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Embedded firmware that ships and lasts

Embedded C/C++ on FreeRTOS and bare-metal. BLE, drivers, and low-power design measured in months of battery.

Inventors Tech develops production embedded firmware in C/C++ for UK and international clients — FreeRTOS and bare-metal, Bluetooth Low Energy, sensor drivers and low-power architectures on STM32, ESP32 and nRF52. The same team designs the hardware, so firmware and board are engineered together.

What's included

  • Embedded C/C++ development — clean, maintainable firmware written by engineers who have shipped production code, not just demos.
  • FreeRTOS & bare-metal — the right architecture for your product, from hard-real-time bare-metal loops to multi-tasking RTOS designs.
  • Bluetooth Low Energy (BLE) — custom GATT services, secure pairing, and mobile-app-friendly protocols on nRF52, ESP32 and STM32 platforms.
  • Low-power design — sleep architectures, wake strategies and power budgets measured in months or years of battery life, not days.
  • Drivers & board bring-up — sensor drivers, communication stacks, and bring-up of new hardware revisions.
  • Testing & QA — unit tests, hardware-in-the-loop verification and regression suites so releases don't break the field.

Which platforms do you work with?

Day to day we work with STM32, ESP32 and Nordic nRF52 microcontrollers, in embedded C and C++, on FreeRTOS and bare-metal. That covers the overwhelming majority of modern IoT products — and the underlying skills (RTOS design, DMA, interrupt architecture, low-power modes) transfer to almost any MCU your product needs.

How do you get a year of battery life?

Battery life is designed, not hoped for. We build a power budget at architecture stage, choose components for their sleep currents, and structure firmware so the device spends most of its life in deep sleep — waking only for the microseconds that matter. Our own product, CanvasBT, runs up to a year on a single charge using exactly this discipline.

Firmware that respects your hardware

Because our firmware engineers work alongside our hardware designers, firmware is planned against the real board — its power tree, its errata, its test points — from day one. If you already have hardware, we'll work from your schematics; if it's still being designed, we'll influence it while change is cheap.

Frequently asked questions

What languages do you write firmware in?
Embedded C and C++ — the industry standard for production firmware. We work across FreeRTOS and bare-metal architectures, with BLE stacks on nRF52, ESP32 and STM32 platforms.
Can you take over firmware someone else wrote?
Yes — inherited codebases are a big part of our consultancy work. We audit what exists, stabilise it, then improve it incrementally. You don't have to rewrite from scratch to get a reliable product.
Do you do over-the-air (OTA) updates?
Yes. We design update mechanisms appropriate to your product — BLE-based, Wi-Fi based, or gateway-mediated — with the safety layers (dual-bank, rollback, integrity checks) production devices need.
How long does firmware development take?
A focused driver or feature can be days to weeks; full product firmware is typically measured in months, developed in parallel with the hardware. After a free consultation we'll give you a milestone-based timeline and quote.
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First consultation is free — you'll get a clear scope, timeline and quote.

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