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I’m a PCB design | Reverse PCB Design Engineer specializing in reconstructing, analyzing, and improving existing circuit boards when original documentation is missing or incomplete. Over the past 10+ years, I’ve reverse-engineered dozens of commercial products ranging from consumer electronics to industrial controllers helping clients recreate legacy hardware, correct design flaws, and prepare boards for manufacturing. Work History & Experience •Rebuilt complete schematic and PCB files from physical boards for multiple clients in the U.S. and Europe •Successfully reverse-engineered 4-layer and 6-layer RF boards, including WiFi, Bluetooth, and GPS modules •Restored obsolete industrial control boards where BOM and Gerbers were no longer available •Converted entire product families from old proprietary boards into modern Altium or KiCad designs •Helped several startups recover and redesign hardware after losing original engineering teams •Reverse-designed battery-powered IoT devices, optimizing power paths, charging circuits, and safety features •Translated raw PCB scans and photos into fully manufacturable Gerber and ODB++ files •Conducted board validation, corrected routing issues, and improved manufacturability for mass production •Supported clients in factory communication, DFM review, stack-up selection, and production testing Core Skills •PCB reverse engineering (from 1-layer to 8-layer boards) •Schematic reconstruction from physical PCB •Net tracing, component identification, and footprint rebuilding •Recreating BOM with equivalent components •Altium, KiCad, Eagle, OrCAD •High-speed and RF routing reconstruction •Power supply and charger circuit analysis •Legacy hardware modernization •EMC/ESD improvement and reliability upgrades •Gerber recreation for manufacturing What I Can Deliver •Complete schematic + PCB files from any board •Clean, readable, and logically organized circuits •Rebuilt BOM with part numbers and sourcing links •Improved design ready for prototyping or mass production •DXF/STEP data for enclosure designers •Manufacturing package (Gerber, drill, pick-and-place, PDF docs) Why Clients Choose Me •Hands-on experience with 100+ boards across multiple industries •Ability to reverse-engineer boards without original documents •Fast, precise reconstruction—even for dense multilayer layouts •Professional communication and clear reporting •A strong record supporting real production builds

Hi! I'm Chanaka, a Robotic artist with 7 years of experience in the Electronic industry. By profession, I am a Robotic and Automation Engineer with a completed Bachelor's degree and lots of successful projects behind. Experienced at:- ✅Project Development and Prototyping ✅IOT Systems Robotics, and Automation Projects ✅Microcontroller Programming with Firmware Developments ✅PCB Design ✅3D and 2D Design ✅3D Printing ✅UAV Design and Programming Robotics is a new field of technical engineering that involves the basic steps of robotics concept, design, manufacture, and operation. The goal of robotics is to create intelligent machines that can assist humans in various ways in their daily activities. Robotics can take many forms. A robot can be human-like or nearly so, or it can be in the form of a robotic application, such as robotic process automation. It implements the way humans interact with software to perform repetitive rule-based tasks. However, science fiction author Isaac Asimov is credited with being the first to use the term in the Oxford English Dictionary in the 1940s. Today, industrial robots and many other differently programmed robots are used to perform repetitive tasks. They can be robotic arms, robotic exoskeletons, or traditional humanoid robots. Industrial robots are huge, and robotic arms are also used by manufacturers and stores such as those owned by Amazon, Devon, Best Buy, and others. For this robotics technology, computer programming and algorithms, remotely controlled manipulators, actuators, control systems – action, processing, and perception – real-time sensors and an element of automation help inform what a robot or robotic system is doing. The field known as machine learning and learning robotics are intertwined. Robotic learning is the study of techniques and tools that can impart new knowledge or skills to a robot through machine learning algorithms. Some of the applications explored by robotic learning include grasping objects, recognizing those grasped objects, classifying objects, and even interacting with human peers by recognizing and responding to linguistic and sensory gestures. Learning can occur through self-exploration or through software guidance by a human operator. In order to learn, intelligent robots must gather facts daily through human input or sensors. Then, the robot's processing unit will compare the newly acquired data with the previously stored information and perform its own programming based on the acquired data and predict the course of action based on the output. However, it is important that we understand that a robot can only solve the problems it is built to solve. It does not have creative general analytical abilities like a human. Many industries are interested in robotic systems because they can increase accuracy, reduce costs, and increase human safety. In fact, safety can be cited as one of the biggest benefits of robotics, as many dangerous or unhealthy environments are beyond the reach of humans. Examples are nuclear industry, mining, and excavation work can be pointed out. However, the field of robotics has evolved tremendously with several technological breakthroughs. One is the rise of big data, which offers more opportunities through a language that is complex enough to build programming capabilities into robotic systems. Another is the use of new types of sensor devices and tools to monitor temperature, air pressure, light, motion, and many other environmental aspects. All of this serves to give rise to more sophisticated and sophisticated robots for many uses, including health, security, and human assistance. Although the field of robotics is limited in terms of programming and capabilities, nowadays it can be seen as very useful and a great leap in technology. Moreover, I have potential knowledge about: • Python • Solidwork • C / C++ / C# • Processing • Thingsboard and Blynk I am a creative person with good technical and personal skills and competencies. A self-motivated, organized, responsible, diligent person who wants to reach the best result. I am attentive to client's needs and constantly assess that the design continues to meet their needs. Please feel free to contact me for further cooperation! Thank you for your time in reviewing this. Thank you Chanaka Prasad

