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Seeking an expert to transform your idea into a market-ready product? Clients hire me for turnkey hardware and firmware solutions. Beyond PCB design, I handle sourcing, PCBA, and rigorous testing. I don't just send files; I build, debug, and deliver high-quality proven prototypes. I help startups, entrepreneurs, and engineering teams take products from concept → prototype → production. I support the full process, including product research, circuit design, schematic capture, PCB design, firmware development, prototype manufacturing, assembly, testing, debugging, validation, and production handoff. ---- Why clients hire me ---- ✅ I turn complex ideas into working products I take rough concepts, difficult requirements, or incomplete designs and turn them into practical, tested hardware. ✅ I stay involved until the design works I do not stop at schematics or PCB layout. I support bring-up, debugging, rework, firmware, validation, and design improvements so clients are not left with non-working prototypes. ✅ I handle compact and difficult PCB designs I am often brought in for very compact PCBs, custom PCB shapes, high-density layouts, RF boards, high-speed boards, analog signal chains, and power electronics, where careful design choices are critical. ✅ I reduce the client’s workload My team and I can support PCB manufacturing, component sourcing, assembly, firmware, testing, and small-batch production, so clients do not need to coordinate multiple vendors. ✅ I work well with technical teams I can join ongoing projects quickly, support existing hardware and firmware teams, and help move development forward without slowing things down. ---- Services I offer ---- 🔹 Complete product development — idea to prototype to manufacturing 🔹 PCB design — professional, compact, production-ready layouts 🔹 PCB review and verification — schematic review, layout review, design improvements 🔹 Circuit design and simulation 🔹 Firmware development — microcontrollers, processors, and Linux-based systems 🔹 Hardware bring-up, debugging, testing, and validation 🔹 Fixing boards that do not work properly 🔹 Prototype assembly and small-batch manufacturing 🔹 3D CAD support / enclosure coordination ---- PCB design expertise ---- I design PCBs across a wide range of domains, including: ▪ High-speed PCB design ▪ High-density / compact PCB design ▪ RF PCB design ▪ Analog PCB design ▪ Power electronics PCB design ▪ IoT hardware design ▪ Custom-shape and space-constrained PCB layout ▪ Multi-board systems and interconnect design I focus on clean layout, manufacturability, reliability, and real-world performance. ---- Firmware and embedded systems ---- I provide professional firmware development as a standalone service or as part of a full product build. Platforms and families I work with include: ▪ STM32, ESP32 / ESP-IDF, Arduino ▪ TI C2000 / Code Composer Studio ▪ PIC / Atmel / SAMD ▪ FPGA / SoC systems ▪ Linux-based embedded systems ▪ Single-board computers, microprocessors, and controllers Languages: ▪ C / C++ ▪ MicroPython ▪ JavaScript / embedded scripting ▪ Assembly when needed ---- Tools and software ---- PCB Design: ▪ Altium Designer ▪ KiCad ▪ EasyEDA Embedded / Firmware: ▪ STM32CubeIDE ▪ ESP-IDF ▪ Arduino IDE ▪ Code Composer Studio Simulation / Engineering Tools: ▪ LTspice ▪ Proteus ▪ HFSS ▪ Multisim ▪ LabVIEW GUI / Display Frameworks: ▪ LVGL ▪ TouchGFX ---- Interfaces, protocols, and technologies ---- Interfaces: ▪ SPI ▪ I2C ▪ UART ▪ CAN ▪ I2S ▪ USB ▪ Ethernet ▪ MIPI-CSI / MIPI-DSI ▪ LVDS ▪ FMC ▪ Memory interfaces Wireless / Connectivity: ▪ WiFi ▪ BLE ▪ LoRa ▪ GPS / GNSS ▪ LTE / GSM ▪ NFC ▪ UWB Protocols: ▪ MQTT ▪ HTTP ▪ FTP ▪ TCP/IP ▪ UDP ▪ SSL/TLS Operating Systems: ▪ FreeRTOS ▪ TI-RTOS ▪ Embedded Linux ---- Specializations ---- 🔸 Power Electronics — DC-DC converters, MPPT, motor control, BMS, power supplies 🔸 RF Design — 2.4 GHz to 77 GHz, radar systems, filters, mixers, antennas 🔸 High-Speed Design — USB, LVDS, FMC, memory and fast digital interfaces 🔸 Analog Design — signal conditioning, ADC interfacing, filtering, measurement circuits 🔸 Embedded Product Development — concept to tested prototype to production 🔸 Testing and Debugging — hardware issues, prototype failures, bring-up and validation ---- Testing, validation, and manufacturing support ---- One of the biggest advantages I offer is hands-on validation. My team and I support: ▪ In-house bring-up and testing ▪ Prototype debugging and rework ▪ Small-batch PCB assembly ▪ Automatic pick-and-place assembly ▪ Reflow soldering ▪ Component sourcing and fabrication coordination Let’s talk If you need help with PCB design, embedded systems, firmware development, RF design, power electronics, debugging, prototype testing, or taking a product to production, I’d be glad to discuss your project.

