Project Management I am primarily an electrical systems engineer. I have experience managing large projects/programs including working with different teams to provide whole system solutions. This translates to project management where I can lead different people and groups toward a single goal. Hardware I have experience designing circuits and PCBs. I have designed constant current sources, motor controls, and various microcontroller devices. I do PCB work in KiCAD. Software/Firmware I have experience in C/C++ writing firmware either directly in C++ or using Arduino IDE. Most of my experience has been with ESP32, but I have also worked with TI and STM micros. 2D/3D CAD Primarily NanoCAD and FreeCAD now, but I originally learned using AutoCAD and Fusion 360. I can do 2D draft work and 3D designs for product drawings and 3D printable files. I can also prototype using my own 3D printer. I can personally take a project from the idea phase through requirements and prototyping to finalizing a design for manufacturing PCB and ordering parts. If I have trouble or expect to not meet deadlines, I make sure this is known, and I do not attempt work I know will leave you with an inferior end product.

I am an chinese architect, and I can provide some service about chinese and design. About chinese, it could be some translation, reading or something not illegal. And about design, it could be architecture design or landscape design.

I build embedded systems that survive real-world conditions—not just lab prototypes. With 3+ years bridging hardware design, firmware development, and field deployment, I deliver IoT and industrial monitoring solutions that are reliable, maintainable, and production-ready. My expertise spans from PCB bring-up and sensor integration to firmware optimization and remote telemetry pipelines. I’ve deployed systems in extreme environments (remote maritime zones, off-grid health tech, satellite telemetry), where failure isn’t an option and uptime is non-negotiable. 🚀 Why Work With Me? ✅ Hardware-Aware Firmware: I don’t just write code—I validate it against real schematics, timing diagrams, and power constraints. No more “works on bench, fails in field.” ✅ End-to-End Ownership: From KiCAD PCB layout → ESP32/IPC firmware → ModBus/CAN integration → NodeRED/Python telemetry dashboards. ✅ Field-Proven Reliability: Designed & deployed systems operating in high-humidity, temperature-varied, and off-grid conditions with > 90% operational uptime. ✅ Transparent & Proactive: Daily technical updates, clear documentation, and early risk flagging. I treat your project budget like my own. 🛠️ What I Deliver & Typical Timelines 🔌 ESP32/IoT Firmware & Sensor Integration (1-2 Weeks) • Custom drivers for I2C/SPI/UART sensors, GPS, cellular modems • Power optimization (deep sleep, interrupt-driven architecture) • OTA update pipelines & secure provisioning 📡 Industrial Comms & Telemetry Systems (2-3 Weeks) • ModBus RTU/TCP, CAN bus, Ethernet/Serial gateway implementation • Data pipeline setup (NodeRED, Python, MQTT, cloud dashboards) • Protocol translation & error-handling for noisy/interference-prone environments 🖥️ Hardware Bring-Up & PCB-to-Firmware Integration (2-4 Weeks) • Schematic review, pin-mapping, power sequencing validation • Bootloader, peripheral init, and signal integrity debugging • Lab-to-field transition: calibration, stress testing, documentation 📊 Test Automation & Data Processing (1-2 Weeks) • Python scripts for sensor data logging, calibration, and waveform analysis • Automated test benches for production validation & QA 🔧 Tech Stack • Hardware: ESP32, Raspberry Pi, Industrial PCs, KiCAD, FreeCAD • Firmware/OS: C/C++, ESP-IDF, Arduino, Linux (Debian/Raspbian), Python • Comms: ModBus RTU/TCP, CAN, MQTT, SPI, I2C, UART, Ethernet, VHF/AIS • Tools: Logic Analyzers, Oscilloscopes, Git, NodeRED, Python (NumPy/Pandas) 💡 Ready to build something that actually works in the field? Message me with your project scope. I’ll provide a technical assessment and clear next steps within 24 hours. Keywords: Embedded Systems Engineer, ESP32 Firmware Developer, IoT Hardware Engineer, ModBus CAN Integration, PCB Bring-Up Specialist, Industrial Telemetry, Field-Tested Firmware, Python Hardware Automation, Remote Monitoring Systems, KiCAD PCB Design, Sensor Integration, NodeRED Data Pipeline, Firmware Debugging, Hardware-Software Co-Design

I want to help create engaging 3D Models and 2D Illustrations that make your ideas come to reality! I'll help make a tangible drawing, render, or animation to better communicate and express your ideas to others or to simply enjoy for yourself! Send me your idea, any reference material that may apply, and some specifics you want covered, and we can discuss making your idea come true!

𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 & 𝗗𝗮𝘁𝗮 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝘄𝗶𝘁𝗵 𝗮 𝗽𝗮𝘀𝘀𝗶𝗼𝗻 𝗳𝗼𝗿 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻, 𝗶𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝘁𝗼𝗼𝗹𝘀, 𝗮𝗻𝗱 𝗲𝗹𝗲𝗰𝘁𝗿𝗼𝗻𝗶𝗰 𝗱𝗲𝘃𝗶𝗰𝗲𝘀 — I design smart embedded systems and build custom scraping solutions that automate workflows, extract clean data, and power decision-making. My work combines low-level software and firmware coding and Python automation for data processing, from FreeRTOS-based microcontroller projects to OCR-enhanced scraping pipelines and API integrations. Whether you're building a connected device or need structured data from the web, I deliver scalable, efficient, and well-documented solutions. 💡 My background My 3+ years experience includes: • Developing embedded software for microcontrollers (STM32, ESP32, PIC, etc.) • Designing and testing PCBs for prototypes and production • Building IoT systems with wireless communication and cloud connectivity • Integrating hardware with desktop applications and industrial equipment • Collaborating in agile environments and leading technical delivery 💡 What I bring to your project: ❶ Embedded Systems Engineering: • Firmware development in Embedded C, C++, and Assembly • Microcontrollers: STM32, ESP32/ESP8266, Arduino • Real-time systems with FreeRTOS • PCB design, schematics, and component sourcing - using KiCad and EasyEda • Basic wearable (STL and FreeCad source files) • Prototyping and debugging hardware/software integration ❷ Data Scraping & Automation: • Web scraping with Python (BeautifulSoup, Selenium, Playwright) • OCR and intelligent text extraction (Tesseract, Easyocr, Regex) • Data cleaning, enrichment, and CSV/Excel automation • API integration (Google Places, Google Vision, Yelp) • GUI development with Tkinter for user-friendly tools • Excel Automation (vba, power query) 💡 Why work with me? I love solving technical challenges and building smart tools that save time and deliver value. Whether you're developing a connected device or need clean, structured data from the web, I’ll bring precision, creativity, and reliability to your project. Let’s build something great together!

