Hire the best freelance Firmware Development expert designers for your company

18+ years of experience in electronic design. 100+ major design projects delivered. 200+ happy clients served. Whatever your electronic design needs are, reach out for a quick chat, you will not regre... Read more

18+ years of experience in electronic design. 100+ major design projects delivered. 200+ happy clients served. Whatever your electronic design needs are, reach out for a quick chat, you will not regret it! What to expect: ✅Top quality design that not only meets and exceeds your requirements but can also handle those unexpected conditions that make quality products stand out from the rest. ✅Rigorous design test and measurement that leaves nothing unchecked, keeping in mind not only your interests but also those of your end customers. ✅A design that is optimized and ready for manufacturing with parts readily available. ✅Exhaustive documentation and support so you can make best use of all deliverables. ✅A flexible service that can take care of all phases in the design and prototyping process or just those parts that you prefer. ✅Long-term availability for changes, revisions, and support. ✅Above all, an honest and friendly collaboration that you can trust. I invite you to reach out to discuss your project's unique needs. Regardless of your technical background, I am here to transform your product idea into a tangible reality, employing the most efficient and cutting-edge technology. My services extend beyond design, offering assistance in defining complete project requirements, recommending suitable technology, and guiding your product to production. I can also connect you with reliable suppliers and provide unwavering technical support throughout the entire process. As a full-time freelance engineer, having worked with clients from all over the world in very diverse applications, I’ve been able to gain a broad experience in electronic design. The designs I’ve produced over the years range from the simplest of designs to very complex high-density designs at the cutting edge of technology. I have gained experience with a variety of microcontrollers, processors, sensors, interfaces, protocols, and design architectures. I’ve also been able to utilize a variety to PCB technologies ranging from multilayer rigid, HDI, flexible, rigid-flex, metal-core, as well as exotic materials such as stretchable PCB. Throughout the years I’ve also invested significantly in a spacious lab and equipment for both prototyping (including pick-and-place, reflow oven and advanced JBC soldering equipment) as well as professional test and measurement equipment (including oscilloscopes, spectrum analyzers, VNA, bench meters, electronic loads, waveform generators, ECG simulator, thermographic imaging, and data loggers), all from reputable brands (Keysight, Teledyne-Lecroy, FLIR, Fluke, Tektronix, Pico,…). My vision is to produce top quality designs with a ‘whatever it takes’ attitude and am willing to invest effort and financially in ensuring that I am well equipped to do so. Some of the specific experiences include: Software tools: Altium Designer (my primary EDA), KiCad, Eagle, Proteus; SolidWorks; Ansys, Keysight-ADS, COMSOL; VS Code, Visual Studio, PyCharm, IntelliJ; Keil MDK Arm, GCC, IAR, CodeComposer, Microchip Studio; Quartus Prime, Xilinx ISE; Programming languages: Embedded C, C++, C#, Python, Rust, Java, VHDL, Bash scripts, PHP, javascript… Microcontrollers/SoC: STM32 (often preferred), ATSAM, STM8, nRF5x (often preferred for BLE applications), EPS32, CH32 (RISCV), C2000, CC2642, CC13xx, PIC16/18, AVR, MPS430, RP2040, i.MX, A20/50, RK35xx, MAX78000, … Protocols/Buses: RS485/422, USB, UART, SPI, I2C, CAN, LVDS, DDR; Modbus, NMEA2000, MQTT, … Common design features: - BLE / Wi-Fi with custom PCB trace antenna, fully simulated and tuned on prototypes. - USB charge circuit for Li-Ion battery, including fast charging. - Battery protection circuits and cell balancing. - PoE source/device/injector designs with necessary protocol handshakes. - ARM embedded processor design running embedded Linux system. - RTD measurement circuits, 3/4 wire, 24 bit, PGA and filtering. - ECG, EOG, EEG monitoring wearable designs. - IMU motion tracking with sensor fusion and quaternion streaming. - GNSS location tracking, including high precision RTK modes. - Audio capture, filtering, processing, and amplification. - DC/DC converters in various topologies including buck, boost, buck-boost, SEPIC, CUK, H-Bridge, cascaded, multi-phase. AC/DC converters (flyback, feed-forward, …). DC/AC inverters, BLDC control… - LED driving with attention to color rendering and thermal management. - Solar MPPT controller. - UHF long range wireless designs, LoRa, Sigfox. Cellular interfaces 4G, LTE, NBIoT, LTEM. My commitment to excellence, innovation, and collaboration has been the cornerstone of my career. I look forward to the opportunity to bring your vision to life, leveraging my extensive skill set and passion for electronic design. Feel free to contact me to embark on a successful journey together.

