I deliver complete automotive products from embedded firmware and hardware bring-up through mobile/web applications to safety certification. One point of contact, full technical ownership, shipped to production. In the past 7 years, I have shipped production OBD-II firmware for STM32, led two successful UL1998 safety audits, and delivered customer-tested automotive diagnostics applications (Android, iOS, Web). I take full technical ownership of every product I build firmware, apps, cloud, enclosure and I don't stop until it's validated in the customer's hands. What I deliver: End-to-End Automotive Product Development I own the entire product stack. Need a fleet management device with firmware, mobile apps (Android/iOS), a web dashboard, and a mechanical enclosure? I deliver it all. I lead the technical execution across embedded firmware, mobile applications (Flutter, Android native), web platforms (MERN stack), and mechanical/enclosure design coordinating a proven team of specialists under my technical direction. You get one partner who owns the whole product, not five disconnected contractors. OBD-II & Vehicle Diagnostics Firmware I developed a complete ELM327-compliant OBD-II interpreter firmware on STM32F072 from scratch supporting CAN (ISO 15765-4), K-Line (ISO 9141/14230), J1850 VPW, and J1850 PWM. Built on custom hardware, prototyped on evaluation kits, validated with Freematics OBD-II emulator and Saleae logic analyzer, and tested on real vehicles. The product is now in production. Functional Safety & Compliance (UL1998, IEC60730, UL1973, ISO26262) I led two full UL1998 certification programs, Intrinsic Power (EVSE controller) and Lithiumwerks (BMS). I drove the internal safety audit, created all artifacts (FMEA, FTA, safety requirements, architecture, test plans), represented the company during the UL audit, and incorporated auditor feedback. Both programs achieved successful certification. Automotive Diagnostics & Fleet Management Applications Built and shipped multiple OBD-II diagnostics and fleet management apps (Android/iOS), live sensor gauges, DTC scanning, TPMS monitoring, BLE connectivity, shop finders, and web dashboards. Tested by real customers in their vehicles with verified results. I handle the full stack: firmware on the device, mobile app on the phone, and web platform for fleet operators. Hardware Bring-Up & Product Development From schematic review and mechanical enclosure design to board bring-up, firmware porting, protocol validation, and production testing. I prototype early on evaluation kits so the firmware is 70% ready before custom hardware arrives. This saves months of development time. CAN Bus, K-Line, J1850, and Vehicle Protocol Expertise Deep hands-on experience with automotive communication protocols. I write the drivers, validate with logic analyzers, test on emulators, and verify on real vehicles. Whether you need a complete automotive product built end-to-end, OBD-II firmware for your hardware, safety certification for your embedded system, or a fleet management platform with apps and a web dashboard, I am the technical partner you are looking for. I own the product, you own the business.

I am Embedded Software and hardware Enthusiast with over 5;years of experience. My goal is to help people develop their products or transform their idea 💡 into product in the area of Embedded Systems. I provide the following services. ✅ Firmware implementation for MCU (STM32, ESP32, AVR, PIC32, ATSAMD21, nRF52, nRF53, Arduino). ✅ Bare metal software development for MCUs ✅ Software development for single board computers (Raspberry Pi, BeagleBone). ✅ Embedded C, Assembly, C++, Python, JavaScript, Rust and Matlab/Simulink programming ✅ Linux OS,Yocto/BuildRoot , FreeRTOS, ZephyrRTOS software development. ✅ Circuit design, Simulation, PCB layout, Routing, with KiCad, Altium designer, OrCad, up to 10 layers. ✅ BoM and Manufacturing files for PCB ordering If your are looking for a motivated person your are with the right one so feel free to discuss with about your projects.

Experience in developing and testing embedded applications for Linux platforms Skilled in developing embedded software using C & JS programming language Skilled in software debugging and working on ARM architecture platform Basic knowledge of any communication : HTTP/HTTPS, SSH, UART, CAN, ...

