Hire the best freelance ESP32 Development expert designers for your company

I am a skilled PCB Design and Electronics Engineering professional with experience in schematic design, PCB layout, and embedded systems development. I specialize in creating high-quality, manufactura... Read more

I am a skilled PCB Design and Electronics Engineering professional with experience in schematic design, PCB layout, and embedded systems development. I specialize in creating high-quality, manufacturable PCB designs for Arduino, ESP32, IoT, automation, and electronic product projects. My services include: PCB layout and routing Schematic design Gerber and manufacturing files Multi-layer PCB design Component selection and BOM preparation 3D PCB visualization Prototype-ready circuit boards I work with tools such as KiCad, Altium Designer, EasyEDA, and Proteus to deliver clean and efficient designs with attention to detail and performance. I am committed to clear communication, fast delivery, and client satisfaction while helping businesses, startups, and individuals turn their electronic ideas into reality.

🎯End-to-End Hardware & Embedded Systems Development We are a specialized engineering team focused on turning concept sketches and product requirements into production-ready electronic hardware. Opera... Read more

🎯End-to-End Hardware & Embedded Systems Development We are a specialized engineering team focused on turning concept sketches and product requirements into production-ready electronic hardware. Operating at the intersection of circuit design, firmware architecture, and physical enclosure integration, we bridge the gap between abstract code and manufactured reality. If you are building IoT devices, smart hardware products, or custom automation equipment, we manage the complete development lifecycle—ensuring your electronics work reliably on the bench and seamlessly fit your physical product constraints. Core Expertise & Capabilities: 🔷Advanced PCB Layout & Schematic Capture: Multi-layer designs, high-speed routing, power management, and RF considerations using industry-standard tools (Altium Designer, KiCad). 🔷Embedded Firmware Development: Bare-metal and RTOS-based firmware development, sensor integration, wireless communication protocols (BLE, Wi-Fi, LoRa, Zigbee), and custom peripheral drivers. 🔷Electro-Mechanical Integration: Designing circuit boards to fit precisely inside custom 3D enclosures, minimizing iteration loops between mechanical constraints and electrical placement. 🔷Prototyping & DFM (Design for Manufacturing): Generating precise Gerber files, BOMs (Bill of Materials), and assembly documentation optimized for smooth transition to PCB assembly houses. 🔷Lab Testing & Bring-Up: Rigorous testing utilizing professional bench equipment (oscilloscopes, power supplies, logic analyzers) to ensure hardware stability before mass production. Why Partner With Us?🤝 We don't just write code or draw schematics in isolation; we view every project through the lens of manufacturability and real-world performance. Whether you need a standalone board layout or an entire prototype built from scratch, we deliver clean, scalable, and production-ready documentation. Let’s build something functional and robust. Reach out to discuss your hardware specifications!

Electronic Hardware and Embedded Systems Engineer with 4+ years of hands-on experience in circuit design, PCB development, embedded firmware, IoT, RF/high-speed hardware, and power electronics. I have... Read more

Electronic Hardware and Embedded Systems Engineer with 4+ years of hands-on experience in circuit design, PCB development, embedded firmware, IoT, RF/high-speed hardware, and power electronics. I have worked on complete product-development cycles from schematic design and component selection through multilayer PCB layout, prototyping, debugging, validation, and manufacturing-ready delivery. I have delivered more than 150 PCB and hardware projects for manufacturing and product-development clients through freelance platforms such as ▒▒▒▒▒▒ and ▒▒▒▒▒▒, gaining strong experience in client communication, design requirements, production documentation, troubleshooting, and final delivery. My work includes STM32/ESP32 systems, industrial electronics, sensor interfaces, RS485/Modbus, wireless IoT devices, motor-control hardware, mixed-signal circuits, power-management boards, and RF/5G multilayer PCBs. I work with Altium Designer, KiCad, EasyEDA Pro, C/C++, STM32CubeIDE, PlatformIO, and LTspice. I can support complete hardware development, including schematic capture, PCB layout, BOM preparation, Gerber and drill files, CPL/Pick-and-Place files, DFM/DFT review, hardware bring-up, testing, debugging, and technical documentation. My focus is always on delivering reliable, manufacturable, and well-validated hardware that is ready for production.