Are you looking for a freelancer creating accurate and reliable 🔴 Circuits schematics, layouts, and simulations as well as 3D CAD models 🔴? As a mechatronic engineer, I have an electrical and mechanical engineering background. I am introducing myself and my services as a freelancer in the field of electronic circuits and PCB design. Being a mechatronic engineer helps me to integrate both electrical and mechanical considerations into my designs, and that's what sets me apart from other designers. My expertise lies in using: • Autodesk Eagle • Altium designer • EasyEDA • KiCad • Proteus To generate accurate and reliable: • Schematics • PCB layout design • 3D models And I will provide you with: • Detailed PDF files • Images • DXF files • Bill of Materials (BOM) That clearly illustrates the design and its components, and this will not only help you to understand the design better but also allow for quick and efficient manufacturing processes. I can help you design your ⚫ 3D model enclosure ⚫ for your PCB or consider this aspect while designing the PCB itself. This results in a more integrated and optimized solution that meets both your electrical and mechanical requirements. As a new freelancer on Upwork, I am eager to take on any job at the 🔴 most reasonable cost 🔴 to grow on this platform and receive valuable feedback. I am committed to building long-term relationships with my clients by prioritizing clear communication, timely delivery, and customer satisfaction. I am open to feedback and willing to make adjustments to ensure complete satisfaction with my work. I am eager to establish a lasting partnership. If you are looking for a reliable freelancer in the field of electronic circuits and PCB design, I would be honored to work with you. Please don't hesitate to contact me to discuss your project in more detail and to receive a personalized quote.

3D Industrial Designer & Product Designer & PCB Designer | Fusion 360 · SolidWorks · Rhino · KeyShot | Electronics Enclosure Design | Medical Device Designer | Wearable Device Designer | Mechanical Engineering and Mechanical Engineer | DFMA | Photorealistic Rendering | Startup Product Designer and Industrial Design I take hardware products from concept sketch to manufacturing ready CAD without the redesign cycles that push launch timelines back by months. If your product is going to a toolmaker, a contract manufacturer, or a regulatory submission, it leaves my desk ready to act on, not ready to revise. I work with hardware startups, consumer electronics brands, medical device companies, and wearable device teams. The common problem across all of them is the same: engineering that looks complete on screen but breaks down the moment it reaches production. Draft angles missing. PCB clearances off. Wall thickness inconsistent. BOM not tied to the model. I solve that problem at the concept stage, before it becomes a tooling invoice. WHO I WORK WITH Hardware startups need a product design partner who is thinking about manufacturing from the first sketch, not after the prototype comes back broken. The startup that brings me in early saves three to five weeks on a typical product launch timeline. The startup that brings me in after the prototype fails pays for two development cycles instead of one. Consumer electronics brands need DFM ready CAD that does not come back from the toolmaker with a correction list. I deliver electronics enclosure geometry toleranced for connector positions, mounting boss alignment, and thermal management from day one, not corrected after a failed first prototype. Medical device design teams need DFMA applied at the concept stage, technical drawings with full GD&T, and a Bill of Materials that is production ready before the model is finalized. I do not retrofit manufacturing discipline onto a finished model. I build it in from the first feature. Wearable device companies need mechanical design precision, electronics enclosure engineering, and ergonomic geometry working together in a single manufacturing ready package. I have delivered wearable device housings where the PCB fit, the user interface geometry cleared, and the toolmaker had zero queries on receipt of the files. ELECTRONICS ENCLOSURE DESIGN AND PCB ENCLOSURE Every electronics enclosure I deliver is built around the PCB it houses. I start with the PCB mechanical envelope, work outward through the user interface geometry, and close with a DFM ready CAD model your contract manufacturer can act on the same day they receive it. PCB enclosure geometry designed without mechanical discipline produces fitment problems at assembly. Connector positions off by half a millimeter. Mounting bosses that strip on first assembly. Thermal paths blocked by the housing geometry. My electronics enclosure design process eliminates those problems before the first prototype is cut. INJECTION MOLD DESIGN AND DESIGN FOR INJECTION MOLDING Design for injection molding is not a checklist I run at the end of a project. It is a first principle I apply from the first feature of every model. Draft angles, consistent wall thickness, gate position logic, parting line geometry, and sink mark prevention are built into my concept design workflow, not added when the model is already finished. My DFMA process catches production problems at the CAD stage before they become tooling changes at $800 to $2,000 per engineering change order. DFM ready CAD from my desk means your injection mold design goes to the toolmaker with zero surprises and a technical drawing package that answers their questions before they ask them. MANUFACTURING READY CAD AND TECHNICAL DRAWINGS Manufacturing ready CAD is not a clean 3D model. It is a 3D model where every feature has been evaluated against the manufacturing process, draft for injection molding, flat patterns for sheet metal, print orientation for rapid prototyping, and a drawing package that includes full GD&T tolerancing, surface finish callouts, material specifications, and revision control formatted to the standard your contract manufacturer expects. I deliver manufacturing ready CAD and technical drawings as an integrated package. The model and the drawing are in sync. There are no version control problems between them because they are developed together, not separately. BILL OF MATERIALS AND PRODUCT DEVELOPMENT A complete Bill of Materials is the commercial bridge between your CAD model and your supply chain. Every product development engagement I take to a launch milestone includes a structured BOM with manufacturer part numbers, approved alternates, quantities, and cost flags on long lead components. The BOM is built in parallel with the manufacturing ready CAD so your sourcing team can start moving while the model is still being finalized. Let's build something worth manufacturing. Message me and let's talk.

