Firmware · Hardware · Low-power wireless

Embedded engineering for products that have to work.

Copper & Code is a founder-led embedded studio with 10+ years shipping microcontroller products end to end — firmware, multi-layer PCBs, and low-power wireless across medical, industrial, and connected devices.

Available for projects Cu//CODE
Firmware
Bare-metal · RTOS · FreeRTOS · Zephyr · Embedded Linux
PCBs
Multi-layer · HDI · Altium · KiCad · CAD
Wireless
BLE · Wi-Fi · LTE-M · CAN · Zigbee
Front / Back End
React · Node.js · Python · Django · Rails
Experience
10+ years
01 / SERVICES

What we design, build, and ship

Four disciplines under one roof — so the schematic, the layout, and the firmware are built by people who talk to each other.

U1

Firmware Engineering

Bare-metal and RTOS firmware on nRF52, ESP32, and STM32 — drivers, BLE/Wi-Fi stacks, low-power state machines, and OTA that survives a bad connection.

Zephyr / NCSFreeRTOSBLE stacksOTA DFUC / C++
U2

PCB & Hardware Design

Schematic capture and multi-layer layout — power trees, mixed-signal, and RF, with HDI and via-in-pad for fine-pitch and WLCSP parts.

4–6 layerHDIRF layoutDFM review
U3

Wireless & Low Power

BLE, Wi-Fi, and cellular connectivity with current budgets measured in microamps. Antenna matching, coexistence, and battery life you can defend to a client.

BLE 5.xLTE Cat-M / NBPMICµA sleep
U4

Mechanical Designing & Development

Taking concepts from idea to physical prototype, ensuring manufacturability and performance.

3D ModelingCADPrototypingDFMVerification
02 / SELECTED WORK

A track record in hard problems

Real projects across medical, industrial, and consumer domains. Each card opens the full case study — described by sector, with client names kept for conversation.

Drop photo at
images/medical-monitoring.jpg
Wireless vital-sign monitoring device
Medical wearablesnRF52 · STM32

Wireless vital-sign monitoring

Non-invasive monitoring of ECG, blood pressure, SpO₂, and continuous glucose across patch and ring form factors — including a 5-lead ECG patch with cloud publishing and offline logging, and AI-based cuffless blood-pressure estimation running on a coin cell.

ECG · SpO₂Cuffless BPCGMCoin-cell power
View project ↗
Drop photo at
images/pyro-system.jpg
Wireless pyrotechnics firing system
Event technologyDSP · Wireless

Pro pyrotechnics firing system

A wireless firing system driving 400+ modules and thousands of cues for manual and script-based pyro and DMX shows, with a DSP pipeline decoding FSK/SMPTE audio timecode to lock every cue to a live soundtrack — plus an LVGL touchscreen UI and end-to-end encryption.

FSK/SMPTE DSPLVGL UIE2E encryptionUSB bootloader
View project ↗
Drop photo at
images/crypto-wallet.jpg
Cryptocurrency hardware wallet
Fintech securitySTM32 · C

Cryptocurrency hardware wallet

A secure hardware wallet integrating multiple top cryptocurrencies, with address generation, key derivation, and transaction signing written in C straight from the protocol white papers — hardened against tampering and encrypted end-to-end to its desktop companion app.

Key managementE2E encryptionSTM32F4Node.js app
View project ↗
Drop photo at
images/digital-nose.jpg
Air-quality and odor sensing node
Environmental sensingAWS IoT

Digital nose — air quality & odor

A battery-optimized sensor node capturing air-quality and odor signatures over SPI/I²C and publishing to AWS IoT. FreeRTOS coordinated sensing, health, and Wi-Fi — waking the radio only to publish — with OTA updates handled in the bootloader.

FreeRTOSAWS IoTOTA updatesLow-power
View project ↗
Drop photo at
images/patient-bed.jpg
Smart patient bed sensor system
Medical monitoringCAN · BLE

Smart patient bed

400+ sensors — temperature, humidity, pressure, motion — networked over inter-board CAN on STM32 in C++, with BLE and SD-card logging for live streaming and local backup, and results pushed to the cloud.

400+ sensorsCAN busBLEC++
View project ↗
Drop photo at
images/audio-boards.jpg
Pro audio and video boards
Pro-audio & videoSTM32 · RK3566

Pro audio & video boards

Production audio boards on STM32 with USB, analog, and Bluetooth-speaker inputs, running a single field-configurable binary across board variants — plus RK3566-based video boards with a smart watchdog for reliable 24/7 showroom operation.