I am an Embedded Hardware Design Engineer I have strong experience in High-Speed PCB design, ESP32 microcontrollers, Ethernet, GSM , LoRa and Digital/Analog electronics. I am also skilled in using Alt... Read more

I am an Embedded Hardware Design Engineer I have strong experience in High-Speed PCB design, ESP32 microcontrollers, Ethernet, GSM , LoRa and Digital/Analog electronics. I am also skilled in using Altium Designer and working with communication protocols like SPI, UART, I²C, USB, and RS485. In addition, I have programming knowledge in C and a basic understanding of Linux. Some of my key achievements include designing and delivering Gateways, Ethernet Routers etc.

Freelance electronics and embedded systems engineer with [4] years of experience taking products from concept to prototype. I work on schematic design and review, PCB layout, component selection, and... Read more

Freelance electronics and embedded systems engineer with [4] years of experience taking products from concept to prototype. I work on schematic design and review, PCB layout, component selection, and power and signal integrity, as well as microcontroller firmware for platforms such as STM32, ESP32, and Arduino. I focus on hardware-software integration, peripheral communication (UART, I2C, SPI, CAN), and debugging. I also prepare manufacturing documentation including BOM and Gerber files, and I can coordinate mechanical integration with 3D models where the project requires it. I aim for reliable, simple designs that meet the requirements and can be manufactured.

Electronics engineer with hands-on experience in PCB design, embedded systems, and microcontroller-based projects. Skilled in EasyEDA, Arduino (Pro Mini, Nano), and ESP32 development. I have designed... Read more

Electronics engineer with hands-on experience in PCB design, embedded systems, and microcontroller-based projects. Skilled in EasyEDA, Arduino (Pro Mini, Nano), and ESP32 development. I have designed and built complete circuit boards from schematic to layout, including mot

I am an Electrical Engineering student at NUTECH Islamabad with hands on experience in PCB design and embedded systems I design custom PCBs in KiCad from scratch — starting from schematic all the way... Read more

I am an Electrical Engineering student at NUTECH Islamabad with hands on experience in PCB design and embedded systems I design custom PCBs in KiCad from scratch — starting from schematic all the way to Gerber files ready for manufacturing. My designs are clean DRC verified and optimized for real world manufacturing at fabs like JLCPCB and PCBWay Projects I have designed: Arduino Nano Breakout Board with full pin breakout screw terminals reset button and reverse polarity protection Custom ESP32 development board Custom Arduino Nano board Bidirectional Visitor Counter Smart Irrigation System Line Follower Robotics What I bring to your project: Complete KiCad workflow from schematic to layout to Gerbers 2-layer pr multi-layer PCB design optimized for low cost manufacturing Proper design rules clearances and DRC verification and EMI verification as well before delivery Clean silkscreen labelling and 3D verification of every board I take your idea and turn it into a manufacturable board ready to order

Mechanical Design Engineer | SolidWorks Expert | FEA, CFD & IoT Product Development Specialist I help startups, manufacturers, and product companies transform concepts into production-ready products... Read more

