Firmware Development Services
Firmware for connected devices that has to run for years: microcontroller and embedded Linux firmware, secure boot, signed over-the-air updates and tested releases. From the team behind LaMetric, with ~75,000 devices online and 250 OTA releases shipped to our own fleet.
OTA releases shipped to our own fleet
Devices online
Fleet monitoring and support
Countries our devices ship to
The problem
Firmware often grows without structure. It is hard to test, hard to update and fragile in the field, so customers find the bugs instead of the tests. Fixing that after launch costs far more than designing for it.
Untested code
Bugs reach customers because nothing tests the firmware on real hardware before release.
No safe update path
Devices in the field can't be fixed without a site visit, and every update risks bricking a device.
Security and the EU CRA
Unsigned software, keys on laptops and missing updates are now a market-access problem under the Cyber Resilience Act.
Power, timing and boot time
Battery life, real-time behaviour and boot time miss the target, and customers notice.
What we do
Firmware you can test, update and maintain for the life of the product, from the first architecture decision to signed releases in the field.
Firmware architecture
RTOS (FreeRTOS, Zephyr), bare-metal or embedded Linux structure, drivers and the update path designed together, so the firmware stays testable and maintainable as features grow.
MCU firmware development
Firmware for microcontrollers on platforms we work with, such as NXP, ST and Nordic: drivers for sensors, radios and peripherals, low-power and real-time optimisation, and a bootloader that supports secure updates. Built with tests from day one.
Embedded Linux, BSP and drivers
Board bring-up, U-Boot, kernel drivers and device tree, and reproducible Yocto or Buildroot images. Boot time, power and memory optimised: on an industrial HMI we cut boot time from 55–60 s to 10 s.
Connectivity and cloud integration
Wi-Fi, BLE, LTE-M/NB-IoT and Ethernet; MQTT and HTTPS; offline buffering and store-and-forward; industrial and energy protocols such as Modbus, CAN and BACnet.
Secure boot and key management
A chain of trust from ROM to application, a signing infrastructure that keeps keys off developer laptops, encrypted storage and secrets handling, with TPM 2.0 where the hardware has it.
OTA updates that never brick a device
A/B or recovery-based updates, signed and encrypted images, automatic rollback on failed boot, delta updates for constrained links, MCU and co-processor updates, and staged rollouts with Mender, RAUC or SWUpdate.
Testing, CI and releases
Unit and hardware-in-the-loop tests on every change, reproducible builds and signed release automation in GitHub Actions, GitLab CI or Jenkins, with quality gates before anything reaches the fleet.
MCU and SoC migration
A new microcontroller, SoC or system-on-module because of cost, end-of-life or performance: target selection, BSP and driver porting, an update path from old to new hardware, and requalification.
Compliance and documentation
Firmware ready for the EU Cyber Resilience Act: SBOM, vulnerability handling and security updates over the product's life, plus support for CE, RED and FCC with pre-compliance testing and technical documentation.
Edge AI firmware
Camera and image pipelines, model optimisation and quantisation, on-device inference with TensorFlow Lite or OpenCV, and model delivery via OTA.
Firmware for energy and charging devices
EV chargers with OCPP, inverters and PV monitoring with SunSpec and Modbus, HEMS and EMS controllers with EEBUS: firmware, connectivity, OTA and production test for energy devices.
Our Engineering Process
Firmware built to be tested, updated and maintained.
1. Requirements
2. Architecture
3. Implementation
4. Testing and CI
5. Release and support
Case studies
Our own product, end to end: industrial design, electronics, firmware, cloud, volume production and years of OTA updates in the field.
How we added a verified boot chain, encrypted storage and a secure flashing tool to a European OEM’s Linux EV chargers, including units already installed, without changing the hardware.
How we cut the boot time of a Linux-based HMI panel from about 55–60 to 10 seconds with software alone, so operators never lose sight of live production data after a restart.
How we turned data from hundreds of inverters, meters and gateways into live, branded screens that install in about 10 minutes and run 24/7, managed and updated over the air.
Related accelerators
Service Category
An edge energy management foundation built on the inverter, meter and battery integrations proven in our own LaMetric smart energy displays: Modbus and SunSpec, fully on site, steering EV chargers, heat pumps and water heating to solar surplus and cheaper tariffs.
Service Category
Our production test framework: SMT tests for PCBs, FATP tests for finished devices, aging, and a report for every unit. Built for our own LaMetric production and adapted to your product.
Planning something similar?
Tell us where you are. A senior engineer replies within one business day.
Related services
Firmware for microcontrollers that has to run for years: drivers, RTOS or bare metal, low power, connectivity and a safe update path, with tests on real hardware from day one. We work with MCUs from NXP, ST and Nordic.
Production-grade embedded Linux for connected devices: from board bring-up to a maintained, updatable OS image.
Board support packages that boot reliably, support all your peripherals and can be upgraded for the life of the product.
A chain of trust from ROM to application, so devices only run software you signed. Ready for the EU Cyber Resilience Act.
Over-the-air updates that never brick a device: A/B partitions, signed images, rollback and staged rollouts.
Automated builds, tests and releases for embedded products, from commit to a signed image on a device.
Reliable device connectivity and the middleware that ties sensors, protocols and the cloud together.
Move to a new system-on-module or SoC because of cost, end-of-life or performance, with the software coming along.
Vision and AI that run on the device: camera pipelines, on-device inference and models you can update across the fleet. Start from our Industrial Vision Box platform instead of building the stack from zero.
Get connected products through CE, RED and FCC with fewer surprises: design for compliance, pre-compliance testing and test lab coordination.
FAQ
What does a firmware development service include?
What is the difference between firmware and embedded software?
Do you work with an RTOS or bare-metal?
Which microcontrollers do you work with?
Can you take over existing firmware?
How do you make firmware updates safe?
Can OTA be added to devices already in the field?
How do you test firmware?
Do you develop firmware for EV chargers, inverters and energy managers?
Does firmware have to comply with the Cyber Resilience Act?
Can you migrate our firmware to a new microcontroller or SoC?
Who owns the code?
Can we start with one phase?
Talk to an engineer, not a salesperson
Idea, prototype, production or a fleet in the field: tell us where you are. A senior engineer replies within one business day.
Your benefits:
- Senior embedded engineers
- Hardware, firmware and cloud
- From prototype to fleet
- Clear scope and next steps
- Direct technical answers
- No sales pitch
What happens next?
A free 30-minute call with a senior engineer
A short technical discovery
A proposal with scope, timeline and cost
