Hire the best freelance Microcontrollers expert designers for your company

Electrical Engineering Professional with over 3 decades of experience in the System-Level Architecture and Design of Radio Frequency (RF / Microwave / mmWave), Power Conversion (Linear and SMPS), Anal... Read more

Electrical Engineering Professional with over 3 decades of experience in the System-Level Architecture and Design of Radio Frequency (RF / Microwave / mmWave), Power Conversion (Linear and SMPS), Analog Mixed-Signal, Quantization and Linearization, Phase Lock Loops (PLLs) and Servo Control Systems, Motion-Control (Robotics), Digital Logic (FPGAs) and State Machines, Embedded (MCU, CPU, GPU, DSP, SoC), Electro-Magnetics (EMC), Electro-Optical (Video delivery, Displays, High Resolution Visible / IR / UV Cameras), and Electro-Mechanical disciplines for Space, Aerospace, Military, Defense, Aviation (Avionics), Medical, Marine, Automotive, Locomotive, Transportation, Industrial, Consumer, Wearables, Commercial, High Performance Computing, Data Communications, LAN/SAN/WAN, Telecommunication, Wireless Charging & IoT Sensors, Radio, Broadcast, and Motion Picture industries

I am a multidisciplinary engineer specializing in the integration of mechanical design, electronics, and software development to deliver complete, real-world engineering solutions. With a strong found... Read more

I am a multidisciplinary engineer specializing in the integration of mechanical design, electronics, and software development to deliver complete, real-world engineering solutions. With a strong foundation across these domains, I bring a systems-level perspective that allows me to design, prototype, and implement projects from concept to deployment. On the mechanical side, I have extensive experience in CAD design, product development, and manufacturing-ready solutions. I focus on creating efficient, practical designs that consider real-world constraints such as materials, fabrication methods, and cost optimization. In electronics, I work with embedded systems, PCB design, and hardware integration. I am comfortable developing schematics, selecting components, and ensuring reliable communication between hardware and control systems. On the software side, I develop firmware and control logic for embedded devices, as well as higher-level applications for automation, data acquisition, and system monitoring. I have experience working with microcontrollers, PLCs, and industrial communication protocols, enabling seamless integration between hardware and software systems. What sets me apart is my ability to bridge these disciplines. Instead of treating mechanical, electrical, and software components separately, I design them as a unified system—resulting in more robust, efficient, and scalable solutions. I have worked on projects ranging from industrial automation and embedded systems to custom machinery and prototyping. I collaborate effectively with cross-functional teams, including mechanical engineers, electrical engineers, and software developers, ensuring smooth communication and successful project delivery. If you are looking for someone who can take ownership of a project end-to-end, reduce complexity, and deliver practical engineering solutions, I would be glad to help bring your ideas to life.

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.

I design electronic products, combining PCB design, embedded hardware and enclosure development. Main focus is helping to design products that are ready for manufacturing and real usage. I am student... Read more

I design electronic products, combining PCB design, embedded hardware and enclosure development. Main focus is helping to design products that are ready for manufacturing and real usage. I am student of Faculty of Electrical Engineering, where I learned and worked with software for designing and simulating semiconductor components, such as diodes, MOSFETs etc, as well as PCB design, embedded programming and embedded hardware development. Also, I have experience in jobs in the profession as I worked as R&D engineer, where my main focus was embedded programming and hardware development and as test engineer, where my main focus was to test electronic devices on various tests that aligns with test that are done in certification houses to check if devices would pass those certification house test and internal standards, such as EMI, resistance to electrical disturbances and many more. My portfolio includes: -various development boards (with STM32 and ESP32 microcontrollers); -USB 2.0 Hub with 4 outbound USBs, with full enclosure design; -Clock project with RP2040 microcontroller, light sensor, addresable LEDs, with full enclosure design; -ESP32 IoT project - includes relay, LED driver, humidity and temperature sensor, GPIO pins for additional peripherals; -Buck Converter - 9-36V input to 5V output with main focus on automotive compatible components. Skills I gained over the years while studying and working on jobs in the profession are: -PCB (Schematic, Layout) Design; -Embedded Hardware Design; -Microcontroller-Based Systems (STM32, ESP32, RP2040); -Power Supply Design; -Enclosure Design; -Prototype Development; -DFM; -Product Integration; -Hardware Debugging. Software I am skilled in: -Altium Designer; -KiCad; -EasyEDA; -Solid Edge; -LTSpice.

