation and completion, live engineer tracking, Razorpay payments, GST invoicing and push notifications.

.NET MAUIAndroidiOSASP.NETAngularRazorpay
EV charging app screens: prepaid wallet, station details and connector availability

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.

STM32ESP32.NET MAUIAzurePayments
LoRa mesh emergency alert device and monitoring dashboardSenseCAP LoRa module used in the emergency alert device

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.

Nordic nRF52840LoRaMeshtasticAngularASP.NET

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