Thank you for visiting my profile. My name is Marko Aleksic, a dedicated electronic hardware and firmware engineer specializing in creating innovative and high-quality solutions for electronic product... Read more

Thank you for visiting my profile. My name is Marko Aleksic, a dedicated electronic hardware and firmware engineer specializing in creating innovative and high-quality solutions for electronic product development. I am passionate about transforming ideas into reality through meticulous design and development -Core Competencies: -PCB Design & Development: Expert in designing reliable, high-performance printed circuit boards (PCBs). Specialization in power supply circuits (DC-DC, AC-DC conversions) and multilayer designs for embedded systems. Proven track record in developing efficient LED driver circuits and RF PCB layouts. -Firmware Development: Extensive experience programming microcontrollers including STM32, DSPIC, ESP32 and ESP8266. Mastery of communication protocols such as UART, SPI, Ethernet, USB, CAN, and MODBUS for seamless integration. Proficient in implementing wireless technologies including Wi-Fi, Bluetooth, and ZigBee. -RF Design & Analysis: Strong capabilities in RF circuit design, antenna optimization, and simulation for applications like WiFi, Bluetooth, and RFID. Expertise in developing RF filters, splitters, transceivers, and power amplifiers tailored to specific application needs. I am committed to delivering cost-effective, high-quality solutions without compromising performance or deadlines. I welcome the opportunity to connect and discuss how I can contribute to your projects.

With 25 years of experience, I design commercial and industrial products taking care of all the requirements and features of the design, prototyping and manufacturing. Italian living in Spain. My dai... Read more

With 25 years of experience, I design commercial and industrial products taking care of all the requirements and features of the design, prototyping and manufacturing. Italian living in Spain. My daily job is investigation and development of new technologies. You can benefit from my expertise if you are in need of innovation or you have an idea that nobody can't make it real. I provide better technologies, better ideas and better problems solving. I am a skilled electronic engineer, multi-language developer, inventor, circuit designer. I have a background of Linux/BSD servers admin and networks admin. My work ranges from developing space-grade electronic prototypes, deploying and managing large-scale data networks of IoT sensors to autonomous robotics design with AI. I love to get involved in projects with different technologies. I am constantly updated on new technologies and electronic trends. I am a good advisor on the best technologies you should integrate into your next project. I have a company about IoT sensors, custom circuit designs, autonomous robotics, and web API for data gathering and visualization through web services. One of my most relevant projects was the design of the avionics for a space satellite. During the development, I was able to integrate the top-quality components and adopt the most refined engineering methodologies. I am an outstanding project manager with excellent orders logistic, time scheduling, and employee management. I know how to design electronic circuits and how to optimize the PCB layouts for to pass compliance tests for the emission certification as per CE, FCC, UL regulations. My experience includes: -nRF52/53/54 bluetooth BLE chips from Nordic -nRF9161/51 LTE SoC with CAT-M1 and NB-IoT -ARM Cortex-M33 specialist -ultra low power IoT designs with LTE, LoRa, Bluetooth and 5uA during sleeping -IoT designs with sensors of any type -IMU fusion and motion sensors -Beaglebone Black, Raspberry PI, ODROID -Arduino, Teensy3.2+3.6+4.x, Spresense -design and firmware with NXP, STM32, Nordic, TI, Silabs ARM Cortex-M MCUs -Multilayer PCB layout designs -XBEE, Bluetooth BLE, WIFI, LTE -LoRa and LoRaWAN transceivers design with Semtech RF chips -Iridium sat embedded modems -Autonomous robots, ocean and ground -Wearable devices -Tracking devices with sensor -Solar panels design -Lithium battery rechargers with safety -Industrial heavy duty protocols and power electronics -Encoders and motor drivers -Automotive electronics design -Aerospace electronics, RF and avionics design -Machine learning on MCUs -CAN bus, RS485, 5-20mA protocols -Audio MIDI instruments design -DSP algorithms -Heterogeneous multicore architectures -JTAG, SWD, GDB, openocd, Segger J-Link -Jetson platforms from NVIDIA -Allied Vision cameras -CAD with FEM analysis -3D printed enclosures for electronics Software and firmware programming: -Zephyr RTOS on Nordic RF SOCs -Nuttx RTOS -custom embedded Linux OS with Yocto project -Linux OS (Raspberry PI, ODROID, ARM based) and servers: Ubuntu, Debian and ArchLinux -FreeBSD, NetBSD on embedded boards and servers -AI, machine learning, TinyML specialist -computer vision on NVIDIA Jetson boards. -PX4, MAVLINK, ROS and GAZEBO simulator -Python, C, C++, LUA, Perl -REST API via HTTPS and authentication -MATLAB, Octave, NumPy I can create custom RF circuits and antennas on PCB. I can run the required math and to provide the best impedance matching network. I can test the final RF circuit with my Vector Network Analyzer (VNA). I am specialist of IoT/LoRa/LTE frequencies. I do microelectronics SMT soldering and prototyping in my lab. I place components using a professional microscope. I mount components with dimensions down to 0402 or BGA type. I have good contacts in the industry for PCBs fabrication and for the massive production in different parts of the world. I do machine learning (AI) in microcontrollers installing into the firmware the inferences. I do training in the cloud. I am a specialist of TinyML on ARM Cortex-M33 MCUs. I am honored to be a returning, invited speaker for the BSD foundation, where I discuss BSD operative systems worldwide at annual conventions in Europe and North America. I have a private git server to manage all the files of my customers as remote accessible repositories so they can track the status on a daily basis. My monthly flat rate is 8000 Euro. I begin to work with an initial upfront payment, fully released of about the 30% of the total value of the project. I prefer to work at long term projects to take care of all the features and all the design process. I am also available for preliminary feasibility studies of new products with a final PDF report. I am the owner of a legal registered business in Spain to pay taxes and to provide all the engineering services. All the PDF invoices I send are declared and legal. Local EU regulations impose to send the PDF invoice to my customers to document the funds received.