I am a PCB Design Engineer specializing in schematic design, PCB layout, and hardware debugging for real-world electronics systems. I can help you with: • Custom PCB design (KiCad / EasyEDA) • Schematic design from idea or rough concept • PCB layout (2-layer / 4-layer / 6-layer boards) • Circuit debugging and optimization • Component selection and BOM creation • ESP32 / Arduino / microcontroller-based system design I have hands-on experience building: • Wireless communication systems (LoRa, RF) • Sensor-based embedded systems • Battery-powered and low-power devices • Motor control systems with fail-safe mechanisms I focus on designing reliable, manufacturable, and cost-effective PCBs — not just visually clean layouts. I have also developed multiple patented systems in embedded and autonomous technologies, which reflects my approach to solving problems at a system level, not just at circuit level. If you need a working product, not just design files, I can help turn your idea into a reliable hardware solution.

Welcome to my profile! I am a Mechatronics Engineer with a solid background in PCB Design, electronics design, Arduino/ESP32 development, and 3D mechanical modeling. As a PCB Designer and CAD Designer, I specialize in creating fully functional prototypes by seamlessly integrating electronic systems with mechanical structures, delivering practical and innovative solutions for real-world applications. Why Choose Me? Integrated Mechatronics Expertise: I combine electronics, embedded programming, and mechanical design to deliver complete end-to-end prototypes. Versatile Microcontroller Knowledge: I work confidently with Arduino, ESP32, Raspberry Pi, and other embedded platforms for a wide variety of applications. Professional CAD & PCB Design: Proficient in Kicad, EasyEDA, SolidWorks, AutoCAD, and Fusion 360 for high-quality PCB and mechanical modeling. Prototype-Ready Solutions: I design, simulate, and troubleshoot both electronics and mechanical components for seamless hardware integration. Industry Experience: From automotive and static equipment to architectural designs, I have experience across multiple engineering sectors. Client-Focused Approach: I aim to understand your goals and bring your ideas to life with a practical and results-driven mindset. My Services: PCB and Circuit Design (EasyEDA, KiCAD) Arduino/ESP32/Raspberry Pi Programming Electronics Prototyping & Troubleshooting 3D Modeling and Mechanical Design (SolidWorks, Fusion 360, AutoCAD) Concept-to-Prototype Development Integration of Sensors, Actuators, and Control Systems IoT Hardware Design and Consultation I am highly enthusiastic about delivering robust, real-world solutions through my multidisciplinary background in electronics and mechanics. Whether you're developing a product from scratch or optimizing an existing design, I’d be excited to collaborate and contribute to your success. Let’s work together to bring your Electronics engineering ideas to life!