I have designed 30+ real-world components used in defence systems, DC fans, and kitchen appliances handling everything from design and simulation to fabrication and testing myself, so you get complete, working hardware solutions from one expert. I am an RF, PCB, and Embedded Systems Engineer with strong hands-on experience in building complete hardware products. I have worked on real-world RF systems including high-power amplifiers, transmitter-receiver designs, RF filters, and antenna systems for communication and defence-related applications. I specialize in RF design, antenna design and testing, wireless communication, and high-quality PCB design including multilayer boards using Altium Designer and KiCad. I also work on circuit design, analog electronics, RF filters and amplifiers, and embedded systems using STM32, ESP32, and Arduino. I have successfully delivered reliable, tested, and production-ready designs that perform well in real-world conditions. For large and challenging projects, I collaborate with a trusted team of highly skilled professionals, so we can deliver a complete, fully working product including hardware, software, and mechanical design all in one place. ✅ RF & Microwave Circuit Design ✅ RF System Design (Transmitter & Receiver) ✅ RF Front-End Design ✅ RF Power Amplifier Design (Low, Medium & High Power) ✅ LNA (Low Noise Amplifier) Design ✅ RF Filters Design (Bandpass, Low-pass, High-pass) ✅ Impedance Matching & RF Tuning ✅ Antenna Design (Patch, Monopole, Dipole, Custom) ✅ Antenna Simulation & Optimization ✅ Antenna Testing & Performance Measurement ✅ Wireless Communication System Design ✅ RF Signal Chain Development ✅ Frequency Planning & Spectrum Analysis ✅ PCB Design (Single Layer, Double Layer, Multilayer) ✅ High-Speed PCB Design ✅ RF PCB Layout & Controlled Impedance Design ✅ Schematic Design & Circuit Layout ✅ PCB Design using Altium Designer, KiCad & EasyEDA ✅ Gerber File Generation & Manufacturing Support ✅ Design for Manufacturing (DFM) & Assembly (DFA) ✅ PCB Debugging & Optimization ✅ Electronic Circuit Design ✅ Analog Circuit Design ✅ Amplifiers & Signal Conditioning Circuits ✅ Sensor Interface Circuit Design ✅ Power Electronics Circuit Design ✅ Hardware Troubleshooting & Debugging ✅ Embedded Systems Design ✅ Embedded Hardware Development ✅ Microcontroller-Based System Design ✅ Microcontroller Programming (STM32, ESP32, Arduino, AVR) ✅ Embedded C & C++ Development ✅ Firmware Development ✅ IoT Device Development (WiFi, LoRa, ESP32) ✅ Raspberry Pi-Based Projects ✅ FPGA Design & Development ✅ Verilog / VHDL Based Design ✅ Digital System Design on FPGA ✅ Simulation & Timing Analysis ✅ FPGA Prototyping & Testing ✅ Electromagnetic Simulation (HFSS, CST, ADS) ✅ Circuit Simulation (LTspice, PSPICE, MATLAB) ✅ EM & RF Co-Simulation ✅ Signal Integrity & EMI/EMC Analysis ✅ Hardware Prototyping ✅ Product Development from Concept to Prototype ✅ Functional Testing & Validation ✅ Performance Measurement & Optimization ✅ Test Results Analysis & Reporting ✅ Technical Writing (Engineering Reports & Documentation) ✅ Research Paper Writing (IEEE Format) ✅ Project Documentation & Reports ✅ RF & Electronics Content Writing ✅ Complete Product Design (Hardware + Embedded + RF + FPGA) ✅ Prototype to Production Support ✅ Real-World Testing & Field Validation ✅ Engineering Simulation & Optimization

I am an Embedded Systems & Product Development Engineer with hands-on experience designing and building real, battery-powered electronic products from concept to working prototype. My work focuses on embedded firmware, circuit and PCB design, power and battery systems, and system-level debugging. I help startups and companies turn ideas into reliable, testable hardware, not just demo code or isolated modules. I have worked in both research and industrial environments, including a robotics research internship in Taiwan and a product development role in Japan, where I contributed to the design and validation of smart, battery-operated devices. This background allows me to approach problems with a system mindset, understanding how firmware, power electronics, and wireless communication interact in real products. What I can help you with Embedded firmware development (ESP32, AVR, PIC, ARM) Battery-powered and low-power device design Circuit and PCB design review and debugging Bluetooth / Wi-Fi enabled IoT product Prototype development and performance validation System-level troubleshooting (power, noise, stability, runtime)