USB AudioBluetooth audioRK3566Watchdog
View project ↗
03 / EXPERIENCE

Ten years, from bare metal to production

Team — a decade taking microcontroller products end to end, across medical, industrial, and consumer domains.

10+
Years in embedded
3
Domains — medical, industrial, consumer
US · CA · EU
Clients served remotely
FDA
Cleared devices delivered

Schematic and multi-layer PCB, bare-metal and RTOS firmware, wireless connectivity, and cloud integration — with a focus on low-power medical wearables and safety-critical devices. Delivered FDA-cleared patient-monitoring systems, secure cryptocurrency hardware wallets, and connected IoT products for clients across the US, Canada, and Europe.

04 / CAPABILITIES

The stack I reach for

Silicon, tooling, and standards from a decade of shipping — spanning MCUs, wireless, sensing, power, and the cloud behind them.

Microcontrollers
STM32 F4/L7/H5/H7nRF52840nRF9160ESP32-S3RK3566Raspberry Pi
RTOS / Firmware / Linux
FreeRTOSZephyrBare-metalLVGLBootloaders (USB/OTA)Embedded LinuxYocto / BuildrootKernel drivers / Device treeDebian/Ubuntu (SBC)systemdCross-compilation toolchainsESP-IDFNordic NCS/SDKSTM32CubeCMakePlatformIOGCC/ARM toolchainJ-Link / OzoneGDBUnity / CeedlingMbed OSAzure RTOS / ThreadX
Wireless & buses
BLEWi-FiLTE / LTE-MCANZigbee / DigiMeshUSB (CDC/MSC/Audio)
Sensing & signal
ECGSpO₂Cuffless BPCGMDSP (FSK/SMPTE)
Cloud & IoT
AWS IoT CoreAzureMQTTHTTP / OTA
Front End & Back End
React / Next.jsNode.js / ExpressPythonDjango / FastAPIRuby on RailsREST APIsPostgreSQL / MongoDB
PCB & mechanical
AltiumProteusBoard bring-upSolidWorksKiCadEagleOrCAD / Cadence AllegroFusion 360Inventor
Security
Key managementE2E encryptionSecure firmware
Languages
CC++PythonMATLAB / SimulinkNode.js
05 / HOW WE WORK

From constraint to manufacturable design

A sequence, not a scramble. Every stage produces something you can review before we move to the next.

01

Scope

We map the product, its constraints, and the real risks before drawing a single trace — so nothing expensive surprises us in month three.

02

Architect

Hardware block diagram, MCU and power selection, and firmware structure — decided together, because they constrain each other.

03

Build

Schematic, layout, and firmware developed in parallel so that bring-up is a formality, not a fire drill.

04

Bring-up & test

Boards populated, debugged, and characterised against real targets and real signals — with the data to prove it.

05

Handoff

Manufacturable design files, documentation, and firmware — packaged so your team, or your CM, can take it and scale.

06 / STUDIO

A distributed studio, on your clock

People and points of contact across four time zones — so your project keeps moving while you sleep, and there's someone in a nearby hour when you need to talk.

HQ · Engineering
Lahore
PK — Pakistan
Design & firmware lab
[ Street address ]
PKT · UTC+5
Local contact
Sydney
AU — Australia
[ Street address ]
[ Suburb, NSW ]
AEDT · UTC+11
Local contact
Berlin
DE — Germany
[ Straße + Nr. ]
[ Berlin ]
CET · UTC+1
Local contact
London
UK — England
[ Street address ]
[ London ]
GMT · UTC+0
07 / CLIENT FEEDBACK

What clients say — and your turn to weigh in

Feedback from teams I've built for. Worked with me before? Add yours below — the ones I feature land right here.

★★★★★

[ Replace with a real client quote — what you built for them and how the project went. Keep it to two or three sentences. ]

Client name
Role · Company
★★★★★

[ Replace with a second client quote. Specific results — “shipped on time”, “passed certification”, “battery life doubled” — land best. ]

Client name
Role · Company
★★★★★

[ Replace with a third client quote. A short line about working style or communication works well here. ]

Client name
Role · Company
08 / START A PROJECT

Tell us what you're building.

Send a brief — even a rough one. You'll hear back within two business days, from an engineer, not a sales bot.

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