Firmware that is correct, testable and still maintainable long after the first release ships.
We write bare-metal and RTOS-based firmware for microcontroller and edge-IoT products, driver layers, communication stacks over UART, SPI, I2C and CAN, and the state machines that tie sensor inputs, timers and communication events together into predictable device behavior.
Beyond making a device work once, we build in the discipline that makes firmware maintainable: clear module boundaries, versioned releases, an update path for devices already in the field, and code structured so an engineer who wasn't in the room for the first release can still understand and extend it.
Where firmware projects most often get stuck, and what we address.
Clear module boundaries, naming and documentation so the codebase can be handed off and extended by someone else.
Versioning and an OTA update mechanism designed in from the start, not bolted on after the first recall.
Task architecture, interrupt handling and shared-resource access designed to avoid the bugs that only appear under load.
Firmware developed against the same schematic and pinout the hardware team signs off on, with assumptions written down, not implied.
Firmware built directly on the hardware or structured around an RTOS (FreeRTOS/Zephyr-style task models) depending on what the product needs.
UART, SPI, I2C, CAN and BLE stacks implemented and tested against the devices and gateways they need to talk to.
Update mechanisms and release versioning so fielded devices can be patched without a truck roll.
We map out the module structure, task/interrupt architecture and update strategy before writing driver code.
Drivers, communication stacks and application logic built against the agreed architecture.
Functional and timing behavior verified on the bench against real hardware before field deployment.
Firmware validated under real operating conditions, then handed over with source, tests and update instructions.
Complete firmware source under version control, structured for handover and ongoing maintenance.
Bench and field test reports alongside documented flashing and OTA update instructions.
Yes, we review the existing source, understand what's already working, and take over development from there rather than starting from scratch.
Yes, when it's part of the scope. We design update and versioning support as part of the firmware architecture, not as an afterthought.
The same platforms we support for our Embedded Systems Development service.
Send us your hardware details and requirements, and we'll scope the firmware work.
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