Mechanical Design Engineer | SolidWorks Expert | FEA, CFD & IoT Product Development Specialist I help startups, manufacturers, and product companies transform concepts into production-ready products through engineering-driven design, simulation, optimization, and prototyping. With a Bachelor's Degree in Mechanical Engineering, a specialized Diploma from the Indo-German Tool Room (IGTR), and over 6 years of industrial experience, I provide end-to-end product development services covering mechanical design, engineering analysis, fabrication engineering, embedded systems, and IoT-enabled solutions. My unique strength lies in combining advanced CAD design, simulation, manufacturing knowledge, and electronics integration to develop products that are innovative, lightweight, reliable, and ready for real-world production. --Core Engineering Services ---Mechanical Product Design & Development I specialize in transforming ideas into manufacturable products through structured engineering processes and design-for-manufacturing principles. Services include: * New Product Development (NPD) * Concept Design & Engineering * Mechanical System Design * Reverse Engineering * Design for Manufacturing (DFM) * Design for Assembly (DFA) * Fabrication-Oriented Design * Product Optimization * Prototype Development Support * Manufacturing Documentation --- --- SolidWorks Design Expertise Advanced proficiency in: * Part Modeling * Surface Modeling * Sheet Metal Design * Weldment Structures * Complex Assemblies * Parametric Design * Manufacturing Drawings * Assembly Drawings * Bill of Materials (BOM) * Motion Studies * 3D Rendering Deliverables include production-ready STEP, IGES, STL, DXF, DWG, PDF, and native SolidWorks files. --- --- Furniture, Caravan & Mobile Living Systems I specialize in engineering products where space optimization, weight reduction, durability, and manufacturability are critical. Applications include: * Luxury Caravans * Camping Trailers * Mobile Homes * Food Trucks * Mobile Kitchens * Mobile Offices * Custom Vehicle Interiors * Modular Furniture Systems * Commercial Furniture Products My designs focus on maximizing usable space while maintaining structural integrity and manufacturing efficiency. --- --- Engineering Analysis, Simulation & Optimization I use simulation-driven engineering to validate designs before fabrication, helping clients reduce development costs, minimize prototype iterations, and improve product performance. ---- Finite Element Analysis (FEA) * Static Structural Analysis * Stress & Strain Analysis * Fatigue Assessment * Buckling Analysis * Modal Analysis * Vibration Analysis * Weldment Validation * Frame Structure Analysis ---- Computational Fluid Dynamics (CFD) * Aerodynamic Studies * Internal & External Flow Analysis * Pressure Distribution Analysis * Heat Transfer Studies * Cooling System Design * Airflow Optimization * Thermal Performance Evaluation ---- Optimization for Analysis (OfA) * Topology Optimization * Weight Reduction Studies * Structural Optimization * Material Utilization Improvement * Performance Optimization * Design Validation & Iteration These techniques enable lighter, stronger, and more cost-effective products without compromising performance. --- --- UAV, Drone & Aerospace-Oriented Engineering Experience in the engineering and optimization of surveillance drones and UAV platforms. Capabilities include: * Airframe Design * Structural Validation * Aerodynamic CFD Analysis * Payload Integration * Weight Optimization * Flight-Endurance Improvement * Component Packaging * Prototype Development Support --- --- IoT Design & Development I develop complete electro-mechanical products by integrating mechanical systems, electronics, embedded programming, automation, and cloud connectivity. Capabilities include: * ESP32 Development * Arduino-Based Systems * Embedded Firmware Development * Sensor Integration * Wireless Communication Systems * Wi-Fi * Bluetooth * GSM/4G * LoRa * Remote Monitoring Solutions * Industrial Automation Systems * IoT Dashboard Integration * Smart Product Development --- --- Featured Project: Autonomous Solar Panel Cleaning Robot Designed, engineered, fabricated, programmed, and tested a fully autonomous solar panel cleaning robot developed for solar energy installations. Project scope included: * Complete SolidWorks Mechanical Design * Structural Optimization * Cleaning Mechanism Development * Chassis & Drive System Design * Embedded Control System Development * ESP32 Firmware Programming * Sensor Integration * Autonomous Navigation Logic * Battery & Power Management * IoT-Based Monitoring & Control * Prototype Fabrication & Field Testing The solution improves solar panel efficiency by automating cleaning operations while reducing labor requirements, maintenance costs, and water consumption. This project demonstrates my ability to deliver complete multidisciplinary products from concept to fun

I am an Electronics Engineer with experience in hardware design, PCB development, embedded systems, and electronic product development. I work with microcontrollers, sensors, communication interfaces... Read more

I am an Electronics Engineer with experience in hardware design, PCB development, embedded systems, and electronic product development. I work with microcontrollers, sensors, communication interfaces, RF systems, power electronics, and embedded firmware. I have experience taking electronic projects from schematic design and component selection through PCB development, firmware integration, testing, and debugging. I can help with PCB design, schematic review, hardware debugging, ESP32-based systems, sensor integration, communication interfaces, and embedded hardware development. My goal is to deliver practical, reliable, and well-documented electronic solutions that can move from prototype to a functional product.