Hi, I’m AMINA, a Certified Professional Web Designer and Developer with 10 years of experience. I lead a dedicated agency that creates everything from stunning blogs to dynamic e-commerce stores on pl... Read more

Hi, I’m AMINA, a Certified Professional Web Designer and Developer with 10 years of experience. I lead a dedicated agency that creates everything from stunning blogs to dynamic e-commerce stores on platforms like WordPress, Wix, Squarespace, and Shopify. My designs are modern, user-friendly, fully responsive, and easy to maintain. What sets me apart? I provide step-by-step guidance, clear communication, and expert advice to ensure your vision becomes reality. If you’re ready for a new website or a redesign, let’s connect and make it happen!

Highly experienced in PCB design and firmware development for embedded electronics around STM32 for B2B

Highly experienced in PCB design and firmware development for embedded electronics around STM32 for B2B

Electronics engineer with over 6 years of experience in PCB design and Electronics hardware and firmware development

Electronics engineer with over 6 years of experience in PCB design and Electronics hardware and firmware development

Experienced electrical designer specialized in: -Rapid Prototyping -Firmware Development. -ECAD Schematic Capture. -Multi-Layer PCB Design. -LT Spice Simulation

Experienced electrical designer specialized in: -Rapid Prototyping -Firmware Development. -ECAD Schematic Capture. -Multi-Layer PCB Design. -LT Spice Simulation

I have a proven track record of designing innovative solutions to complex problems. I have extensive experience in circuit design, firmware development, and PCB layout, and I am always eager to e... Read more

I have a proven track record of designing innovative solutions to complex problems. I have extensive experience in circuit design, firmware development, and PCB layout, and I am always eager to explore new technologies and approaches to improve product performance and efficiency

Mechatronics Engineer | Electronics • Embedded Systems • Power Electronics • Control & Optimization • 3D Design I have strong expertise in electronics, control & optimization, and embedded software d... Read more

Mechatronics Engineer | Electronics • Embedded Systems • Power Electronics • Control & Optimization • 3D Design I have strong expertise in electronics, control & optimization, and embedded software development. My passion is transforming complex ideas into functional, reliable, and innovative systems. From PCB design and firmware development to 3D mechanical modeling and complete system integration, I can deliver end-to-end solutions. 🚀 Areas of Experience: Custom CNC hardware and firmware development High-power motor driver design with advanced protection features EEG-based medical device prototyping and testing Scalable Battery Management Systems (BMS) for large LiFePO4 packs 🔧 What sets me apart: Combining creativity with engineering discipline Not just designing, but delivering tested and ready-to-use solutions Strong focus on on-time delivery and high-quality results Whether you need a prototype, CAD design, or a complete electronic-mechanical system, I am here to bring your vision to life.