I transform your high-risk hardware concepts into stable, manufacturable products that work on the first spin. By combining advanced PCB design with my in-house assembly and testing lab, I eliminate the 3-week delay and technical uncertainty of traditional prototyping cycles. Services ✅Advanced Schematic Design: Hierarchical, well-documented circuit blueprints designed for clarity and debuggability. ✅Multilayer PCB Layout: Precision routing up to 12 layers with controlled impedance and length matching. ✅High-Speed Interfaces: DDR4, USB 3.1, HDMI, and PCIe layout following strict transmission line physics. ✅Power Electronics: DC-DC converter optimization (Buck/Boost), high-current pathing (up to 50A), and thermal dissipation. ✅Mixed-Signal Design: Protecting sensitive analog sensor data from high-speed digital noise via proper partitioning. ✅RF and Antenna Integration: BLE, Wi-Fi, and LoRa antenna matching and layout for maximum range. ✅Design for Manufacturability (DFM): Comprehensive review of footprints, solder mask, and drill tables to ensure high factory yields. ✅Hardware Design Review: Third-party analysis of your existing boards to find and fix stability or EMI issues. ✅Bill of Materials (BOM) Scrubbing: Optimizing for cost, lead time, and production volume. ✅In-House SMT Assembly: Small-batch production (1–100 units) on my professional pick-and-place line. ✅Bring-Up and Validation: Power rail verification, signal probing, and thermal mapping of the first physical prototypes. ✅Test Fixture Design: Custom "Bed-of-Nails" jigs for your production line. ✅Legacy PCB Reverse Engineering: Modernizing obsolete boards with currently available components. Specializations 🎯High-Speed Digital Layout (DDR4, USB 3.x, PCIe) 🎯Power Integrity & PDN Optimization 🎯EMI/EMC Aware Design & Mitigation 🎯Design for Manufacturability (DFM) 🎯Multilayer PCB Stackup Architecture 🎯Precision Analog & Mixed-Signal 🎯IoT & Ultra-Low Power Wearables 🎯Rigid-Flex & Flexible PCB Design 🎯Thermal Management & Heat Dissipation 🎯Small-Batch PCBA Manufacturing Process ⚙️Requirement & Risk Assessment: I begin by analyzing your technical specifications and identifying potential "deal-breakers" in EMI, power, or component lead times. ⚙️Architecture & Schematic Capture: I build a logical, hierarchical schematic and perform initial BOM scrubbing to ensure all parts are in production. ⚙️Stackup & Layout Engineering: I design the layer stackup for impedance control and route all signals using simulation-led SI/PI best practices. ⚙️DFM/DFT Verification: I run a comprehensive audit against 100+ manufacturing rules to ensure your board is ready for the assembly line. ⚙️Prototyping & Assembly: I manufacture the first physical units in my in-house lab, allowing for immediate physical validation. ⚙️Bring-Up & Bench Testing: I power on the boards, verify every voltage rail, and probe critical signals to ensure they meet your specs. ⚙️Handover & Support: You receive the full source files, manufacturing pack, and a "Bring-up Guide" to help your firmware team get started immediately. Tools/Stack 🔧EDA: Altium Designer (Primary), KiCad, EasyEDA, LT Spice, Solidworks, Onshape 🔧Lab: 4-Channel 500MHz Oscilloscope, Spectrum Analyzer, Logic Analyzer, Thermal Camera, SMT Pick-and-Place line Great fit if… 🤝 You are a startup needing a partner who can build working hardware, not just deliver files. 🤝 You have a high-complexity design (DDR, USB, HDMI) that requires precision layout. 🤝 You need a "turnkey" solution from design through small-batch production. 🤝 You have an existing design that is failing EMI/EMC or has stability issues.

Stop wasting time on boards that don't work. I design manufacturing ready, multi-layer PCBs that bring your electronic products to life. I am a professional Embedded Systems Engineer specializing in high quality schematic capture and PCB layout. Whether you need a simple 2-layer prototype or a complex multi-layer industrial board, I ensure your design is optimized for both performance and Design for Manufacturing (DFM) to keep production costs low. Core Expertise: ✅PCB Layout: High-speed digital, precision analog, and power electronics (Multi-layer). ✅Hardware Integration: Extensive experience with ESP32, STM32, Arduino, and LoRa. ✅Schematic Design: Component selection, circuit simulation, and custom library management. ✅Manufacturing Files: Full production packages (Gerber X2, BOM, Pick-and-Place, 3D STEP). ✅Industry Tools: Expert proficiency in KiCad, Altium Designer, and Autodesk Eagle. Why work with me? ✅ Manufacturing Ready: I don't just "draw" boards; I design them to be built according to IPC standards. ✅ Fast Turnaround: Clear communication and strict adherence to your project deadlines. ✅ Post-Delivery Support: I provide technical support until your board is successfully fabricated and assembled. Let’s discuss your project requirements. Send me a message or click "Invite to Job," and I’ll provide a quick initial review of your concept!