Mechatronics engineering. Mechanical engineering and CAD specialist. Part modeling, machine and electro-mechanical system design. Gadget design and programming. Cnc machine design(mills, automatic... Read more

Mechatronics engineering. Mechanical engineering and CAD specialist. Part modeling, machine and electro-mechanical system design. Gadget design and programming. Cnc machine design(mills, automatic welders, drills, plotters, 3D printing, lathes) Convert pdf, jpg to technical drawings and 3D models. I am actively programming microcontrollers for the past 5 years(c, c++, java, python). PLC programming and automatisation. I have been an active member of some national projects: Montenegrin Wearable Robots Formula Student Montenegrin Autonomous Vehicles In these projects my role was designing electro-mechanical systems, 3D/2D/tehnical drawing, microcontroller programming.. My finishing project on faculty was cnc plotter machine, with A3 format of drawing/writing. Currently, I am working on 5 axis cnc metal milling machine for my master thesis.

Final-year Bioengineering student with experience in designing and developing custom electronic devices, mechanical prototypes, and 3D printed parts. Skilled in CAD design, electronics, microcontrolle... Read more

Final-year Bioengineering student with experience in designing and developing custom electronic devices, mechanical prototypes, and 3D printed parts. Skilled in CAD design, electronics, microcontrollers, and signal processing. Projects include EMG-based hand gesture recognition, chiller system design, and custom sports/rehabilitation equipment. Detail-oriented, creative, and committed to delivering accurate, functional, and client-focused solutions.

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.

I am an Electronics and Communication Engineer with experience in electronic hardware design, PCB design, embedded systems, and IoT development. I specialize in designing reliable electronic circuits,... Read more

I am an Electronics and Communication Engineer with experience in electronic hardware design, PCB design, embedded systems, and IoT development. I specialize in designing reliable electronic circuits, creating professional PCB layouts, and developing embedded solutions using Arduino, ESP32, and microcontrollers. My technical skills include PCB design, circuit design, embedded programming, RF PCB design, IoT systems, industrial automation, and hardware debugging. I also have experience using Altium Designer, KiCad, CST Microwave Studio, and Proteus for schematic capture, PCB layout, and RF simulation.

Hello, Everyone! I am an embedded systems engineer, PCB designer, and firmware developer with over 10 years of professional experience. I provide complete, end-to-end solutions for a wide range of ele... Read more

Hello, Everyone! I am an embedded systems engineer, PCB designer, and firmware developer with over 10 years of professional experience. I provide complete, end-to-end solutions for a wide range of electronic device designs, supporting clients from initial concept and schematic design to PCB layout, prototyping, assembly, and full system testing. I have strong expertise in high-speed PCB design, including PCIe and DDR4 routing, as well as precise impedance matching for reliable performance at high frequencies. I also specialize in RF and antenna design for modern IoT devices, ensuring optimal signal integrity and system efficiency. In addition, I have deep experience in ultra-low power design, achieving microamp and sub-microamp current consumption for battery-operated and wearable systems. I specialize in firmware development for LTE-GPS-LoRa-BLE-based embedded systems (nRF52 series), including low-power optimization and high-precision sensor acquisition. My focus is on delivering robust, production-ready solutions with high reliability and performance. 🔥 Main Skills 👉Embedded Systems 👉Schematic Circuit Design(Low Power consumption Design) 👉Firmware Development(All Microcontrollers-STM32, TMS320, ESP32, FPGA, nRF52, Raspberry PI) 👉PCB Design(High speed signal routing, PCIe, DDR4, 18 multi-Layers Design, RF antenna Design,) using Altium Designer, KiCad, EasyEDA, Fusion 360(No problem in DFM-JLCPCB) 👉IoT with nRF52(BLE), LoRa(for example, SX1262), LTE(SIM card interface), GPS and other variety of sensors 🛠️Tools & Technologies: 👉 nRF5 SDK / nRF Connect SDK 👉SEGGER Embedded Studio + J-Link debugging 👉 C/C++ (bare-metal & RTOS) 👉 BLE GATT, LTE AT commanders, custom wireless protocols 👉SPI / I2C / UART / ADC integration 👉Low-noise measurement systems (nA level) 👉STM32CubeIDE, Cube MX, Keil, CCS, Arduino, ... 👉MQTT, Free RTOS, Zephyr RTOS 🚀 I can support your project from concept to production.

