Embedded firmware development
Years of battery life and timing you can trust — on the silicon you chose
The difference between a device that lasts a week and one that lasts a decade is the firmware inside it — the peripheral drivers, the real-time control loops, the secure bootloader and the low-power logic. We write that layer, so your product wakes on time, runs reliably and sips power. The same engineers who build our radio and robotics programmes, on your board.
01 / What you get
SPI, I²C, UART, CAN, USB, ADC/DAC and sensor drivers, written against the datasheet and tested on the bench.
Motor control, PID, sensor fusion and timing-critical logic with measured jitter budgets.
MCUboot-based secure boot, dual-bank updates and recovery paths that survive a power cut mid-flash.
BLE, Wi-Fi, LoRa and cellular integration — from the radio driver up to the application protocol.
02 / Stack
Industry-standard, boring in the good way: tools with a future, that the next engineer will know too.
Microcontrollers
STM32
Cortex-M families from L0 low-power to H7 high-performance
ESP32
Wi-Fi and Bluetooth SoCs for connected products
Nordic nRF52 / nRF53
Bluetooth Low Energy and Thread/Zigbee radios
RP2040 & i.MX RT
Dual-core M0+ and crossover MCUs for real-time work
Runtimes & languages
Bare-metal C / C++
Deterministic control loops without an OS
FreeRTOS
The de-facto RTOS for multitasking on small MCUs
Zephyr
Linux Foundation RTOS with a rich driver model and networking
Rust (embedded-hal)
Memory-safe firmware where reliability is critical
Tooling
CMake & west
Reproducible builds across targets and CI
J-Link / OpenOCD
Debug probes, tracing and flash programming
Unity / Ceedling
Unit tests for firmware, on host and on target
MCUboot
Secure bootloader with signed, rollback-safe updates
03 / Approach
Interrupt budgets, task priorities and timing measured on the bench — not assumed.
Sleep modes and duty cycling planned from the first schematic review, verified with a power profiler.
Signed images, rollback protection and encrypted storage so the device stays yours in the field.
Every commit flashed and tested on real boards, so regressions surface before a field trial does.
04 / Standards
We adhere to industry standards and proven methods on every project — they are what makes the estimate hold.
05 / Infrastructure
Good questions
Straight answers to what buyers ask before they start.
Yes. WNC ships firmware with static analysis, fuzzing, signed versioned images and an SBOM per release, so vulnerability handling and reporting under the Cyber Resilience Act are ready from the first release.
Related work
Projects and products of ours that involved this service.
Start
Send us the schematic or the MCU part number. A firmware engineer writes back with an honest scope and price.
Let’s manage or see our IoT solutions