I am a Mechanical Engineer with a specialization in Mechatronics and Product Development, focused on turning ideas into functional prototypes and technology products. My work combines CAD design, Fus... Read more

I am a Mechanical Engineer with a specialization in Mechatronics and Product Development, focused on turning ideas into functional prototypes and technology products. My work combines CAD design, Fusion 360, 3D printing, electronics, embedded systems and software development. I enjoy working across disciplines, from designing functional mechanical parts and electronic enclosures to integrating ESP32 microcontrollers, sensors, batteries and connected applications. I have developed complete prototypes involving ESP32-based electronics, Hall and PVDF sensors, Bluetooth Low Energy (BLE), custom 3D-printed components and Flutter mobile applications. I have also designed functional CAD parts including electronic enclosures, threaded assemblies, modular systems and components optimized for FDM 3D printing. My main areas of work include: • Product development and prototyping • Fusion 360 and parametric CAD • Electronic enclosures and functional parts • Design for 3D printing / FDM • Mechanical fit, tolerances and assemblies • ESP32, sensors and embedded electronics • IoT and BLE-connected products • Flutter mobile and desktop applications I am particularly interested in projects where a client has an idea, sketch, electronic prototype or PCB and needs help transforming it into a practical, well-designed physical product.

I help clients with PCB design, PCB revisions, manufacturing files, and embedded systems development. I work with KiCad, Altium Designer, ESP32, STM32, and Arduino on practical electronics projects.... Read more

I help clients with PCB design, PCB revisions, manufacturing files, and embedded systems development. I work with KiCad, Altium Designer, ESP32, STM32, and Arduino on practical electronics projects. My services include schematic and PCB design, small PCB revisions, Gerber and Drill file preparation, BOM and Pick-and-Place files, and simple embedded firmware development in C/C++. I have hands-on experience with electronic product development, manufacturing processes, troubleshooting, testing, and quality control. I focus on clearly defined scope, organized deliverables, and practical communication. Before starting a project, I review the requirements carefully and confirm the deliverables, timeline, and project scope.

I am an Electronics and Embedded Systems Engineer specializing in PCB design, schematic development, and microcontroller firmware programming. I help clients turn electronic product ideas into reliab... Read more

I am an Electronics and Embedded Systems Engineer specializing in PCB design, schematic development, and microcontroller firmware programming. I help clients turn electronic product ideas into reliable and manufacturable hardware solutions. My experience includes designing PCB layouts, selecting components, preparing BOM and production files, and developing embedded firmware for STM32 and ESP32 microcontrollers. My services include: • Schematic design and PCB layout • Altium Designer projects • STM32 and ESP32 firmware development • Embedded C/C++ programming • Sensor, display, and actuator integration • UART, SPI, I2C, CAN, and Modbus communication • Component selection and BOM preparation • Gerber and manufacturing file preparation • Hardware debugging and prototype improvement • Design for Manufacturing and Assembly I focus on clear communication, organized project files, practical engineering solutions, and designs that are ready for prototyping and production. I am available for PCB design, embedded firmware, IoT hardware, product prototyping, and electronics development projects.

I help startups and technology companies transform ideas into manufacturable electronic products. With 5+ years of experience in embedded systems, robotics, PCB design, firmware development, and medi... Read more

I help startups and technology companies transform ideas into manufacturable electronic products. With 5+ years of experience in embedded systems, robotics, PCB design, firmware development, and medical devices, I develop complete hardware and software solutions from concept through prototype. My expertise includes: • STM32 & ESP32 Firmware Development • Embedded C/C++ • PCB Design (KiCad, Altium, EasyEDA) • Robotics & Motion Control • Stepper/BLDC/DC Motor Control • Sensor Integration • Medical Device Development • Product Prototyping • UART, SPI, I²C, CAN, USB • SolidWorks & Fusion 360 • System Testing & Validation I enjoy solving complex engineering challenges and delivering reliable, production-ready solutions.