Self-contained developer capable of prototype-to-production delivery I offer an all-in-one engineering skillset covering the full hardware and firmware development cycle. I can design the schematic, i... Read more

Self-contained developer capable of prototype-to-production delivery I offer an all-in-one engineering skillset covering the full hardware and firmware development cycle. I can design the schematic, integrate RF and antenna systems, high-speed system, create optimized PCB layouts, and implement embedded firmware for chips such as the MCU, FPGA, DSP. This integrated approach ensures faster iteration, consistent system performance, and reduced coordination overhead between hardware and software teams.

Our team offers services on the full range of the development: - requirement engineering - hardware design - hardware production (PCB, PCBA) - firmware development - PC-side/web access to th... Read more

Our team offers services on the full range of the development: - requirement engineering - hardware design - hardware production (PCB, PCBA) - firmware development - PC-side/web access to the device Our team has experience with: - microcontrollers (8- and 32-bits) - microprocessors running embedded Linux - building from COTS modules or building custom PCBs - programming bare metal firmware or embedded Linux - integrating wireless or wired networks - special purpose file systems - interfacing sensors - networking (from Layer 3 to custom application protocols)

Embedded systems expert with a focus on hardware and firmware development. My experience covers areas such as: - Turnkey development of embedded hardware and software (you come with an idea and I del... Read more

Embedded systems expert with a focus on hardware and firmware development. My experience covers areas such as: - Turnkey development of embedded hardware and software (you come with an idea and I deliver final production-ready product.) - Microcontrollers and their firmware (ARM, STM32, MSP430, Atmel, PIC32.) - Any communication protocol (Wi-Fi, Bluetooth, LoRaWan and more.) - PCB designs using any tools you want. - Product design to help your idea come true. - Sensors, IoT, and specific designs to run ML models. - Reverse engineering and optimization

I’m a highly skilled PCB Designer & Electronic Engineer with years of experience in circuit design, embedded systems, and firmware development. I turn your concepts into production-ready, reliable, an... Read more

I’m a highly skilled PCB Designer & Electronic Engineer with years of experience in circuit design, embedded systems, and firmware development. I turn your concepts into production-ready, reliable, and efficient electronic solutions — from the first schematic to the final tested prototype. 💡 My Expertise Includes: PCB Design & Layout (Single-layer, Multi-layer, Rigid, Flexible, High-speed) Schematic Design & Circuit Simulation Embedded Systems Development (ESP32, STM32, Arduino, Raspberry Pi, AVR, PIC, ARM) IoT Solutions & Wireless Communication (Wi-Fi, Bluetooth, LoRa, Zigbee, GSM) Firmware Development (C, C++, MicroPython, Arduino IDE, PlatformIO) Prototyping & Testing PCB Manufacturing Files (Gerber, BOM, Pick-and-Place) Sensor Integration (Temperature, Motion, GPS, Pressure, etc.) Power Electronics & Battery Management Systems Analog & Digital Circuit Design Product Development for Mass Production 🛠 Tools & Software I Use: KiCad | Altium Designer | EasyEDA | Proteus | Eagle | OrCAD | SolidWorks (for enclosures) 🌍 Why Work With Me? ✔ Industry-standard quality ✔ Fast and reliable delivery ✔ Clear communication & regular updates ✔ Tailored designs that meet your exact requirements ✔ Post-delivery support and revisions Whether you need a small custom PCB, a complete IoT product, or complex industrial electronics, I can bring your project to life on time and within budget. Let’s design something amazing together!