I design complete electronic products, from PCB hardware and embedded firmware to IoT telemetry and remote-monitoring systems. I help startups and engineering teams turn concepts into tested, manufacturing-ready designs. My services include: • Electronic product architecture and feasibility analysis • Schematic design, component selection, and PCB layout • Embedded firmware, drivers, board bring-up, and control systems • Sensor, motor, power, and wireless connectivity integration • IoT telemetry and remote-monitoring devices • Prototyping, troubleshooting, DFM/DFT, and manufacturing preparation I work with STM32, ESP32, nRF52/nRF53, Wi-Fi, BLE, LoRa, Zigbee, CAN, USB, and Ethernet. My primary tools include Altium Designer, KiCad, LTspice, Proteus, MPLAB X, and the STMicroelectronics ecosystem. Typical deliverables include schematics, PCB source files, Gerbers, BOMs, embedded source code, test results, and manufacturing documentation. I have contributed to more than 50 hardware projects for clients in the US, Europe, and Latin America, combining technical depth with clear communication and structured execution. Send me your requirements or existing design files, and I will help you define the most practical next development step. Keywords: IoT Development, PCB Design, Embedded Systems, Firmware, Altium Designer, KiCad, LTSpice, Flexible ad rigid PCB, STM32, nRF52/nRF53, ESP32, RF, BLE, Wi-Fi, LTE, AC/DC, DC/DC, Battery, BMS, DFM, DFT, Prototyping, Manufacturing Support, Firmware Engineering, Technical Project Management

Top Rated Plus, Registered Electrical Engineer with more than 9 years of professional experience in Electrical Engineering Design and Consultancy. My areas of expertise include Solar Energy System Design, MEP/ Electrical Design for Residential, Commercial and Industrial, Revit and CAD drafting, and design, 3D modeling, design and analysis, 3D Rendering, Electrical and Lighting Design, and Industrial and Residential CAD Layout. Have a deep knowledge of the following standards; NFPA 70, NFPA 72, NEC, AS/NZ Standard, ICAO Annex 14, Building Energy Codes. I want to combine my ability in engineering technical analysis and creativity to provide the highest quality service for my clients. Just reach out with any questions and opportunities. Project Portfolio: kineticvolts.com/projects Software and Tools: AutoCAD Revit Vertex BD Solidworks SketchUp Lumion, V-Ray 3DS Max NX Unigraphics Dialux HelioScope Aurorasolar OpenSolar COMcheck Bluebeam Services Offered: • CAD Drafting and Design • 3D Modeling, Analysis (FEA), Rendering • Electrical Drafting Services • Single Line Diagrams, Riser Diagrams, Grounding Plans • PV Solar Plan design - PV Permit set for Residential or Commercial in the USA • PV Roof Layout and Connection • Fire Alarm/Detection Design • Lighting Design (Interior, Exterior, Parking, Airports) • High Rise Building Electrical System • Electrical Panel, MCC, Switchgear, Switchboard • Fiber Optic Communication Network Design • Takeoff and Bill of Quantities • Production of As-built Drawings/Documentation • Substation equipment layout • EV / Electric Vehicle Charging Stations

Hi! I'm Dinoj Supunsara, a seasoned Robotics Engineer with 5 years of experience in the electronics industry. As a Research and Development Engineer specializing in software, electronics, and robotics, I've successfully spearheaded numerous projects and hold a Bachelor's degree in this dynamic field. ### My Expertise: - Industrial Project Development, Simulation and Prototyping - IoT and IIoT Systems, Robotics, and Automation Projects - Microcontroller-based Programming and Firmware Development - Custom PCB Design - 3D CAD modeling and 2D Design ### The Fascinating World of Robotics: Robotics merges cutting-edge technology with practical applications, aiming to create intelligent machines that assist humans in various ways. The field encompasses the design, manufacture, and operation of robots, which can range from human-like forms to robotic applications like process automation. Industrial robots are now integral to sectors like manufacturing and retail, enhancing efficiency and safety. ### The Intersection of Robotics and AI: Robotic learning is intertwined with machine learning, enabling robots to acquire new skills through algorithms. From grasping and recognizing objects to interacting with humans, robots learn through self-exploration or guided software. This continuous learning process involves gathering data through sensors and human input, allowing robots to make informed decisions. ### The Future of Robotics: Robots are revolutionizing industries by increasing accuracy, reducing costs, and enhancing safety. They perform tasks in hazardous environments, such as nuclear facilities and mining operations, which are beyond human capabilities. The integration of big data, advanced sensors, and sophisticated programming is driving the development of versatile robots for health, security, and human assistance. ### Technical Proficiencies: - C, C++ and Python - SolidWorks, SolidEdge - Simulation Webots, Gazebo, R-Viz - ROS - Arduino, STM32, Esp8266, NodeMCU,Thingsboard,Node-RED and Blynk I am a creative and technically skilled individual, dedicated to delivering the best results. I am attentive to clients' needs and ensure that my designs continually meet their requirements. Let's collaborate to bring your ideas to life! Thank you for your time, Dinoj Supunsara