If you need an engineer to take your idea and produce a functional design/prototype, your likely reading the right profile. Services I offer: 1. Rapid prototype development 2. CAD design (3D, 2D, ren... Read more

If you need an engineer to take your idea and produce a functional design/prototype, your likely reading the right profile. Services I offer: 1. Rapid prototype development 2. CAD design (3D, 2D, renders, animations, etc..) 3. Hardware programming (Arduino, ESP32, Raspberry PI, etc..) 4. PLC programming. (Brands: Click, Productivity, Unitronics, and DoMore) 5. Electrical design 6. 3D printing 7. Fabrication and testing in-house 8. Willing to travel for installs, testing, proofing, and assembly of machinery. 9. Much more... With experience producing custom products that range from toys to industrial equipment, I am accustomed to working on many product types. With a well-stocked inventory, I am typically able to offer functional plug-n-play rapid prototypes built and delivered with fast turnaround options available. Please feel free to reach out to setup a free meeting to dicuss your project. Cheers, Jared.H

I specialize in embedded systems, electronics, and PCB design, helping turn ideas and prototypes into functional hardware. I can work across both hardware and firmware, including schematic design, PC... Read more

I specialize in embedded systems, electronics, and PCB design, helping turn ideas and prototypes into functional hardware. I can work across both hardware and firmware, including schematic design, PCB layout, microcontroller programming, debugging, prototyping, and manufacturing files. My technical skills include: • ESP32, STM32 and Arduino development • C/C++ and Python programming • KiCad, Altium Designer and EasyEDA • Schematic capture and circuit design • 2-layer and 4-layer PCB design • Component selection and BOM creation • Gerber, BOM and Pick-and-Place/CPL preparation • PCB debugging and troubleshooting • SMD soldering and prototyping • Sensors, displays and communication interfaces • UART, I²C, SPI, USB, RS-232 and RS-485 • 3D printing and prototype development I am comfortable working from an existing prototype or developing a solution from requirements. I focus on practical, manufacturable designs and clear communication throughout the project. I am a native Portuguese speaker from Portugal and can communicate in English.

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.

Hello Everyone! I help businesses and innovators design and develop reliable IoT and Embedded Systems solutions that automate processes, enhance efficiency, and bring smart devices to life. As an E... Read more

Hello Everyone! I help businesses and innovators design and develop reliable IoT and Embedded Systems solutions that automate processes, enhance efficiency, and bring smart devices to life. As an Electrical Engineer specializing in Embedded Systems, IoT, and Microcontroller Programming, I provide end-to-end hardware and firmware solutions tailored to your project’s needs. I turn complex electronics concepts into practical, scalable, and robust devices. I have hands-on experience with microcontrollers such as ESP32, STM32, and Arduino. My expertise covers sensor integration, real-time embedded systems, and seamless hardware–software communication. I also implement communication protocols like UART, SPI, I2C, and MODBUS to ensure reliable and efficient data exchange across your devices. In addition to electronics design, I also create **2D and 3D designs using AutoCAD** for PCB enclosures, product housings, and mechanical components—helping you visualize and build complete, ready-to-manufacture solutions. **My core skills include:** • Embedded C/C++ Programming • ESP32, STM32, Arduino Development • Sensor Integration and Data Acquisition • IoT System Development • PCB Prototyping and Hardware Debugging • Serial Communication Protocols (UART, SPI, I2C, MODBUS) • AutoCAD 2D & 3D Design (PCB Enclosures & Mechanical Parts) I focus on delivering clean, efficient, and reliable solutions that meet your exact requirements. Whether it’s building custom IoT devices, automating processes, designing enclosures, or developing smart electronics, I help you bring your ideas to reality. Let’s collaborate to create systems that perform flawlessly and add real value to your project.

I specialize in PCB design, electronic circuit development, and embedded systems prototyping under Vector Robotics. My experience includes custom PCB schematic design, component selection, PCB layout... Read more

I specialize in PCB design, electronic circuit development, and embedded systems prototyping under Vector Robotics. My experience includes custom PCB schematic design, component selection, PCB layout, and preparation of manufacturing files using KiCad and EasyEDA. I work on ESP32 and ESP32-S3 projects, IoT devices, robotics electronics, sensor interfaces, battery-powered circuits, and power management modules. My services include: - Electronic schematic design - Single-layer and multilayer PCB layout - Component placement and routing - Gerber files and Bill of Materials (BOM) - 3D PCB visualization - ESP32-based hardware design - PCB design revisions and manufacturing file preparation My portfolio includes a custom USB-C battery charging and power management PCB, with schematic, routed layout, and assembled hardware. I focus on clear communication, practical engineering solutions, and organized project deliverables.