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

In any robotics or embedded system project, hardware design is the backbone of success. A single design mistake can cause failures, but a well-structured circuit and PCB can maximize performance, reli... Read more

In any robotics or embedded system project, hardware design is the backbone of success. A single design mistake can cause failures, but a well-structured circuit and PCB can maximize performance, reliability, and efficiency. If you want to enhance your robot’s performance or ensure your control system runs smoothly — you’re in the right place! I’m Reem, an Electronics & Communications Engineering student with strong interest and hands-on experience in circuit design and PCB layout. I’ve worked on multiple projects using ESP32, Arduino, IR sensors, and motor control, where I handled schematic design, PCB layout, and manual fabrication. Alongside my technical background, I also support clients with professional document design, including Word files, PowerPoint presentations, and Canva slides — perfect for showcasing your technical work or training content clearly and attractively. 🔹 Services I Provide: Circuit design & simulation PCB layout (single & multi-layer) Component selection & datasheet analysis Embedded systems integration (ESP32, Arduino, microcontrollers) Preparing training materials & educational content Technical writing & structured documentation Designing Word and PowerPoint files with clear, professional formatting I aim to deliver reliable, well-documented, and organized work, with clear communication and a client-focused approach to ensure satisfaction and high-quality results. Let’s talk about your project! I’d love to understand your idea and help you turn it into a practical, efficient hardware solution. Feel free to reach out. I’m always happy to discuss your goals and suggest the best path forward.

I am Md. Sanowar Hossin, an Electrical and Electronic Engineer with 13+ years of experience in electronics R&D. I specialize in high-quality PCB design and embedded systems development. My expertise i... Read more

I am Md. Sanowar Hossin, an Electrical and Electronic Engineer with 13+ years of experience in electronics R&D. I specialize in high-quality PCB design and embedded systems development. My expertise includes advanced PCB layout using Altium Designer, KiCad, EasyEDA, and Eagle. i was completed more then 1000 PCB Design for my clients. I work with Analog, Digital, Power Electronics and Microcontroller based systems. I have a deep background in microcontroller programming, having successfully completed numerous projects using AVR and PIC architectures, specifically the PIC16F, ATmega8, and ATmega16 series. Additionally, I am highly proficient in developing IoT and wireless solutions using Arduino, ESP8266, and ESP32 microcontrollers. I provide for client: * PCB Design (Single-layer, Double-layer, Multi-layer) * Reverse Engineering * Schematic Design from physical boards or images * Gerber, BOM, and Pick & Place File * Arduino and Embedded Hardware and programming. * PIC/AT-Mega Microcontroller Based Embedded system Hardware and programming. * DFM (Design for Manufacturing) * Component Placement and Routing Optimization * Silkscreen, Drill Files, and Layer Stackups * ESP32 Design * Gerber Files I provide unlimited reviews for my client.

Professional software and hardware solutions provider. Arduino, Raspberry Pi, ESP, C#, C++, Python. Programming Microcontrollers, hardware software integration, system installation

Professional software and hardware solutions provider. Arduino, Raspberry Pi, ESP, C#, C++, Python. Programming Microcontrollers, hardware software integration, system installation

I enjoy binding different branches of engineering together, so that's why I chose to be Mechatronics and control engineer. In Mechatronics, you play with electronics, mechanics, programming, and contr... Read more

