A PCB in the foreground and a computer screen with a piece of code in the background

Firmware Development Services

We develop production-ready firmware for microcontrollers and digital signal processors, turning hardware requirements into stable device functionality. Our embedded firmware development services cover performance, resource usage, and integration with surrounding hardware and software components. You receive documented, maintainable software designed for reliable operation and further product development.

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Our company develops low-level firmware and redesigns and debugs your firmware to optimize performance. We design both bare-metal and RTOS-based firmware.

What we do

Firmware can become a bottleneck even when the hardware is well designed. Our firmware development services resolve performance limitations, communication failures, and low-level integration issues across microcontroller- and SoC-based systems. We develop new firmware, improve existing code, and work with operating systems, peripheral interfaces, and diagnostic tools to achieve stable system behavior throughout the product lifecycle.

RTOS Development

Industrial controllers, medical equipment, and robotic systems must execute multiple tasks while maintaining precise timing. We develop custom firmware using FreeRTOS, Zephyr, ThreadX, NuttX, and other real-time operating systems to schedule tasks deterministically. The result is predictable response times and stable system behavior under changing workloads.

ROS Development

Reliable robotic automation starts with software that coordinates every device in the system. We combine firmware design services with ROS integration to connect sensors, motion controllers, and embedded systems within a unified communication framework. The result is precise machine coordination, faster deployment of robotic cells, and easier expansion of manufacturing and warehouse automation systems.

Bare Metal

Some embedded products perform best without an operating system. We develop bare-metal firmware that runs directly on the microcontroller, minimizing latency, reducing memory footprint, and providing precise control over hardware resources. It is well suited for industrial controllers, motor drives, and safety-related electronics that require deterministic behavior from the moment power is applied.

Digital Signal Processing (DSP)

When signal processing workloads outgrow the capabilities of a general-purpose MCU, DSP architecture becomes the right choice. We develop digital signal processing software that leverages DSP architecture to accelerate filtering, spectral analysis, and other compute-intensive algorithms. The result is faster data processing, lower energy consumption, and dependable operation in portable medical devices, measurement instruments, and industrial automation equipment.

Hardware Abstraction Layer (HAL)

Changing hardware shouldn't mean rewriting your firmware. We separate application code from hardware-specific code through modular hardware abstraction layer design. This architecture lets your team move to new microcontrollers with minimal firmware changes, reducing porting effort and helping keep development on schedule.

Legacy firmware migration

Many embedded products rely on firmware that has evolved over years with little documentation or consistent architecture. Our legacy firmware migration services analyze existing code, reconstruct the original design intent, and reorganize the software into a maintainable structure. This lowers support costs, reduces development risk, and makes future enhancements faster and more predictable.

MCU firmware porting

Choosing a new microcontroller is often driven by supply availability, product expansion, or new functional requirements. We adapt firmware for alternative MCU platforms by updating drivers, startup code, peripheral configuration, and device initialization for reliable operation. This keeps product development on schedule and gives engineers greater flexibility as hardware requirements evolve.

What You Get

Documentation

We provide comprehensive firmware documentation covering software architecture, module descriptions, communication protocols, HAL documentation, API references, and build instructions.

Source Code

You receive the firmware source code, project files, build scripts, and any third-party libraries used in the project. The code is structured, documented, and ready for future maintenance and development.

Verification & Test Reports

We deliver firmware verification and test reports covering functional, interface, performance, and hardware integration testing. The results confirm correct operation on the target hardware.

Intellectual Property Rights

After project completion, you receive full ownership of the firmware, source code, documentation, custom algorithms, and all project deliverables, giving you full control over future development and manufacturing.

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Our projects

Check Integra’s previous projects delivered within our firmware development services.

Aircraft Towing Protection System

The system helps airport ground personnel carry out aircraft towing safely. It consists of parking sensors, a mobile app, and a web portal.

Aircraft
Embedded hardware development
Embedded software development
Firmware development
Mobile app development
Web development

SEE THE PROJECT READ THE REVIEW

Customizable Capacitive Keyboard

Integra Sources created a highly customizable keyboard that meets all modern requirements and will appeal to the fans of exclusive products.

Consumer electronics
Embedded hardware development
Firmware development
PCB schematic and design

SEE THE PROJECT READ THE REVIEW

Vibration Conditioning Solution for Industrial Automation

The solution measures industrial machinery vibration. We implemented analog and digital filters that make the output signal smooth and strong.

Embedded hardware development
Firmware development
Industrial solutions

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Medical Alert Bracelet That Delivers Assistance at the Touch of a Button

A bracelet designed for patients at military hospitals and clinics in the USA. It notifies hospital staff about an emergency with the patient.

Embedded hardware development
Embedded software development
Firmware development
Healthcare
IoT
Wearable

SEE THE PROJECT READ THE REVIEW

See All Our Projects

Reviews

"Integra Sources' extensive preparation beforehand helped give confidence to the client that they chose the right partner. Despite the time difference, they are able to stay in constant communication. Integra's dedication to the project has led the client to develop an ongoing relationship."

