MCU, RTOS, and embedded Linux
Platform architecture, task and process boundaries, timing, memory, concurrency, interfaces, startup, shutdown, and resource constraints.
Sosteco LLC · MCU · RTOS · Embedded Linux
Firmware built for
real device behavior.
Sosteco develops embedded software around the hardware, timing, power, communications, recovery, update, test, and maintenance constraints that determine whether a device remains dependable in the field.
MCU, RTOS & LinuxDrivers & communicationsPower & fault recoveryTesting & lifecycle
Behavior over features
Reliable firmware starts with the operating model.
A device must respond correctly not only on the happy path, but through brownouts, interrupted communications, corrupted data, sensor faults, timing pressure, low-power transitions, updates, and long unattended operation.
We define those states explicitly, integrate against real hardware early, and create observability and tests that support both development and lifecycle maintenance.
Drivers and board bring-up
Peripheral drivers, sensors, converters, storage, buses, interrupts, diagnostics, calibration flows, and close coordination with electronics.
Device communications
Wired and wireless interfaces, protocol behavior, buffering, retry and recovery, provisioning, telemetry, command paths, and interoperability.
Bootloaders and updates
Boot strategy, image validation, secure update paths, rollback and recovery behavior, versioning, configuration, and field diagnostics.
Power and performance optimization
Duty cycles, sleep states, wake sources, current profiling, latency, throughput, memory use, and tradeoffs grounded in measurements.
Testability and maintainability
Modular boundaries, code review, static checks, automated tests where appropriate, hardware-in-the-loop strategy, logging, and reproducible builds.
A maintainable result
Source code with the evidence needed to trust it.
Behavior and interface definition
Operating states, timing, interfaces, error handling, resource budgets, update needs, security boundaries, and critical acceptance criteria.
Integrated implementation
Source code, configuration, platform integration, drivers, communications, and build guidance appropriate to the agreed product scope.
Test assets
Test plans, fixtures or harnesses where in scope, automated checks where valuable, representative hardware tests, and regression guidance.
Debug and validation record
Measurements, logs, issue resolution, boundary-condition results, known limits, and evidence against the agreed acceptance criteria.
Lifecycle handoff
Architecture and interface documentation, versioning and release guidance, update process, diagnostic strategy, and direct knowledge transfer.
Integrated engineering
Firmware decisions connected to the physical product.
Sosteco can coordinate embedded software with PCB design, sensors, radio behavior, device power, field validation, production tests, and post-deployment support instead of treating firmware as a disconnected workstream.
Practical questions
New development, integration, or difficult field behavior.
Can Sosteco work on an existing firmware codebase?
Yes. We can begin with architecture and build review, reproduce the priority problem, map hardware and interface dependencies, improve testability, and define a controlled path for changes.
Do you develop both MCU and embedded Linux software?
Yes. The appropriate platform and scope depend on processing, real-time behavior, interfaces, power, startup, security, maintainability, and production constraints.
Can you optimize battery life?
Yes. We combine current profiling with radio, sensor, processor, sleep-state, wake-source, data-rate, and firmware-scheduling analysis so changes are based on measured energy use.
Do you support firmware after launch?
Yes. Engagements can include release support, diagnostics, defect investigation, update strategy, maintenance, device behavior improvements, and feedback into later hardware revisions.
Make device behavior deliberate