I am an Electronics Engineering undergraduate specializing in PCB design, embedded systems, and hardware development. I design reliable, manufacturable PCBs using KiCad, Altium and Eagle CAD, taking p... Read more

I am an Electronics Engineering undergraduate specializing in PCB design, embedded systems, and hardware development. I design reliable, manufacturable PCBs using KiCad, Altium and Eagle CAD, taking projects from schematic capture to production-ready manufacturing files. My expertise includes: • Single-layer and multilayer PCB design • Schematic capture • STM32, ESP32, Arduino hardware • Power supply and battery management circuits • Analog and digital circuit design • IoT hardware development • LTspice circuit simulation • Design optimization for manufacturability I deliver complete design packages including: ✔ Project files ✔ Gerber files ✔ Drill files ✔ BOM ✔ Pick & Place files ✔ Assembly drawings My goal is to create reliable, efficient, and production-ready hardware tailored to each client's requirements.

I am an embedded systems engineer specializing in KiCad PCB design, ESP32 and STM32 firmware development, and Python hardware automation tools. I design complete IoT systems from schematic to manufact... Read more

I am an embedded systems engineer specializing in KiCad PCB design, ESP32 and STM32 firmware development, and Python hardware automation tools. I design complete IoT systems from schematic to manufacture-ready PCB — not just layouts that look good on screen. My real project experience includes HomeNode — a full wireless smart home system designed entirely from scratch. This included 4-layer KiCad PCB design for sensor nodes, mains-powered actuator nodes, and a central hub, with proper power management, DFM-ready Gerbers, BOM, and CPL files for turn-key assembly at PCBWay. I deliver clean, documented, manufacturable work. Message me to discuss your project before ordering

I design mechanical parts and assemblies for working hardware: mechanisms, mounts and 3D-printed prototypes. When a project needs embedded control or an interface, I can connect the CAD work with ESP3... Read more

I design mechanical parts and assemblies for working hardware: mechanisms, mounts and 3D-printed prototypes. When a project needs embedded control or an interface, I can connect the CAD work with ESP32 firmware and control software. SELECTED WORK • Robot basketball: designed the shooter and its placement in SolidWorks and led an eight-person team to first place. The portfolio shows the CAD, prototype and competition build. • Active spoiler: combined mechanical CAD and aerodynamic analysis with ESP32 firmware, servo calibration and a React control dashboard. • Vandi fuel-cell robot: contributed mechanical packaging, AI, simulation, control algorithms and the control front end in a three-person project graded A. Teammates owned fuel chemistry and PCB/BMS design. PROJECTS YOU CAN START WITH 1. A part or assembly modeled around your existing components and dimensions. 2. A mounting or fit problem that needs a practical CAD revision and prototype iteration. 3. A mechanism that needs ESP32 actuator control and a simple demonstration or test interface. WHAT YOU RECEIVE We define the scope and acceptance checks before the design work. Handover can include native SolidWorks files, agreed exchange/print formats, AutoCAD drawings, assembly notes, source code and build/test instructions, depending on the milestone. I am a Hong Kong-based Robotics Systems Engineer and PolyU Mechanical Engineering graduate. At Stairio I contributed to ESP32-P4 camera firmware and hardware control, and built the Unreal Engine 5 software twin with 610 automated tests. I also have four years of independent engineering and software project work. I communicate fluently in English, Cantonese and Putonghua. Share your sketches, photographs, CAD, component dimensions and required function; we can define the next buildable step.

