Embedded Device Prototyping And Development

Rapid, reliable embedded prototyping and development - from concept hardware to production-ready devices.

Developing embedded products demands fast iteration, strong hardware–software alignment, and early decisions that stand up at scale. Whether you’re validating a new sensing approach, tackling edge-side signal processing, or selecting the right processor, OS, or connectivity standard, our team helps you move from idea to working prototype with confidence.

We work across a broad range of platforms, including STM32, ESP32, Microchip PIC, Raspberry Pi class SBCs, FreeRTOS, Linux, and bring deep experience in sensor selection, board evaluation, hardware prototyping, and embedded software development. Our approach is hardware-agnostic and focused on selecting the right components, not the convenient ones. Every prototype is built with testing in mind, using software- and hardware-in-the-loop techniques, automated validation, and robust build and release pipelines. Typical embedded work includes BSPs (including board bring-up), device drivers, boot loaders and application development. We have also have broad connectivity experience including WiFi, BLE, LoRaWAN and Cellular.

When you’re ready to scale, we ensure your design is production-ready. That includes cloud integration patterns (OTA updates, secure provisioning, fleet management), end-of-line programming and test development, and access to our wider partner network for DFM support, approvals, and manufacturing scale-up. From first signal to field-ready device, we provide clarity, rigour, and momentum.

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What Customers Say

We helped Quensus transition from a WiFI based solution to a LoRaWAN based solution, including part selection, bring up, embedded software and AWS connectivity.

"Collaborating with Green Custard on our LoRaWAN-based IoT project for leak detection has been exceptional. Their grasp of AWS services and IoT innovation has immensely bolstered our capabilities. Their team's technical expertise, combined with a collaborative spirit, significantly contributed to the project's success, ensuring that our solutions were not only technically sound but also aligned with our business needs."

Dan Simmons, CEO, Quensus

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We have helped Carlsberg Britvic rapidly prototype their solutions, and continue today building out their Aqua Libra Flavour Tap software proposition.

"We engaged Green Custard on a PoC trial with a fairly ambiguous scope. Not only did Green Custard embrace the challenge, they very quickly became a trusted partner providing valuable guidance and going above and beyond requirements to get the job done."

Scott Mackenzie, Director Beyond the Bottle, Carlsberg Britvic

What You Gain

  • Faster prototype cycles that reduce technical risk and accelerate key decisions.
  • Hardware and software alignment delivered by engineers with broad platform expertise.
  • Evidence-based component, sensor, processor, and OS selection for your use case.
  • Production-ready patterns including OTA, provisioning, and automated testing.
  • Clear path from concept prototype to scalable, manufacturable device architecture.

How Green Custard Can Help

  • Develop functional prototypes covering sensing, processing, connectivity, and device logic.
  • Evaluate and recommend optimal hardware, SBCs, connectivity, and embedded OS choices.
  • Build robust embedded software with hardware-in-loop and automated test pipelines.
  • Integrate cloud services for OTA, provisioning, fleet insights, and secure operations.
  • Provide DFM guidance through partners covering regulatory approvals and scale-up manufacturing.

Want to learn more? Let's start a conversation...

We love to learn how people are innovating, so please get in touch to share your vision. You can reach us on email at sales@green-custard.com or give us a call on +44 1223 737 829 or book a meeting at a time which suits you