HomeServicesEmbedded Firmware Development

Embedded Firmware Development

Firmware built for your specific hardware.

We provide embedded firmware development services covering architecture, wireless communication, power management and testing on real target hardware. The code is developed around the product's actual electronics and operating constraints from the start.

The Challenge

Why embedded firmware is its own discipline

Firmware determines exactly how your product behaves, including in edge cases where robustness is most important. Embedded systems have limited memory, hard power budgets and hardware that behaves differently once sensors, radios, batteries and real users are involved. Poor firmware architecture tends to show up in familiar ways: battery life not meeting specification, wireless links drop for no obvious reason, or a device locks up once every few days. Those problems are usually cheaper to remove while the architecture is still flexible than after units are already in the field.

What's Included

Embedded firmware, end to end

Every engagement is scoped around what the product actually needs, from low-level drivers through to application behaviour and long-term maintenance.

1. Architecture & Driver Development

We keep the driver, communication and application layers properly separated so changes in one part of the codebase do not ripple through everything else. Drivers are written against the datasheet for the exact sensor or peripheral being used when required, giving us control over the behaviour instead of relying on a generic library.

2. Wireless Stack Integration

We work with BLE, WiFi, LoRa, Nordic proprietary 2.4 GHz, cellular, satellite links and more. Pairing, reconnection and radio power management are treated as core product behaviour, then tested against the failure modes that happen outside the lab, including weak coverage and interrupted connections.

3. Power Management

Power decisions are based on measurements. We use a precision current meter to record actual consumption in each operating mode, then build sleep, wake and peripheral power-down behaviour around those numbers so the battery-life estimate reflects the real device.

4. Over-the-Air Updates

OTA support is designed in from the start, including secure firmware signing, rollback protection if an update fails partway and staged releases to a small group of devices before a full rollout. Retrofitting that safely after a fleet is deployed is far harder than reserving for it in the original architecture.

5. Testing & Debugging

Firmware is tested on the actual target hardware using JTAG or SWD debugging where the platform supports it. A logic analyser is used for protocol-level checks when timing or bus behaviour matters, and automated test scripts are added when the complexity makes repeated manual testing a poor use of time.

6. Documentation & Handover

We document the entire architecture, communication protocols and the design decisions in a comprehensive delivery report. The handover is designed so another engineer can get the code compiling, understand it and maintain it without reverse-engineering the project first.

Our Approach

How we approach embedded firmware

We develop firmware alongside the electronics because the two constantly affect each other. Sensor sampling rates, power domains and radio shutdown behaviour are much easier to get right when the firmware engineer understands exactly how the board works, ideally because the same team designed it. We work across many platforms, including Arduino, ESP32, STM32 and NRF52 platforms and more, along with the wireless protocols connected products tend to need. Across all of them, we keep the same standard: clean architecture, measured power use and code that another engineer can maintain without fear of breaking unrelated parts of the system.

Real Example

Embedded firmware in practice

The Smart WiFi Microphone had to stream audio in real time, respond to a single-button control scheme and still protect battery life. Those requirements were coordinated entirely in firmware, with each feature competing for the same processor time, radio time and power budget.

Read the case study

Is This For You

Embedded firmware is right for you if

You need firmware written around your exact hardware instead of adapted from a generic template.

Battery life is a hard product requirement and needs to be measured, then engineered.

Your device depends on reliable BLE, WiFi, LoRa or cellular communication.

You need safe OTA updates for devices that will already be deployed.

Existing firmware is unreliable, hard to change or difficult for another engineer to maintain.

Book a Discovery Call

Talk to us about your firmware

Book a 30-minute call to talk through the product, the hardware platform and what the firmware needs to do.