Embedded Systems & PCB Design Engineer ESP32 | STM32 | Nordic nRF | LoRaWAN | Custom PCB Design | Cloud-Connected Devices I design embedded systems that ship not just prototypes that demo well. From custom BLE wearables and ESP32 LoRa sensor networks to industrial STM32 control boards with safety-rated relay logic, I take products the full distance: hardware selection, custom PCB design, production-grade firmware, robust communication stacks, and cloud integration. My work is built on clean, scalable architecture, deterministic system behavior, and efficient resource use. The result is hardware and firmware that stay stable, reliable, and maintainable after deployment, engineered to survive the field, not just the bench. Core Technical Expertise Embedded Firmware Development Microcontrollers: ESP32, ESP8266, STM32, Nordic nRF52 Series, ATmega/AVR Frameworks: Bare-metal and framework-based (ESP-IDF, STM32Cube, Arduino) Optimization: Efficient C/C++ with careful memory management and deterministic timing Peripherals: GPIO, PWM, ADC, UART, SPI, I2C, I2S, DMA Sensor Interfacing: Precision acquisition from industrial and consumer-grade sensors PCB Design & Hardware Engineering Schematic & Layout: Custom PCBs for STM32 and ESP32 controllers, LoRa nodes, BLE wearables, and industrial control boards Industrial Hardware: Relay and SSR control, safety architecture, protected inputs, power switching, and fail-safe design Design for Manufacturing: Power regulation, signal integrity, sensor integration, and production-ready output (Gerbers, BOM, CPL) Hardware Debugging: Logic analyzers, oscilloscopes, and JTAG/SWD bring-up IoT Connectivity & Communication LoRa & LoRaWAN: Long-range, low-power networks for agricultural, industrial, and smart-city use Wireless: Wi-Fi and BLE (ESP32/nRF52), including mesh and point-to-point Wired: RS-485/Modbus and CAN Bus for industrial environments Cloud Protocols: MQTT, HTTP/REST, WebSocket, CoAP Integrations: Firebase, AWS IoT, TTN, and custom backend APIs Device Management & Power OTA: Robust over-the-air firmware updates for ESP32 and STM32 Remote Management: Configuration, diagnostics, and fault-tolerant self-healing logic Power Management: Deep-sleep optimization for battery-operated remote nodes Embedded Web: On-device dashboards and captive-portal provisioning Tools & Technologies Languages: C, C++, MicroPython Communication: LoRaWAN, BLE, Wi-Fi, RS-485/Modbus, CAN Bus IDEs & Tools: PlatformIO, VS Code, STM32CubeIDE, ESP-IDF, Arduino IDE, Keil Cloud/IoT: Firebase, Blynk, ThingsBoard, Helium, TTN PCB Design: KiCad, EasyEDA How I Can Help You End-to-End Product Development: From concept to a custom PCB with production-grade firmware Industrial Control & Sensing: Safety-aware control boards, relay and SSR logic, RS-485 systems LoRaWAN & Long-Range Networks: Sensor networks for remote and large-area deployments Firmware Refactoring: Debugging and optimizing existing code for stability and lower power Cloud Integration: Secure, real-time data logging and remote control What You Can Expect Clean, modular, well-documented code that's easy to maintain Reliable behavior under network drops and hardware resets Regular progress updates and clear technical documentation Practical engineering focused on long-term reliability over quick fixes Availability Open to short-term tasks (debugging, sensor integration, driver development), long-term IoT projects (full hardware-to-cloud lifecycle), and consultancy (hardware selection and system architecture). Quick response guaranteed reach out with your concept or requirements.

I help clients transform ideas into production-ready embedded systems — from hardware design and PCB development to firmware, embedded Linux, and custom software solutions. I work with startups, small businesses, and industrial companies who need an engineer that can own both hardware and software, so they don't have to coordinate multiple specialists or chase someone who disappears mid-project. With professional industry experience in embedded development — not just hobby projects — I specialize in building reliable, scalable solutions for IoT, industrial automation, robotics, and custom electronic products. Every deliverable I produce is built to survive real operating conditions, not just pass a bench test. Core Expertise: Embedded firmware development in C/C++ — bare-metal and RTOS-based (FreeRTOS, Zephyr) ESP32, STM32, ARM Cortex-M microcontrollers Embedded Linux development with Yocto and Buildroot Linux kernel customization and device driver development BSP development and Linux system integration Custom PCB design — KiCad, Eagle, Altium Designer Schematic design and multilayer PCB layout Communication protocols — UART, SPI, I2C, CAN, BLE, Wi-Fi, MQTT, Ethernet Sensor and actuator integration Production-ready hardware and software prototyping What I Deliver: Complete embedded systems from concept to deployment Embedded Linux platforms built for production Yocto and Buildroot BSP development Linux kernel modules and device drivers PCB schematics and layouts ready for manufacturing Firmware development and optimization IoT product development end to end System debugging and performance optimization I provide full-cycle embedded engineering support — from architecture and prototyping through firmware, hardware, and production deployment — with clean code, thorough documentation, and reliable communication throughout. If you need an experienced engineer who can handle both hardware and software, including low-level Linux systems, production firmware, and manufacturable electronics — let's talk.