Hi, I’m an Embedded IoT & Edge AI Engineer specializing in fully offline wearable tracking and monitoring systems. I build end-to-end Proof-of-Concept prototypes using ESP32 platforms, long-range LoRa communication, precise GNSS positioning, local TinyML voice recognition, digital compass sensor fusion, and custom 3D-printed enclosures — all without any reliance on Wi-Fi, cellular, or cloud services. I deliver complete solutions from hardware architecture and component selection to robust firmware, on-device AI, and field-ready mechanical designs. My focus is power-efficient, reliable prototypes that perform in challenging environments where connectivity fails. What sets me apart Hands-on expertise across the full stack: integrated ESP32-S3 + LoRa + multi-GNSS boards, accurate geo-bearing calculation with magnetometer fusion, optimized TinyML keyword spotting on MCUs, and practical wearable enclosure design. I provide documented, flashable prototypes with remote deployment support. 💯 My Core Expertise 💯 Embedded Hardware & IoT Platforms - Recommendation of off-the-shelf ESP32 / ESP32-S3 + LoRa (SX1262) + multi-GNSS boards available from major retailers - Sensor integration (I2C/SPI/UART), power management, battery charging, and OLED displays - Power-optimized firmware using deep/light sleep for extended wearable battery life Offline Long-Range Tracking - Base station broadcasts GPS coordinates via direct LoRa P2P - Wearable receives data, combines with own GNSS position and digital compass - Real-time bearing calculation and directional arrow display on small screen - Efficient packet design, airtime tuning, and range optimization Edge AI & Offline Voice Recognition - TinyML / Edge Impulse keyword spotting deployed locally on ESP32-S3 - I2S microphone integration for on-device command recognition - Specific voice phrases processed entirely offline with no internet required - Quantized models optimized for memory and inference speed Positioning & Sensor Fusion - GNSS parsing and coordinate handling - Magnetometer (QMC5883L / LSM303) calibration and tilt compensation - Geodetic bearing formulas and relative heading for accurate compass arrow - Smooth display rendering with proximity indicators 3D CAD Enclosure Design - Professional modeling in FreeCAD or Fusion 360 for lightweight wristbands - Integrated elastic strap slots, component mounts, display windows, and port cutouts - Print-ready .STL files with proper tolerances and assembly considerations Firmware, Prototyping & Deployment - Modular C/C++ firmware (PlatformIO / Arduino / ESP-IDF) with clear architecture - Complete BOM, wiring diagrams, and field testing protocols - Remote guided flashing, configuration, and verification sessions for GPS, LoRa, compass, voice, and power performance Industries & Applications Wearable Technology • Offline Asset Tracking • Remote Field Operations • Industrial Safety Monitoring • Resilient Edge IoT Systems • Custom Battery-Powered Sensor Devices 💯 Why Work With Me? 💯 I deliver complete, tested prototypes with full documentation, calibration guides, and remote support. Clear communication and professional process from hardware recommendation to working field device. I combine deep embedded expertise with practical Edge AI and mechanical design for reliable real-world results. Let’s connect and build robust offline IoT systems that perform when connectivity cannot be trusted. Message me to discuss your project. 🔥 Embedded Systems, ESP32, ESP32-S3, LoRa, SX1262, GNSS, GPS, TinyML, Edge AI, Keyword Spotting, Offline Voice Recognition, Digital Compass, Magnetometer, Sensor Fusion, Bearing Calculation, OLED, 3D CAD, FreeCAD, Fusion 360, STL Files, Wearable Enclosures, C++, Arduino, PlatformIO, RadioLib, Power Optimization, Battery IoT, Prototyping, Field Testing, Remote Deployment

I'm an innovative Computer Engineer with skills in Computer, Embedded, and Electronic Design. Experienced in developing IOT systems, and programming them. Let's make your ideas come to reality. Services Offered: - Embedded Hardware (Arduino, AVR, ESP32, CH32, STM32, Nordic) - Schematic Design / Modification / Review - BOM/Component Selection - PCB Design / Modification (KiCAD, EasyEDA) - Embedded Firmware (Arduino, PlatformIO, ESP-IDF, STM32) I also offer these services: - Web App Development (Node.JS, REST, Firebase) - 3D Parametric Enclosure/Part Modeling and Design (FreeCAD, Autodesk Fusion)

Expert in digitalization of Manufacturing & Quality Control workflows with 10+ years of industrial experience, ready to support you through your Industry 4.0 Digital Transformation. Specialized in: - AI & Analytical 3D Data Processing 🤖 - Computer Vision for Manufacturing 🔍 - Manufacturing Domain Data Science & RAG Workflow Automation 📊 - Advanced Metrology & Sensors, Data Visualization 📟 - Full Stack Cloud Dev, MLOps & Industrial IoT ☁️ Deep skills in: - PyTorch, Keras, OpenCV, Open3D, FreeCAD, CadQuery, Pandas, NumPy, Scikit-learn 🐍 - CNN, VAE, ONNX, RAG, Point Clouds, Meshes, CAD/CAM 📐 - Modern C++, Python, TypeScript, SQL/NoSQL, MongoDB 🧮 - Git, Docker, Grafana, Ollama, CI/CD, Linux OS 💻 - Linear Algebra, Statistics, Metrology, ISO Standards 🛠️

I am a hands-on maker with over two years of experience in 3D printing, product design, and electronics. My expertise lies in transforming ideas into tangible prototypes through Arduino-based projects and rapid product development. I excel in guiding students and clients in building real-world applications in electronics and robotics, offering support from concept to testing. My strong troubleshooting skills, coupled with a solid foundation in wiring, soldering, and lab equipment management, ensure efficient and high-quality outcomes. Whether you need help with design in Fusion 360, material selection, or technical support, I am here to turn your vision into reality. Let's collaborate to bring your project to life and innovate together.

