Embedded engineering studio

Cutting-edge embedded solutions for products that ship

Firmware & consulting for ESP32 / nRF52 / STM32 • ultra-low power • BLE/Wi-Fi • CAN • TouchGFX • Windows tooling for production & test.

  • ✓Production-grade firmware with OTA, diagnostics, and verification baked in.
  • ✓Signal processing and power budgets tuned for real-world constraints.
  • ✓Windows tooling that keeps factories moving without vendor lock-in.
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ESP32nRF52STM32 BLEWi-FiCAN AWS IoTTouchGFXOpenCVWinAPI
EU-based (CET) • Production-ready delivery • On-site available
🔋 Ultra-low power
Coin-cell friendly designs and sleep strategies.
📶 Secure BLE/Wi-Fi
Encrypted BLE, OTA patterns, robust connectivity.
🧠 Signal processing
FFT, IMU fusion, thresholding & filtering.
🖥️ Windows tools
Production/diagnostics apps with WinAPI.
  • 5+ yrsembedded delivery
  • 4+products shipped

Case studies

Selected work

We unblock roadmaps, compress schedules, and keep production lines humming for connected devices across industry, consumer, and mobility sectors.

Connected Piggy Bank

ESP32 firmware with AWS connectivity, encrypted BLE, LCD UI.

  • Secure cloud link & OTA-ready architecture
  • LCD interaction & device UX

Working Hours Counter Beacon

nRF52, 1-year CR2032-class design, FFT on magnetometer for RPM, vibration-wake.

  • Signal processing pipeline for RPM from magnetic data
  • Ultra-low power modes & wake-on-vibration

TouchGFX HMI

Complete TouchGFX GUI over CAN/UART to configure lift controller.

  • Dynamic data-driven screens
  • Robust CAN messaging & status

Vision QA Tool

OpenCV app with WinAPI GUI to detect defects on line-camera imagery.

  • Image stitching, border detection, defect flags
  • Multithreaded for throughput

Windows Utilities

Internal tooling for production/test; diagnostics, flashing, and data capture.

  • Lean WinAPI UIs (no bloat)
  • Scriptable flows for operators

Consulting & rescue

Performance, power, bring-up; get unstuck quickly.

  • Discovery → milestones → weekly demos
  • Clear acceptance criteria

Services

What we do

Flexible engagements: embedded pods, firmware audits, architecture spikes, or a turnkey delivery partner.

Embedded firmware

ESP32, nRF52, STM32 • FreeRTOS • OTA • robust drivers • testability.

Connectivity

BLE, Wi-Fi, CAN • secure provisioning • encrypted links • retries/backoff.

Signal processing

FFT, filtering, sensor fusion for IMU/magnetometer workflows.

HMI / TouchGFX

Responsive UIs, diagnostics, and field-friendly flows.

Windows tooling

WinAPI apps for production, flashing, calibration, data export.

Consulting

Bring-up, performance, power budgets, design reviews, certification prep.

Approach

How we de-risk embedded launches

From discovery through certification, we plug into your team to accelerate delivery without adding overhead.

48h Average turnaround for critical fixes
95% Firmware issues closed in the first sprint
3x Typical improvement in power draw after tuning

Discovery & shaping

Map constraints, risks, and interfaces before the first commit. We align milestones with measurable acceptance tests.

Build with telemetry

CI-ready firmware, power profiling, bench automation, and artefacts your team can maintain.

Launch & handover

Structured rollouts, manufacturing-ready tooling, and documentation that survives audits.

Contact

Let's talk about your build

Send a short brief and we’ll reply within one business day with next steps or a slot for a live call.

  • Share hardware context, target markets, and timelines
  • Link any schematics, repos, or test data we should review
  • Highlight desired outcomes, launch dates, and decision makers
  • Response~1 business day (CET)
  • OfficeZagreb, Croatia • Remote & on-site
  • ChannelsInclude your preferred contact method in the message

Process

How we work

1) Intro call

Understand scope, constraints, risks, timeline.

2) Proposal

Milestones, estimates, acceptance criteria, comms cadence.

3) Build & deliver

Weekly demos, measurable progress, clean handover.

About

Embedded expertise, product mindset

M TWELVE is an embedded engineering studio led by an EU-based C++/firmware developer. We design and ship firmware, HMIs, and lean Windows tools that keep production moving.

Toolchain comfort zone: C/C++, FreeRTOS, ESP-IDF, nRF5 SDK, STM32 HAL/LL, Python tooling, GitLab CI.

  • EU-based (Croatia, CET)
  • Security-minded delivery and handover
  • On-site engagement available
  • Response time: within 1 business day