EMBEDDED SYSTEMS DEVELOPMENT
Embedded software for dependable device control
Firmware development for ESP32, STM32, Nordic nRF and other microcontrollers, including peripheral integration, diagnostics, Wi‑Fi, Bluetooth, LTE and other communication interfaces.

Hardware and software
Firmware is designed around the real device, its states and constraints
Embedded software is directly connected to the electronics architecture, power modes, sensors, actuators and communication modules. Software decisions are therefore evaluated together with the schematic, PCB and intended use case.
The scope can cover the architecture of a new device, integration of an individual module or diagnosis of an existing system. Functions are developed in stages and checked on the target hardware.
The objective is not merely code that compiles, but an embedded system that can be controlled, diagnosed and handed over.

Capabilities
What embedded-systems development covers
The scope is defined by the hardware platform, communication needs, state logic and verification criteria.
Firmware architecture
Module responsibilities, system states, data flows, error handling and a maintainable project structure.
Microcontroller peripherals
Integration of hardware peripherals, timers, memory, inputs and outputs according to the board schematic.
Sensors and actuators
Data acquisition, state processing, control algorithms and controlled output behaviour.
Wireless connectivity
Wi‑Fi, Bluetooth, Nordic nRF and LTE-module integration according to the device requirements.
Bootloaders and updates
Software start-up and update mechanisms when required by the product architecture.
Diagnostics and debugging
Event logging, fault states and systematic isolation of hardware and software problems.
When to get in touch
Support for new and existing devices
A new microcontroller projectYou need a software architecture and implementation of controller functions.
A new communication moduleYou need to integrate Wi‑Fi, Bluetooth, LTE or another communication path.
An unstable prototypeYou need hardware and software issues separated and their root cause identified.
Extension of existing firmwareYou need new functions, diagnostics or interfaces in an existing system.
Workflow
From interface definition to system integration
Software is developed in short, verifiable stages so that problems are identified as early as possible.
Platform and requirementsAlign the microcontroller, schematic, peripherals, states, communications and success criteria.
ArchitectureDefine modules, interfaces, data flows, error handling and the update strategy.
ImplementationDevelop functions in stages and verify them on the target hardware.
Integration and testingCheck critical scenarios, diagnostics, communications and handover information.
Project outcome
What you receive
The agreed editable sources and information needed for continued product maintenance are handed over.
Firmware source codeSoftware modules and project configuration within the agreed scope.
Hardware-interface descriptionsThe peripherals, signals, communications and important integration assumptions.
Build and programming informationThe agreed procedure for preparing, building and programming the project.
Test and diagnostic notesVerified scenarios, known constraints and fault-analysis information.
System context
Firmware is part of the complete electronic system


Frequently asked questions
Before starting a firmware project
Which microcontrollers do you work with?
Experience includes ESP32, STM32, Nordic nRF and other microcontroller platforms. The appropriate platform is evaluated for each project.
Can you integrate wireless connectivity?
Yes. Wi‑Fi, Bluetooth, LTE or another communication solution can be integrated according to system needs.
Can you take over existing firmware?
Yes, when the existing source code, hardware platform, documentation and known problems can be assessed.
Do you hand over the source code?
The code, configuration and documentation included in the handover are agreed before work begins.
Need firmware for a new or existing device?
Send the hardware-platform information, schematic or a short functional description. TavoTech will assess the integration scope and propose the next step.