Voler Systems is one of the leading companies in new electronic product design, embedded system design, medical device design, wearable device design, and IoT design. We are focused on electronics, fi... Read more

Voler Systems is one of the leading companies in new electronic product design, embedded system design, medical device design, wearable device design, and IoT design. We are focused on electronics, firmware, and software. We have close partners who are equally capable of industrial design, mechanical design, optical design, transfer to manufacturing, manufacturing, and logistics. With these partners, we can provide a complete product design from end to end. Voler has been in business for four decades and is a leading custom product design consulting company providing high-quality electrical engineering and firmware development. Our Promise - Voler Systems delivers quality products, on time, on budget with low risk.

Founded in 2013 Integra Sources has already completed more than 100 projects making happy more than 40 clients. Our customers have raised more than $1 000,000 on Kickstarter in total. We offer full... Read more

Founded in 2013 Integra Sources has already completed more than 100 projects making happy more than 40 clients. Our customers have raised more than $1 000,000 on Kickstarter in total. We offer full-cycle hardware and software development services delivering the best engineering solutions for you. ⭐Our core services ✔ Embedded Hardware Development (PCB design * FPGA design * Preparing for manufacturing * Certification * Prototyping) ✔ Embedded Software Development (Firmware development * Board support package development * Prototyping with SBC * RTOS) ✔ IoT Solutions (AWS IoT * Azure IoT * Industrial IoT * Industry 4.0 * M2M * Predictive maintenance * Digital transformation) ✔ Kernel and Driver Development (Windows * Linux * macOS * Android) ✔ Custom Software Development (Cross-platform software development * Native desktop software * System software) What else we can do ✔ Computer Vision Development (Image and video processing * Face recognition * Edge computing * Object tracking) ✔ Machine Learning and Artificial Intelligence (Recommender systems * AI-based applications * Neural networks * Data analytics * OCR) ✔ Robotics (Flying drones * Robots on wheels * Autonomous movement * Applications for Robot Operating Systems (ROS) ✔ Mobile Application Development (iOS application development * Android application development * Mobile apps for IoT * Cross-platform app development * Testing * App store submission) We create products for a number of industries including healthcare, logistics, asset tracking, education, industrial automation, consumer electronics, entertainment, and other fields. Innovative problem-solving skills, in-depth expertise and enthusiasm toward work make us a strong partner in the development services we provide. We are happy to work on your projects solving challenging tasks and getting excellent results📈

Welcome to my profile. Following are my key expertise: 1. Over 10 years of experience in electronics circuit design, PCB design, Layout specializing in analog, digital and mixed signal systems. Specia... Read more

Welcome to my profile. Following are my key expertise: 1. Over 10 years of experience in electronics circuit design, PCB design, Layout specializing in analog, digital and mixed signal systems. Special Mastery in ALTIUM. Executed more than 500 projects 2. Proficient in using industry-standard design tools such as Altium Designer, EAGLE, KICAD, EASYEDA and PROTEUS, ensuring accurate and efficient circuit development. 3. IPC Certified Symbols and footprints Creation, High Speed PCB Design upto 5GHz 4. Multilayer PCB Design experience upto 32 Layers, Impedance Control, Length Matching, Antenna Tuning, Blind Vias, Buried Vias, Through Hole Vias 5. DFX(Design for Excellence) - DFA, DFM and DFT. First Time Right PCB - 98% 6. Compact PCB Design, Signal Integrity, Power Integrity, Single Sided, Double sided placement 7. Design Verification through Design Checklists ensuring robust, reliable and quality design 8. Applications- IOT, Consumer, Medical, Industrial, Defense etc 9. Microcontroller Interfacing - STM32, STM8S, ESP32, ESP8266, NXP, TI chipsets etc 10. Wireless Products, Battery Operated, Low Power, Low cost 11. Design Optimization - Could optimize design of any product by at least 25% 12. Design for Quality, Design Review 13. PCB Prototyping, Contract Manufacturing 14. Firmware Development - ARDUINO, C, C++ etc 15. Enclosure Design, 3D Printing, Sheet Metal, 16. Production Support 17. EMI EMC Compliant Design - RE, EMHF, Surge, EFT, Burst, Impulse, 35KV 18. Standards Experience - UL, CISPER, CE, Please contact me if you would like to develop a robust and reliable product If you are looking to bring your idea to life, contact me :)

Looking for a versatile engineer with a strong background in PCB design, 3D modeling, MATLAB, AutoCAD, and more? You've come to the right place. With extensive experience in electronics engineering an... Read more