I help turn ideas into real, functional products by combining deep technical knowledge with hands-on prototyping capabilities. Whether you're a startup founder validating a concept, a product team seeking rapid iteration, or a company needing technical execution from idea to physical form—I can deliver. With a multidisciplinary background in electronic design, mechanical engineering, firmware development, and cloud-based IoT systems, I specialize in full-cycle product development—from initial concept and consultation through to working, tested prototypes. 🔧 What I Do Electronics Design & Embedded Systems I design custom circuit boards optimized for rapid prototyping, testing, and production: Schematic capture and PCB layout using industry-standard EDA tools Prototyping with ESP32, STM32, and other microcontrollers Integration of various sensor types: environmental, motion, gas, proximity, etc. Firmware development in C/C++ (ESP-IDF, Arduino, etc.) Communication protocols: UART, I2C, SPI, BLE, Wi-Fi, LoRa, MQTT Power optimization, battery management, and low-power IoT design Mechanical Design & Structural Prototyping CAD modeling for enclosures, brackets, mounts, and device housings Structural and ergonomic design for usability and durability Material selection for strength, weight, thermal, or environmental requirements CNC machining of plastics, wood, and aluminum for real-world part testing Precision laser cutting for enclosures, templates, and stencil designs 3D printing (FDM & SLA) for rapid iteration, fit-checks, and custom parts Manufacturing & Fabrication Capabilities I maintain a fully equipped prototyping lab with capabilities for: In-house PCB fabrication and Pick & Place assembly Multimaterial 3D printing (rigid, flexible, translucent) Laser cutters for plastic/acrylic/wood sheet cutting and engraving CNC mill for detailed mechanical components Electronics workbench with full debugging, measurement, and testing tools This setup allows for fast, iterative builds and adjustments without long waits or reliance on external shops. Cloud, Data & Machine Learning Many modern products involve a software or cloud component. I bring experience in: Building cloud-connected IoT products Cloud architecture for real-time data collection and device management Machine learning model training for edge or cloud-based inference ML deployment and tuning for applications like predictive maintenance, anomaly detection, and smart sensing 👥 How I Work Solo or Team Delivery I can deliver entire projects myself, or I can manage a cross-functional team of engineers to execute complex, multi-stage development. I maintain a professional network of collaborators specializing in: High-speed PCB design Firmware and embedded development Mechanical design & stress simulation Data science and cloud deployment DFM (Design for Manufacturing) and productization Rapid Iteration and Prototyping Mindset Speed is often critical—especially in early-stage product development. I believe in: Building fast, testing early, and refining with user feedback Designing for manufacturability and scale from day one Using modular and reusable systems to reduce technical debt Open Source and Tooling I favor open-source tools, frameworks, and platforms wherever possible: KiCad, FreeCAD, PlatformIO, ESP-IDF, Python, MQTT, TensorFlow Lite Git-based workflows for collaboration and reproducibility Cloud tools like AWS, GCP, Firebase, or custom backend APIs 💡 Project Types I Support Smart sensors and IoT device development Environmental monitoring systems Wearables and portable electronics Home automation and smart appliances Robotics, automation systems, and control panels Product prototypes for investor/demo readiness Edge AI prototypes with real-time decision-making 🧰 Prototyping Lab Setup I operate out of a fully equipped, small-scale lab tailored for product development: Electronics Workbench: Oscilloscopes, logic analyzers, multimeters, soldering stations PCB Fabrication: Etching, drilling, and assembly Pick and Place Machine: For small-batch SMD PCB population 3D Printing: FDM for structural parts, SLA for precision detail Laser Cutting: Fast sheet prototyping in acrylic, wood, and composites CNC Milling: Multi-material support for enclosures, PCBs, mechanical parts Firmware flash/debugging, battery profiling, temperature/humidity testing 📦 Why Work With Me? I bridge the gap between concept and physical reality I understand both hardware and software, which reduces friction and increases speed I take ownership of product outcomes, not just technical deliverables I’ve built dozens of functional prototypes across domains including smart home, medical, consumer electronics, and industrial automation 📬 Let’s Talk If you’re looking to bring a product idea to life, or need an experienced technical partner to lead prototype development—let’s connect. Whether you need a single prototype, a proo