IoT & Embedded Systems

Embedded Firmware Development

Reliable, low-power firmware for the devices your product depends on.

Overview

Embedded Firmware Development

Firmware is the layer where good product ideas either come to life or quietly fail in the field. We write embedded firmware for microcontrollers and single-board computers — sensor drivers, communication stacks, power management, and OTA update pipelines — built to run unattended for years, not just survive a demo.

Discuss Your Project
Battery-Life Engineered

Sleep cycles, transmission batching, and power profiling built in from the first prototype.

Safe OTA Updates

Staged rollouts with automatic rollback, so a bad update never bricks a fleet in the field.

Production-Grade

Watchdog timers, fault recovery, and extensive soak testing before anything ships.

What We Offer

Service Scope & Deliverables

Firmware development for ESP32, STM32, Nordic nRF, and Raspberry Pi platforms
RTOS-based architecture (FreeRTOS, Zephyr) for real-time and multitasking workloads
Sensor driver development and calibration (temperature, humidity, motion, energy)
Bluetooth Low Energy, Wi-Fi, LoRa, and cellular (NB-IoT/LTE-M) connectivity stacks
Over-the-air (OTA) update pipelines with staged rollout and rollback
Low-power design: sleep modes, duty cycling, and battery life estimation
Bootloader and secure boot implementation
Firmware testing: unit tests, hardware-in-the-loop, and soak testing
How We Work

Our Delivery Process

01
Define

Hardware capabilities, power budget, connectivity requirements, and update strategy.

02
Architect

RTOS selection, driver architecture, and OTA update design before writing application code.

03
Build & Test

Iterative firmware development with hardware-in-the-loop testing at every milestone.

04
Field-Harden

Soak testing, fault injection, and OTA rehearsal before fleet deployment.

Tech Stack

Technologies & Tools

ESP-IDFSTM32CubeZephyr RTOSFreeRTOSNordic nRF Connect SDKPlatformIOJTAG/SWD debuggersSegger Ozone
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FAQ

Frequently Asked Questions

Common questions about our Embedded Firmware Development service.

Most commonly ESP32 (Wi-Fi/BLE), STM32 (industrial-grade ARM Cortex-M), Nordic nRF52/53 (low-power BLE), and Raspberry Pi for gateway-class devices. If your product is already on a specific board, we work with what you have rather than pushing a preferred platform.

Both — greenfield firmware for new products, and maintenance or feature additions on an existing codebase. For unfamiliar codebases we start with a short audit to understand architecture and risk areas before committing to a timeline.

Delta updates to minimise payload size, resumable downloads that survive a dropped connection, and a staged rollout that halts automatically if a cohort reports elevated failure rates after an update. Devices always retain a known-good fallback image.

We profile actual current draw on target hardware early, then design around it — appropriate sleep states, batched radio transmissions instead of continuous streaming, and protocol choice (BLE or LoRa over Wi-Fi where the use case allows). We give you a realistic battery-life estimate before committing to a design.

Yes — this is one of the first questions we work through with clients. Commercial SDKs speed up time-to-market but add licensing cost and less control over update cadence; custom firmware costs more upfront but gives full control. We recommend based on your volume, timeline, and long-term product roadmap.

Yes — secure boot chains, encrypted OTA payloads, and encrypted credential storage are standard on any firmware handling sensitive data or deployed in security-conscious environments (buildings, industrial sites, healthcare).

Unit tests for business logic, hardware-in-the-loop tests against real sensors and radios, and extended soak testing to catch memory leaks or intermittent faults that only appear after days of continuous operation.

Ready to get started with Embedded Firmware Development?

Our team will scope your requirements and come back with a clear proposal within 48 hours.

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