I’m an experienced and passionate electronics engineer with 4+ years of practical expertise in hardware development, PCB design, circuit simulation, microcontroller programming, and robotics. I work on everything from basic electronics prototyping to complex, multilayer PCB and firmware design for commercial, academic, and industrial applications. My strength lies in designing end-to-end systems that combine intelligent firmware with robust and optimized hardware. Whether you need a simple circuit designed or a complete robotic solution built from scratch, I bring a comprehensive skill set that ensures performance, reliability, and scalability. What I Can Do for You 1) Custom PCB Design & Layout I design single- and multi-layer PCBs using EasyEDA, Altium Designer, and Proteus. Each layout is optimized for performance, manufacturability, and clean routing. I ensure proper DRCs, ground planes, and signal integrity — producing ready-to-order Gerber files with BOM and schematic documentation. 2) Circuit Design & Simulation Using NI Multisim, Proteus, and LTspice, I simulate analog/digital circuits to validate concepts before hardware testing. This helps minimize costly prototyping errors and ensures reliable, functional designs. 3) Microcontroller-Based Systems Development I develop firmware for controllers like Arduino, ESP32, and STM32 using Arduino IDE, PlatformIO, and STM32CubeIDE. My applications include sensor integration, real-time control, motor driving, and wireless communication — written in modular, optimized C/C++ code with complete documentation. 4) Robotics & Autonomous Systems I design intelligent robots for real-world use, education, and competition. One of my flagship builds is REAPER: 🚨 Reconnaissance Engaged Autonomous Patrol and Engaging Robot – A rugged 4WD robot equipped with real-time video surveillance, AI-based human detection, and autonomous patrol functions. REAPER integrates wireless control, onboard vision, and advanced control logic, designed for security, monitoring, and tactical applications. Other robotics projects include: i) Robotic Arms Controlled via EMG Signals – Interpreting muscle activity to control servo motion ii) Wireless ESP32 Rovers with Camera Modules – Live video, autonomous pathing, and remote control iii) Competition Bots – Line followers, edge detectors, balloon busters, and obstacle avoiders iv) Custom Controller Boards – Built-in L298N drivers, servo support, power regulation, and modular design 5) IoT Systems & Wireless Communication I build connected systems using ESP32/ESP8266 for smart automation, data logging, and wireless control. My solutions support WiFi/BLE, MQTT/HTTP APIs, OTA updates, and mobile-friendly interfaces. 6) Debugging, Optimization, and Documentation Need help fixing or enhancing your electronics project? I troubleshoot circuits, refine firmware, and optimize for power, thermal, and signal efficiency. Every project is delivered with clear documentation: schematics, BOMs, PCB files, and code comments. Tools, Platforms & Skills 1) PCB Tools: EasyEDA, Altium Designer, Proteus, NI Multisim, LTspice 2) Microcontrollers: Arduino (Uno, Nano, Mega), ESP32, ESP8266, STM32 3) Languages: C, C++, MicroPython 4) Frameworks/IDEs: Arduino IDE, PlatformIO, STM32CubeIDE, FreeRTOS (basic) 5) Protocols: I2C, SPI, UART, PWM, WiFi, BLE 6) CAD: AutoCAD (for enclosures, layouts), Fusion 360 (basic) 7) Expertise: Real-time debugging, signal filtering, sensor calibration, motor control What Sets Me Apart 1) End-to-end system design: concept to circuit to firmware 2) Battle-tested builds: used in competitions, research, and demos 3) Maintainable code and schematic structure 4) Quick response and support for project scaling 5) Prototyping to production-ready solutions Project Types I Work On 1) Smart robotic platforms and mobile surveillance bots 2) EMG-based assistive robotics and gesture-controlled systems 3) IoT automation, data loggers, and remote monitoring 4) Custom PCB design and microcontroller programming 5) Educational kits for STEM electronics and robotics 6) Motor driver boards and intelligent actuators 6) Wireless telemetry and real-time sensor platforms Let’s collaborate to turn your idea into a functional, reliable, and efficient reality — whether it’s a smart device, a robotic system, a custom board, or an embedded product with full firmware-hardware integration.