Looking for a versatile engineer with a strong background in PCB design, 3D modeling, MATLAB, AutoCAD, and more? You've come to the right place. With extensive experience in electronics engineering and a keen eye for detail, I specialize in delivering innovative solutions that bring your ideas to life. PCB Design Expertise: Whether you're developing a simple circuit or a complex multilayer board, I excel in designing reliable and efficient PCBs tailored to your project needs. I focus on optimizing layouts for performance, manufacturability, and cost-effectiveness to ensure your product's success. 3D Modeling Skills: Using industry-standard software, I create precise 3D models that can be used for prototyping, visualization, and manufacturing. From conceptual designs to detailed models, my goal is to help you see your product come to life with clarity and accuracy. MATLAB Proficiency: My MATLAB skills allow me to tackle a wide range of technical challenges, from algorithm development and data analysis to complex simulations. If you're looking for someone who can turn your data into actionable insights, I’m ready to deliver. AutoCAD Mastery: With a deep understanding of AutoCAD, I can create detailed drawings, schematics, and technical plans that meet industry standards. I provide clear and accurate designs that are easy to interpret, ensuring seamless project execution. Beyond these core skills, I also offer services in firmware development, electronics consulting, and power supply design, bringing a comprehensive approach to each project. My process involves close collaboration, where I listen to your needs, offer strategic insights, and deliver results that exceed expectations.

-----: About Us – NextGen IoT Lab:----- We are a multidisciplinary engineering and technology development team with a strong foundation in mechanical design, industrial CAD modeling, and IoT soluti... Read more

-----: About Us – NextGen IoT Lab:----- We are a multidisciplinary engineering and technology development team with a strong foundation in mechanical design, industrial CAD modeling, and IoT solutions. With nearly a decade of hands-on experience in mechanical and industrial design, combined with over 12 years of expertise in IoT and software development, we bring together a rare blend of skills that enable us to deliver end-to-end product design and development solutions. Mechanical Design Expertise: Our team has extensive experience in 3D modeling and industrial CAD design, leveraging advanced tools such as AutoCAD, Fusion 360, SolidWorks, and other CAD software. From concept to production, we create high-precision, manufacturing-ready designs tailored to client specifications. Our in-depth understanding of manufacturing design principles ensures that each model is both functional and optimized for real-world applications. IoT and Electronics Development: Over the years, we have successfully executed more than 250 projects, ranging from basic PCB designs to complex IoT and embedded systems. We specialize in: Electronics & PCB Design: Circuit design, PCB development, amplifiers, filters, analog/digital electronics. Embedded Systems & Firmware: Microcontroller-based solutions, Arduino, ESP32, LoRaWAN devices, and custom firmware development. Connectivity & Protocols: Wi-Fi, Bluetooth, BLE, RF, High-Speed RF (2.4 GHz), LoRa, LoRaWAN, TTN, Chirpstack, Node-RED, MQTT, HTTP, and webserver integration. Software Development Capabilities: Our proficiency extends beyond hardware into software engineering, enabling us to design and develop scalable applications, control systems, and dashboards. We are skilled in a wide range of programming languages and frameworks, including Python, C++, React, Node.js, Angular, and PHP. This versatility allows us to provide integrated hardware-software ecosystems for industries such as manufacturing, automation, energy, smart devices, and more. Our Commitment: As a TOP-RATED team with all 5-star reviews, we pride ourselves on delivering high-quality, reliable, and innovative solutions. By uniting mechanical engineering, electronics design, and software development, we provide our clients with a one-stop solution for product development—from initial concept and prototyping to final deployment. Our mission is to help businesses and innovators bring their ideas to life with precision, creativity, and technical excellence.

Hello! I am an experienced electrical engineer and PCB designer with over 10 years of expertise in developing innovative, reliable, and high-quality electronic solutions across diverse industries. Hol... Read more