I enjoy binding different branches of engineering together, so that's why I chose to be Mechatronics and control engineer. In Mechatronics, you play with electronics, mechanics, programming, and control theory to make superb applications and products. The name of the game is successful integration between different domains, which is a missing skill searched by many engineers, and needed by many Start-ups. I am new here, but I have finished more than 60 freelancing tasks and missions in other sites. I have used PIC microcontroller and Arduino to implement so many projects, and I have even used them to make commercial products. I have the talent of integrating embedded systems with electronics and GUI interface to make a complete application. I used microcontrollers in applications like: Sensors Interfacing (GPS-Motion-Encoder-Light-Temperature-Level-Pressure-Vibration-Position) - CNC machine control - Proportional and on/off temperature controllers - Level controller - Power metering IC interfacing (Experience with ADE7953) - Wifi & IoT - GSM - SD card interfacing. Moreover, I have experinece in making integrated system between Raspberry pi and Arduino for applications that need so. Moreover, I have made many projects that involve signal electronics, power electronics, sensors and measuring systems, and signal conditioning. In addition, I and my team can give you support if you want a PCB design and soldering for your circuit. Regarding control and automation, I am finished master study in automatic control theory, and I have experience in designing embedded controllers - automatic control theory and applications - adaptive control - autotuners - system modeling & simulation- system Identification and parameters estimation - system dynamic response analysis - pole placement controllers - PID controllers - Scilab & Matlab software packages . In addition, I can give you support in PLC systems and ladder diagram programs for controlling industrial processes. In addition, I am using Java as GUI interface for my applications, so I have experience in how to make a java GUI program and to control an embedded system using it. I made several projects where I used Java to monitor sensor values, or to send control commands to electronic circuits. ِAlso I have worked before with Java libraries that serve scientific applications, like EJML matrix algebra library, JArduino (java for arduino) library, JFreeChart plotting library, ImageJ image processing libary, RXTX serial communication library, etc...

I'm an expert electronic engineer, I've worked in three different London startups in the past 6 years, and I have a PhD in electronic engineering. Over the years, I built up a lot of experience in var... Read more

I'm an expert electronic engineer, I've worked in three different London startups in the past 6 years, and I have a PhD in electronic engineering. Over the years, I built up a lot of experience in various electric and electronic fields. Now I work as a freelance and I deal with all sorts of electronic projects, the more challenging, the better. I specialize in fast prototyping, I'm a very quick designer and I can build prototypes in house, thanks to my reflow oven and soldering skills. I have experience in wearables, IoT, wireless sensor networks, long-range wireless systems, ultra-low-power electronics, energy harvesting, industrial and power electronics, and much more. I have a deep knowledge of microcontrollers and SoC of many brands, and I can write firmware for prototypes. Find below a more detailed list of skills: – 10 years embedded systems design experience in a wide range of applications: wearables, wireless sensor networks, energy harvesting, automation. – Extensive knowledge of MCUs and SoC (BLE, Wifi, LowPAN, Zigbee), MEMS, SMPS, GPS, RFID, sensors, actuators, motors, primary and secondary batteries. – Design of production testing Jigs, design for manufacturing, EMC compliance and CE marking, supply chain management, production line direct experience (Shenzhen, Taipei). – Strong background in ultra-low-power systems, miniaturization and Energy Harvesting power supply. – PCB editing (Altium, Eagle, Cadence), multilayer and flexible PCB, RF optimisation, antenna placement and antenna tuning through Vector Network Analyser (BLE, Sub GHz). – Wide laboratory experience in electronic fast prototyping (SMT soldering: 0201, 0.4mm pitch SMAs), circuit debugging and electronic measurement instrumentation. – Extended knowledge of the photovoltaic technology: mass power generation and micro generation for energy harvesting. – Extended experience with other forms of energy harvesting as MFC (Microbial Fuel Cell), vibrational, thermal, etc... – IC design using the most common electronic CADs.

I’m an Avionics & Embedded Systems Engineer with hands-on expertise in FPGA development (Xilinx, Verilog/SystemVerilog), RF & antenna simulation (CST, HFSS), and 3D CAD modeling (CATIA V5). I help cli... Read more