🚀 From concept, to prototype, to production. My experience in every step of the process can help you bring your ideas to reality. Take a look at my portfolio below for some examples of the great projects I have completed. 📐 Design Priorities: - High reliability and robust performance - Cost-efficiency in prototyping and volume production - Manufacturability (DFM) - Design for Test (DFT) to simplify validation - Long-term component availability - EMC compliance (CE/FCC/UL) through proactive design - Production support, both onshore and offshore 🛠️ Preferred tools - Altium Designer (licensed) - KiCad - Git for version control 🤝 Available via vetted subcontractors: - Enclosure / mechanical design - Embedded firmware development - Desktop software integration For complete product development, I often act as the main technical contractor, ensuring seamless coordination between hardware, software, and mechanical teams. I am also available to join existing teams or solo jobs. 📞 Let’s Work Together If you have a project that requires experienced electrical engineering support, feel free to get in touch for a free consultation. I look forward to helping you build something exceptional.

I am a FPGA systems developer with over 12 years experience in all aspects of FPGA-based and embedded digital system design. Independent and self-driven, I consult for a wide variety of applications/industries. Founder at bard0 design. I cover all major FPGA vendors AMD/Xilinx, Altera, Lattice, Microchip, Efinix, GoWin. My skills include: -FPGA development consulting (Xilinx, Altera, Lattice,Microchip,Efinix,GoWin) -RTL architecture design and development (VHDL, Verilog, SystemVerilog) -Imaging applications (CMOS&CCD Sensors,MIPI-CSI,SDI,HDMI,HiSPi,CameraLink,CoaXPress,USB3Vision,GigE Vision) -8k/4k/HD video processing -Ethernet/Networking applications (10/100/1000 and 10Gbps) -High-Speed I/O interfaces (LVDS, SLVS, Gigabit Transceivers, PCIe Gen4+) -Memory interfaces and management (SRAM, DDR3/DDR4) -Embedded processor integration (RISC-V,ARM, Microblaze/NIOS) -Embedded Firmware development (Assembler, C) -Schematics, I/O Planning, PCB design

Mechatronics & Robotics Engineer with 5 years of Experience in Robotics, Industrial Designing , robotic Arm , C++ Programming , Embedded Programming I am also fluent with Technical Writing , Proof Reading , Sourcing , Supply Chain Management as I've been working as Supply chain manager for 4 years. Procurement. I have following Software and Technical Expertise Robotics - Robot Operating Software (ROS) , Computer Vision , Linux , V-rep , Gazebo, AI Deep RL and Unsupervised Learning Control Engineer , Model Predictive Controls , Reinforcement learning IOT - Arduino , TinkerCad , PIC Microcontrollers Languages = Python , C++ and C, flutter Technical Writing : Data entry , Proof reading , Research writing , Technical Sourcing from after market

I lead a multidisciplinary team of engineers - electronics, mechanical, firmware, PCB, CFD/FEA, and production - providing end-to-end new product development for physical products. For 8+ years, we’ve helped startups and established companies turn ideas into working, manufacturable products. We handle everything in-house - custom electronics design, PCB layout, firmware, mechanical design, simulations, and prototyping - moving projects from concept (TRL-3) to production-ready (TRL-8). Our expertise covers: - PCB design (HDI, RF, high-speed, flex-rigid) - Embedded & Linux firmware development - Power and battery management systems - Wireless connectivity: BLE, LoRa, NB-IoT, Wi-Fi, GPS, Zigbee - Mechanical design, CFD/FEA simulations, and DFMA - Rapid prototyping and production support Whether you need a single PCB or a complete device - we deliver fully functional prototypes, ready for mass production. Let’s discuss your project - I’ll help plan the best technical and production roadmap to bring your hardware idea to life.