Hello! I am an experienced electrical engineer and PCB designer with over 10 years of expertise in developing innovative, reliable, and high-quality electronic solutions across diverse industries. Holding a bachelor’s degree in electrical engineering, I have a proven track record of designing, developing, and deploying advanced circuits, embedded systems, and IoT devices. What I Bring to Your Project: • PCB Design & Layout: Skilled in schematic capture and PCB layout using Altium Designer, Cadence, PADS Mentor Graphics, KiCad, EasyEDA, and RapidHarness. I have extensive experience designing multi-layer (up to 24 layers), high-density, HDI PCBs suitable for medium and high-volume production. I am familiar with manufacturing processes including JLCPCB for PCB fabrication and local support within China to facilitate manufacturing, prototype assembly, and quick revisions. I am committed to providing results on time and maintaining clear, prompt communication with clients. • Microcontroller & Firmware Development: Proficient in programming STM32, ESP32, PIC, AVR, STM8, and STC microcontrollers using Keil, STM32CubeIDE, VSCODE, MPLAB X IDE, and more. I excel in developing firmware for IoT, automation, and embedded systems. • IoT & Wireless Communication: Expertise integrating Bluetooth, BLE, LoRa, NB-IoT, RFID, WiFi (4G), MQTT, and other protocols into embedded systems. • Sensor & Display Systems: Development of color screens, segment displays, touch panels, and interface solutions for user-friendly product experiences. • Communication Protocols: Extensive experience with I2C, SPI, UART, CAN, RS232/485, Modelbus RTU, IR, RF (433/315 MHz, 2.4G, 4G, LoRa). • Reverse Engineering & Troubleshooting: Capable of analyzing, debugging, and optimizing complex circuits. • Power & Multimedia Systems: Power management circuits, LED lighting, audio devices, sensors, and multimedia integration. • Support for China Local Manufacturing(PCBWAY, JLCPCB): In addition to design, I offer local support within China to facilitate manufacturing, prototype assembly, and quick revisions. This ensures smooth collaboration and shorter lead times Why Work With Me: I am passionate about delivering precise, innovative, and reliable designs tailored to your specific needs. I prioritize quality, efficiency, and clear communication to ensure your project’s success — from prototype to production. I am committed to providing results on time and responding promptly to any client inquiries, ensuring smooth and efficient collaboration.

R&D engineer with multidisciplinary skillsets: - 3+ years of CAD design and engineering simulation. - 3+ years of electronic circuit design and PCB assembly. - 3+ years of hardware assembly via 3D... Read more

R&D engineer with multidisciplinary skillsets: - 3+ years of CAD design and engineering simulation. - 3+ years of electronic circuit design and PCB assembly. - 3+ years of hardware assembly via 3D printing techniques. - 3+ years of firmware and microcontroller programming. - 3+ years of scientific research in the field of Bioengineering.

R&D / Electromechanical Engineer / Product & Prototype Development / Mechanical, Electronics, PCB & Software Design / Inventor – Turning Innovative Ideas into Real Devices / Open to Full-Time or Contr... Read more

R&D / Electromechanical Engineer / Product & Prototype Development / Mechanical, Electronics, PCB & Software Design / Inventor – Turning Innovative Ideas into Real Devices / Open to Full-Time or Contract Roles

I am an experienced embedded hardware and firmware engineer specializing in high-performance, low-power and compact device development with over 10+ years. My expertise covers a wide range of embedded... Read more

I am an experienced embedded hardware and firmware engineer specializing in high-performance, low-power and compact device development with over 10+ years. My expertise covers a wide range of embedded processors and communication interfaces, as well as advanced signal and sensor integration. Key Skills: - Embedded processors: STM32, ESP32, TMS32, DM3730, DA14583, LoRa, nRF52, Arduino, Atmega, PIC, RAK4, SIM7 - High-speed routing up to 24 Gbps PCIe, SDI - Memory interface: SRAM, DDR, DDR2, DDR3, DDR4 - Communication: PCIe, SATA, HDMI, Ethernet, USB, UART, SPI, I²C, CAN, RS485/422, RS232C -Wireless: Bluetooth, Wi-Fi, Z-Wave, Zigbee, RFID Sensor integration: ECG, PPG, HRM, SPO₂, CO₂, Temperature, PIR, Touch, Pressure - Simulation tools: MATLAB, Proteus, Multisim, HyperLynx. My Advantages - Stable and reliable design - Fast and precise development - Deep industrial understanding - Safety and ergonomic awareness - Cost-effective manufacturing insight - Strong collaboration experience - High-quality prototype to product - Commitment to perfection Over a decade of successful embedded design experience, completing numerous projects across industrial, medical, and IoT applications. Proven ability to deliver top-quality results in minimal time through strong technical insight, practical design sense, and effective client collaboration.