I'm Mieszko Mieruński, I have 13+ years of experience with Embedded Systems My main specialization is Zephyr RTOS, which I work with since 2018, when I was working at Nordic Semiconductor writing drivers for nRF91 and nRF53 chips. I have vast experience with nRF chips and tackle hardest issues with RF, connectivity and power optimization. I also have experience working with other technologies listed below: 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 & 𝗣𝗿𝗼𝘁𝗼𝗰𝗼𝗹𝘀 • Connectivity: LTE-M, NB-IoT, LoRaWAN, Bluetooth / BLE, Wi-Fi (including HaLow), Thread • Application Protocols: Matter, MQTT, LwM2M, CoAP • Integrated Systems: GPS/GNSS, Asset Tracking, Sensor Fusion 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀 & 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 • Zephyr RTOS (Official Ecosystem Vendor & Technical Contributor) • FreeRTOS • Embedded C/C++ • Rust (for memory-safe, mission-critical systems) 𝗠𝗖𝗨 𝗙𝗮𝗺𝗶𝗹𝗶𝗲𝘀 • Nordic Semiconductor (nRF52, nRF54, nRF91 series) • Espressif (ESP32, ESP32-S3, ESP32-P4) • STMicroelectronics (STM32H7 and others) 𝗩𝗲𝗿𝘁𝗶𝗰𝗮𝗹 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻𝘀 • Industrial IoT (IIoT) & Factory Automation • Smart Agriculture • Connected Healthcare & MedTech • Smart Home & Building Automation • Emergency & Safety Devices • Asset Tracking & Logistics

I specialise in challenging go-to-market projects, designing and developing devices, circuits and software where the assumptions are yet to be tested and specifications are early phase. Over 20 years I have delivered deep tech programmes for the MOD, NHS and delivered into clients including Abbott, J&J, PALL, and Fujifilm. My training in sensors, electronic circuit design, biochemistry and embedded AI edge systems will guide rapid progress. My PhD focused on machine learning of receptor structures for biosensing applications, combining electronics design, computational modelling of biological systems, and sensor development. Clients often arrive with an early-phase concept, a market need, and a scope that is unclear. My first job is to identify which assumptions actually matter, design the experiments that test them, and produce a proof of concept with real evidence behind it. For teams past that point, I take that foundation through full hardware development to a compliant, market-ready device with all the certificates of conformity. I build first prototypes in-house using my own prototyping equipment, without the cost or lead times of an external build house. I design and review electronic circuits and schematics, lay out PCBs in Altium Designer and KiCad, develop embedded firmware in C and C++, design and prototype wearables from concept through to enclosure in SolidWorks, and prepare the regulatory evidence required for CE marking, UKCA, and EU MDR submissions.

Embedded Systems Engineer | PCB Designer | IoT & AI Integration Are you looking for an expert who can bring your embedded system idea to life with precision, efficiency, and reliability? Whether you need custom PCB design, microcontroller programming, or AI/ML integration into your embedded systems I’m here to solve your problem and deliver the results you need. With hands-on experience in designing high-performance hardware, developing intelligent firmware, and integrating IoT and AI capabilities, I specialize in providing solutions that work. I understand that every project has its unique challenges, and I take a tailored, problem-solving approach to ensure your goals are met on time, on budget, and with the quality you expect. 🔹 Key Skills: ✔ PCB Design & Prototyping – Altium, KiCad, Proteus ✔ Embedded Systems Development – STM32, ESP32, Tiny85, Raspberry Pi ✔ AI & ML for Embedded Systems – Neural networks, k-NN, automation ✔ IoT Device Development – Web integration (Flask, Django), cloud connectivity ✔ Linux & SSH Configuration – Remote access, automation, scripting 🔹 Highlighted Projects: ✅ Automated Parking System – Developed a smart parking solution with ultrasonic sensors, lane tracking, and automated steering, addressing real-time decision-making challenges. ✅ Air Freshener System – Created a motion-activated air freshener with ATtiny85 & PIR sensors, solving the problem of automatic air freshening in public spaces. ✅ Raspberry Pi SSH Connection – Established remote access for easy system monitoring and control, ensuring efficient development and debugging. ✅ Neural Network for Handwriting Recognition – Developed an efficient, real-time neural network for digit prediction, delivering both training efficiency and fast predictions. ✅ Movie Recommendation System – Built a machine learning model using k-NN and one-hot encoding, providing personalized movie recommendations that improve user experience. No matter the challenge, I’m committed to getting the job done right. With my expertise in both hardware and software, I can help you tackle complex problems and ensure your embedded system works seamlessly.

Hi! I'm a computer engineer with a BS in Aero Eng from the University of Michigan. In addition to my aerospace background, I offer a strong background in software engineering and electrical engineering. My most recent experiences include embedded systems programming (CMSIS/STM32 & AVR), FPGAs, and radar data processing in Python with a focus in SAR techniques.

More than 7-years experience: - design of embedded system for digital sensors and GSM/GPS monitoring system; - writing firmware in C and Assembler; - writing special software for device testing and configuration; - participating in writing specifications for new product development. Skills: 1. Platforms: PIC12/16/18, AVR, C8051F3xx, MSP430, STM32, Nordic 2. Interfaces: UART, SPI, I2C, 1-Wire, RS-232/RS-485, USB, CAN. 3. Operation system: FreeRTOS 4. Programming: C, Assembler, Python 5. Tools: IAR, VCS, Altium Designer, Matlab