I’m an Avionics & Embedded Systems Engineer with hands-on expertise in FPGA development (Xilinx, Verilog/SystemVerilog), RF & antenna simulation (CST, HFSS), and 3D CAD modeling (CATIA V5). I help clients bring cutting-edge hardware ideas to life—whether it's building a real-time object detection system on FPGA or simulating a microwave filter with CST. 🔧 Core Services I Offer: • FPGA Design: Xilinx, Vivado, Verilog, SystemVerilog • Antenna & RF Modeling: CST, HFSS, ADS, VNA • CATIA Mechanical Design: Aerospace, Avionics & Custom 3D Models • Embedded Systems: Arduino, Microcontrollers, Signal Processing • Simulation & Modeling: MATLAB, Simulink, Model-Based Design (DO-331) 🏆 Highlights from Past Work: • YOLOv3-based object detection on FPGA (PYNQ-Z2 with Petalinux) • RF dipole antenna design at 800MHz (CST) • NRZ to Manchester waveform processor (DO-331 compliant) • Engine Monitoring System (EMAS) in Simulink • Dual-motor control system for UAV guidance (Arduino + MPU) 🧰 Tools & Platforms: Vivado, Verilog, CST, HFSS, CATIA, MATLAB, Simulink, ADS, Python, Arduino, KiCAD, ModelSim, Proteus, C++

I am an experienced Electrical & Electronics Engineer with over 20 years of expertise in industrial communication systems, electronics design, and mechanical product development. My unique strength li... Read more

I am an experienced Electrical & Electronics Engineer with over 20 years of expertise in industrial communication systems, electronics design, and mechanical product development. My unique strength lies in combining electronics engineering with mechanical design using SolidWorks, enabling me to deliver complete solutions from concept to production. I have successfully managed and executed projects in maritime communications, petrochemical plants, port security systems, and audio equipment design. My background as both an engineer and a CEO gives me strong project management skills and the ability to deliver high-quality results on time.

Being Electromechanical Engineer, I have been working for 4 years as Research & Development Engineer in the Medical Devices industries. This function includes hardware and software engineering (electr... Read more

Being Electromechanical Engineer, I have been working for 4 years as Research & Development Engineer in the Medical Devices industries. This function includes hardware and software engineering (electronic circuits design, microcontrollers programming), mechanical systems design, verification & validation. While still working as employee in the medical field, I offer Engineering services as Freelance since July 2019 with the purpose to challenge myself with new projects.

Signal Integrity Electronics is a small family business. We have been designing electronic devices for inventors, startups and small technology companies since 1997. We specialize in proprietary contr... Read more

Signal Integrity Electronics is a small family business. We have been designing electronic devices for inventors, startups and small technology companies since 1997. We specialize in proprietary controller boards for motor, heater and lighting control. We are experts with micro-controllers (hardware and firmware), networked sensors using copper and radio (Ethernet/WiFi, 802.15.4, proprietary protocols), solar power and battery management. We have done scores of design and prototyping projects for industrial, agricultural and medical applications.

Embedded systems architect with extensive experience designing, developing, and mass-producing mission-critical electronic products for the energy, utilities, security, and oil & gas sectors. I've su... Read more

Embedded systems architect with extensive experience designing, developing, and mass-producing mission-critical electronic products for the energy, utilities, security, and oil & gas sectors. I've successfully delivered 8+ commercial hardware products currently deployed at scale across hundreds of field units. My work spans the full product lifecycle — from concept and R&D, through circuit design and PCB layout, to firmware development and mass manufacturing. Core expertise: - Microcontrollers: ESP32, STM32, ARM Cortex, Arduino - PCB Design: from schematic to production-ready Gerbers - Firmware: C/C++, FreeRTOS, OTA remote updates, MQTT, device drivers - Communication: LoRa, BLE, Wi-Fi, Cellular (2G/3G/4G), Satellite, VHF, RS485 - Sensors: Ultrasonic, seismic, acoustic, optical, temperature, pressure, current/voltage - IoT & Cloud: AWS IoT, MQTT, web dashboards - Power: Solar, ultra-low power design, battery management, energy harvesting All my firmware deliverables include a built-in OTA (Over-The-Air) update system with a web-based MQTT management interface — fully developed and field-tested across hundreds of devices. Highlights: - 3 technology patents (gas metering, ultrasonic measurement, optical coding) - Petrobras Inventor of the Year award - National Innovation Award (CNI - Brazil) - International publication (Society of Petroleum Engineers) - Postgraduate specialization in Artificial Intelligence I deliver production-ready solutions — not just prototypes.