Christophe Baudia

CEO at GeoMoby

"The database has satisfied all scope requirements. The upgrades have improved communication and performance. Team strengths include accessibility and problem-solving and they are unafraid to research problems and develop their own solutions. Integra demonstrated strong management skills when they managed our servers for a week during an important trade show; we showcased our product at the event. Communication channels are always fluid and straightforward."

Eduardo Ruiz

Founder & CEO at Ruiz Aerospace Manufacturing

"Integra's team helped us clarify our requirements and change systems architecture to achieve the final goal. I'd say that the flexibility and enthusiasm of both engineering and management teams throughout the whole project were some of the things we value most in our collaboration."

Dr. Sam Wass

University of East London

Awards

Frequently Asked Questions

Read this information to better understand our firmware development services.

How do you approach firmware architecture for resource-constrained MCUs?

We start by identifying timing-critical tasks, memory limits, and power constraints. Then we build a modular architecture with a lightweight HAL, well-defined interfaces, and only the software components the application requires. For more complex systems, we may use an RTOS; for simpler ones, bare-metal firmware is often the preferred approach. This custom firmware development approach keeps firmware efficient, easier to maintain, and ready for future updates.

How do you handle real-time constraints in firmware for time-critical applications?

We design firmware for deterministic behavior from the start. Depending on the application, we choose bare-metal architectures or RTOS-based scheduling, prioritize time-critical tasks, minimize interrupt latency, and use DMA to reduce CPU overhead where appropriate. We then measure execution timing under real operating conditions and optimize critical code paths until the firmware consistently meets the required response times.

Can you take over and debug firmware that another team started?

Yes. We regularly take over firmware projects at different stages, whether they involve unstable code, missed deadlines, or unfinished development. We start with a technical review of the codebase, hardware, build environment, and documentation to identify the root causes of existing issues and prepare a recovery plan. We then continue firmware programming, debugging, optimization, or feature development while keeping proven functionality intact.

How do you ensure firmware reliability in the field after deployment?

We design firmware for long-term reliability, not just successful lab testing. Before release, we validate it under real operating conditions using stress testing, fault injection, power cycling, and communication loss scenarios. We build in watchdogs, robust error handling, logging, and recovery mechanisms to improve fault tolerance. After deployment, we can investigate field issues, deliver validated firmware updates, support hardware revisions, and provide ongoing maintenance throughout the product lifecycle.

What's your process for optimizing existing firmware for performance or power consumption?

We begin by profiling the firmware to identify the main sources of CPU load, memory usage, and power consumption. We then refine algorithms, reduce interrupt latency, optimize memory access, remove unnecessary processing, and improve peripheral and power management where it delivers measurable benefits. Finally, we verify the changes through functional, timing, and stress testing to ensure performance gains never come at the expense of reliability, deterministic behavior, or real-time operation.

Can you develop firmware that complies with industry-specific standards (e.g., MISRA C, IEC 62304, industrial safety requirements)?

Yes. We can develop firmware in accordance with project-specific coding guidelines and regulatory requirements whenever they apply. Our team follows coding guidelines such as MISRA C, maintains the documentation, traceability, verification, and testing practices expected by standards such as IEC 62304, and aligns development with functional safety requirements for industrial applications. We tailor the development process to your target market, certification goals, and compliance requirements from the outset to simplify validation, certification, and regulatory approval.

I don't have hardware ready. Can you build firmware without it?

Absolutely. Firmware development doesn't have to wait until the first hardware prototype is assembled. We can begin using your hardware specification, preliminary schematics, MCU datasheets and suitable evaluation boards, building and testing much of the firmware before custom hardware is ready. Once the prototype arrives, we focus on board bring-up, hardware-specific drivers, and final integration.

What is your usual approach to firmware development?

We begin by understanding your product goals, hardware capabilities, and project constraints. From there, we plan the development roadmap, implement the firmware in manageable milestones, and integrate it with the target hardware as the project progresses. Each stage includes code reviews, debugging, and validation, allowing us to identify issues early, adapt to changing requirements, and keep development predictable from prototype to production.

Our tech stack

Languages

Frameworks and Toolkits

Processor Architectures

IDE

Interfaces

Wireless Technologies

Data Communications Protocols

CF/MMC/SD

DVI

Ethernet

HDMI

I2S

LAN

LCD

LPC

PCI

PCI-E

SATA

USB

10G

SPI

RS-232

RS-485

RS-422

CAN

I2C

UART

MIPI

DSI.

AMQP

CAN

Custom data exchange protocols

HTTP/HTTPS

Modbus

Modbus TCP/IP

MQTT/MQTT-SN

REST

SOAP

SSL

WebSocket.

Industries

LEARN MORE ABOUT THE INDUSTRIES WE WORK WITH

Agriculture

Environmental sensing, actuator control, and wireless connectivity for agricultural robots, monitoring equipment, precision farming systems, and smart irrigation systems.