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 and Electronics Engineer focused on PCB design, embedded hardware, firmware, motor control, and product prototyping. I design complete electronic systems from schematic and c... Read more

I am an Embedded Systems and Electronics Engineer focused on PCB design, embedded hardware, firmware, motor control, and product prototyping. I design complete electronic systems from schematic and component selection through PCB layout, manufacturing files, bring-up, testing, and firmware integration. My work includes STM32 and ESP32-based systems, high-current motor drivers, BLDC motor control, CAN/CAN-FD communication, USB, UART, sensor interfaces, power electronics, and IoT devices. I have hands-on experience designing and manufacturing multi-layer PCBs and debugging real hardware, not just simulations. I work with tools including KiCad, EasyEDA Pro, STM32CubeIDE, STM32CubeMX, and Arduino IDE. Services I can provide include: • Schematic design and circuit review • PCB layout and routing • BOM creation and component selection • STM32 and ESP32 hardware design • Embedded C/C++ firmware • CAN, CAN-FD, UART, SPI, I2C, USB and sensor integration • Motor driver and power electronics design • Design-for-manufacturing review • Prototype bring-up and debugging • Gerber, BOM and manufacturing file preparation I focus on practical, manufacturable designs with attention to reliability, component availability, thermal performance, current handling, signal integrity, and maintainability. I am also the founder of Eonix Systems, where I work on custom electronics, embedded systems, PCB design, and product development.

I am an Electrical and Embedded Systems Engineer specializing in PCB Design, IoT Development, Smart Energy Solutions, and Electronic Prototyping. I have experience designing professional schematics an... Read more

I am an Electrical and Embedded Systems Engineer specializing in PCB Design, IoT Development, Smart Energy Solutions, and Electronic Prototyping. I have experience designing professional schematics and PCB layouts using KiCad and Altium, as well as developing embedded systems with Arduino and ESP32 platforms. My expertise includes circuit design, sensor interfacing, automation systems, circuit simulation, and technical documentation. I transform ideas into functional electronic systems for academic, research, and industrial applications. Whether you need a custom PCB, an embedded system prototype, or technical support for your project, I am committed to delivering reliable, organized, and industry-standard solutions.

I help product developers and small businesses turn electronic concepts into practical, manufacturing-ready PCB designs. My capabilities include schematic capture, component selection, PCB layout, de... Read more

I help product developers and small businesses turn electronic concepts into practical, manufacturing-ready PCB designs. My capabilities include schematic capture, component selection, PCB layout, design review, and production-file preparation using KiCad, EasyEDA, and Fusion 360 Electronics. I specialise in ESP32 and microcontroller-based hardware, IoT devices, sensor interfaces, communication circuits, control systems, and power-supply integration. I have hands-on experience taking designs beyond the CAD stage, including ordering assembled PCBs, testing prototypes, troubleshooting hardware, and improving designs based on real test results. My services include: • Schematic capture and PCB layout • ESP32 and embedded-hardware design • PCB review and design improvement • Component selection and BOM preparation • Gerber, drill, pick-and-place, and assembly files • Design-for-manufacturing checks • Prototype troubleshooting and revision I prioritise clear communication, practical engineering decisions, component availability, manufacturability, and organised project documentation. If you have a product idea, existing schematic, or PCB that needs improvement, send me your requirements and I will assess the most effective path forward.

Hello! I am a Mechanical and Production Engineering student with hands-on experience in CAD design, product development, and engineering problem-solving. I specialize in transforming ideas into manuf... Read more

Hello! I am a Mechanical and Production Engineering student with hands-on experience in CAD design, product development, and engineering problem-solving. I specialize in transforming ideas into manufacturable products using SolidWorks. My experience includes 3D part modeling, assemblies, technical drawings, sheet metal design, design for manufacturing (DFM), reverse engineering, and prototype development. Alongside mechanical design, I have experience in embedded systems and IoT projects using Raspberry Pi Pico, Arduino, and ESP32. This allows me to bridge mechanical design with electronics when developing complete products. I am passionate about creating clean, manufacturable designs that reduce production costs while maintaining functionality. My services include: • 3D CAD Modeling • Mechanical Design • Product Development • Engineering Drawings • Assembly Design • Sheet Metal Design • Reverse Engineering • Design for Manufacturing (DFM) • Prototype Design • SolidWorks Simulation (Learning & Growing) I believe in clear communication, timely delivery, and continuous improvement. Whether you need a concept turned into a production-ready model or modifications to an existing design, I am ready to help.