I am an embedded systems engineer specializing in firmware development and hardware integration for IoT and microcontroller-based systems. I have experience working with ESP32, STM32, and AVR (ATmega... Read more

I am an embedded systems engineer specializing in firmware development and hardware integration for IoT and microcontroller-based systems. I have experience working with ESP32, STM32, and AVR (ATmega) platforms, developing reliable firmware for real-time and low-power applications. I focus on building practical embedded solutions including sensor integration, communication protocols (UART, I2C, SPI, MQTT), and system debugging. I also work with PCB design and hardware prototyping, ensuring smooth integration between firmware and circuit design. My goal is to deliver clean, efficient, and maintainable embedded solutions that meet real-world product requirements. ⚡Skills & Expertise⚡ - Microcontrollers: ARM (STM32, NXP), AVR, PIC, ESP32, Arduino, Raspberry Pi - Programming Languages: C, C++, Embedded C, Python (for prototyping/testing) - RTOS & Firmware: FreeRTOS, Zephyr, Bare-Metal, HAL/LL Drivers - Connectivity: Bluetooth (BLE), Wi-Fi, LoRa, Zigbee, MQTT, Modbus - Protocols: SPI, I2C, UART, CAN, USB, RS-485 - PCB Design: Altium Designer, KiCad, Eagle - Debugging Tools: JTAG, SWD, Logic Analyzers, Oscilloscopes - Simulation & Modeling: MATLAB/Simulink (if applicable) ⚡Services I Offer⚡ - Firmware development from scratch or modification - Embedded system prototyping and product design - Driver development for sensors, displays, and communication modules - IoT solutions: Edge device programming + Cloud integration - PCB design and hardware validation - Optimization of power, memory, and processing usage - Debugging and troubleshooting hardware/software issues ⚡Why Hire Me?⚡ - Timely Delivery - Clean, well-documented code - Long-term support and maintenance - Open communication & flexibility - End-to-end embedded product support I’d love to hear about your project. Whether you're building from scratch or improving an existing system, I can help bring your ideas to life.

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.

I am a Mechatronics Engineering graduate passionate about embedded systems, robotics, and electronics. I specialize in Embedded C development, writing efficient, low-level firmware for microcontroller... Read more

I am a Mechatronics Engineering graduate passionate about embedded systems, robotics, and electronics. I specialize in Embedded C development, writing efficient, low-level firmware for microcontrollers. I have experience in Arduino-based prototyping and hardware-software integration. I also design schematics and multi-layer PCBs using KiCAD, focusing on signal integrity, power management, and manufacturable designs. I am driven to solve real-world problems through innovative hardware and software solutions. Feel free to reach out for end-to-end embedded solutions.

I’m able to utilize my engineering knowledge by applying fundamental and diversified engineering theories and concepts to achieve objectives innovatively, with versatility, and efficiency. I can also... Read more

I’m able to utilize my engineering knowledge by applying fundamental and diversified engineering theories and concepts to achieve objectives innovatively, with versatility, and efficiency. I can also adapt and apply the many methods and techniques I’ve acquired through study, and interest, in a broad spectrum of scientific disciplines; and can organize, analyze, interpret, and evaluate scientific data in the solution of engineering problems

Do you need electrical engineering expertise? Hey there! For those of you who do not know me, my name is Nicholas. I am an Electrical Engineering Consultant, and I have something really important tha... Read more

Do you need electrical engineering expertise? Hey there! For those of you who do not know me, my name is Nicholas. I am an Electrical Engineering Consultant, and I have something really important that I want to share with you today. For most of you reading this, hiring an electrical engineering freelancer or contractor has been a struggle to say the least. You have likely lost a great deal of money only to receive a sub-marginal product. Constant change orders, redraws, slow work, missed deadlines, failing “cross-functional” teams, no quality assurance, and huge bills are just a few examples. I would imagine that you are feeling very frustrated, confused, and maybe even a little humiliated. Does this sound about right? You are correct to be worried, because many people get screwed over when they hire an engineering contractor. But what if I told you there is one thing, just one thing you could do to flip the script? It is as easy as sending me a message on Cad Crowd. I am an American entrepreneur, electrical engineer, and trusted consultant. I am an accomplished expert with nearly a decade of experience in the electrical engineering industry. As a knowledgeable professional with experience in the nuclear industry, I have had serious involvement with numerous quality-dependent, critical power and control systems. Within five years of graduating from the prestigious Clarkson University with a Bachelor of Science Degree in Electrical Engineering, in addition to minors in both Computer Science and Mathematics, I obtained experience at a multinational technology company and also rapidly became a trusted, lead analytical engineer at Indian Point Energy Center. Today, I help individuals and entrepreneurs maximize their profits by increasing their technical expertise. Once we are both interested in working together on a project, before you even spend a penny, I offer a free, no-obligation video conference kick-off meeting to eliminate any reasonable doubt that we are a perfect match for each other. When working with me, you get to save money on high-quality services. If, like for many cash-constrained businesses, your budget is under scrutiny, you may be forced to rationalize your procurement model. Traditional consulting firms are just not agile enough to adapt. Red tape strangles engineers in many firms. Do not overspend on a wasteful system. Embrace the cost reductions! It is the only way to accelerate your growth and wealth! When working with me, you have access to a quick, easy, and convenient hiring process. In the engineering services sector, most businesses still rely heavily on localized industry experts, consulting firms, and in-house talent. These engineers are often experts, but their geographic proximity to their clients is more often their greatest fortune. The process for procuring my service is extraordinarily quick and simple. I embrace business flexibility. All you need to do is send me a brief message on Cad Crowd! When working with me, you get clarity and security. The payments involved are clearly defined upfront. You do not assume the risk that a firm might claim to be starting a project, take a deposit, and then not deliver. There is no reason not to act now. Your co-workers will rave about your success! When firms change engineers during the project, team turnover can put projects of any size at risk. Throughout the process, one or more team members leaving could result in a project failing if the knowledge and talent walk out the door. When working with me, you know that I am going to be the one working on your project from start to finish with an outcome driven mindset. Visit the link below now to check out my website and see why businesses come to me for solutions. I want to help you, but I am a busy guy and do not have much time to add additional projects to my plate. Do not wait until it is too late. Do not continue to struggle day to day to ensure your market dominance and make a sustainable profit. Everyone knows that we needed our independent expert opinion and design solutions yesterday. Make your life easier. Send me a message on Cad Crowd now to get your project started! I will talk to you soon.

I am a highly skilled Electronics and Embedded Systems Engineer with a specialized focus on high-speed PCB design and system-level hardware integration. My expertise lies in bridging the gap between c... Read more

I am a highly skilled Electronics and Embedded Systems Engineer with a specialized focus on high-speed PCB design and system-level hardware integration. My expertise lies in bridging the gap between complex digital logic and physical hardware, having successfully designed and prototyped sophisticated multi-processor platforms and IoT solutions. ​Core PCB Design Competencies ​My technical proficiency spans the entire hardware development lifecycle, from initial schematic capture to manufacturing and prototyping workflows. ​High-Speed Interface Design: I have extensive experience routing and integrating high-speed protocols including PCIe, DDR3/DDR4, USB 3.0, Gigabit Ethernet, and MIPI CSI/DSI. ​Multi-Processor Architectures: My work includes designing complex boards that integrate CPLDs (EPM240) for deterministic IO, STM32 microcontrollers, and RK3568 Linux SBCs. ​RF & Wireless Integration: I specialize in the integration of LoRa (SX1276), GPS, Wi-Fi, and BLE modules, ensuring optimal antenna performance and signal integrity. ​Design Tools: I am certified and proficient in industry-standard EDA tools, including Altium Designer, KiCad, and EasyEDA. ​Proven Project Impact ​Universal Control Platform (2025): Acted as the system architect for a high-performance board featuring Hailo-8 AI accelerators via PCIe and complex MIPI camera interfaces. ​IGURU Farm GPS Tag System: Led the electronics design for LoRa-enabled livestock tracking collars, managing everything from PCB layout and antenna integration to rigorous field testing. ​Payment & Security Systems: Developed robust hardware for NFC/RFID payment terminals, implementing secure transaction logging to SPI flash and reliable network uplinks. ​With a focus on reliability and innovation, I leverage advanced prototyping workflows including JLCPCB integration to deliver high-quality electronic systems for industrial, agritech, and security applications.