Electronic Engineer with 5+ years of experience in Analog, Digital and Mixed signal Electronics. Experienced in Embedded Hardware Design, Firmware architecting and Firmware Development in C/C++ (ZephyrRTOS, FreeRTOS and bare-metal) for Microchip AVR, STM32, Ti C2000, Nordic nRF53/52 and ESP32 platforms. Delivered products with 6+ layers for industrial and automotive aplpications. Current work: Automotive software, ASPICE, C++ development

Do you envision a groundbreaking hardware creation but lack the comprehensive expertise to bring it to life? I'm a highly motivated and detail-oriented full-stack embedded systems and PCB design engineer with over 7 years of experience in both disciplines. Leveraging my in-depth knowledge across hardware design, firmware development, and high-performance PCB creation, I empower clients to translate their innovative ideas into reliable, efficient, and manufacturable hardware solutions for diverse applications. 𝐀𝐝𝐝𝐫𝐞𝐬𝐬𝐢𝐧𝐠 𝐘𝐨𝐮𝐫 𝐂𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞𝐬: ▪ Struggling with complex hardware integration, sensor interfacing, and PCB design? ▪ Facing challenges with efficient communication protocols and high-speed routing? ▪ Seeking expertise in low-level programming, algorithm implementation, and robust PCB design? ▪ Looking for a developer who prioritizes clear communication, documentation, and version control? ▪◾◼𝘐 𝘤𝘢𝘯 𝘩𝘦𝘭𝘱 𝘺𝘰𝘶 𝘰𝘷𝘦𝘳𝘤𝘰𝘮𝘦 𝘵𝘩𝘦𝘴𝘦 𝘳𝘰𝘢𝘥𝘣𝘭𝘰𝘤𝘬𝘴 𝘢𝘯𝘥 𝘢𝘤𝘩𝘪𝘦𝘷𝘦 𝘺𝘰𝘶𝘳 𝘥𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵 𝘨𝘰𝘢𝘭𝘴!◼◾▪ 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: 🔹 𝐇𝐚𝐫𝐝𝐰𝐚𝐫𝐞 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐒𝐞𝐧𝐬𝐨𝐫 𝐈𝐧𝐭𝐞𝐫𝐟𝐚𝐜𝐢𝐧𝐠: Adept at connecting various sensors (environmental, motion, light, temperature, etc.) to Arduino microcontrollers (UNO, Mega, Nano, ESP32, ESP8266) and other embedded platforms. 🔹 𝐋𝐨𝐰-𝐋𝐞𝐯𝐞𝐥 𝐂/𝐂++ 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠: Proficient in writing efficient embedded C code for hardware control, algorithm implementation, and communication protocols (I2C, SPI, UART, WiFi, Bluetooth, etc.). 🔹 𝐃𝐚𝐭𝐚 𝐏𝐫𝐨𝐜𝐞𝐬𝐬𝐢𝐧𝐠 & 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬: Utilize libraries and algorithms to acquire, process, analyze, and visualize sensor data, extracting valuable insights for informed decision-making. 🔹 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Experienced in hardware-software co-design, real-time operating systems (RTOS), and resource-constrained environments. 🔹 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Skilled in planning, organizing, and managing the development lifecycle of embedded system projects, utilizing version control (Git, GitHub) for collaboration and code management. 𝐏𝐂𝐁 𝐃𝐞𝐬𝐢𝐠𝐧: 🔹 𝐒𝐜𝐡𝐞𝐦𝐚𝐭𝐢𝐜 𝐂𝐚𝐩𝐭𝐮𝐫𝐞 & 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬: Translate your ideas into clear and accurate schematics, utilizing SPICE simulation for robust design decisions. 🔹 𝐏𝐂𝐁 𝐋𝐚𝐲𝐨𝐮𝐭 & 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧: Convert schematics into efficient and manufacturable layouts, prioritizing signal integrity (SI), power integrity (PI), and high-speed signal routing (DDR/PCI), for optimal performance. 🔹 𝐀𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐒𝐢𝐦𝐮𝐥𝐚𝐭𝐢𝐨𝐧𝐬: Analyze your design for critical aspects like SI, PI, thermal behavior, EMI/EMC/ESD, and PDN analysis using industry-standard tools. 🔹 𝐏𝐂𝐁 𝐃𝐞𝐬𝐢𝐠𝐧 𝐕𝐞𝐫𝐬𝐚𝐭𝐢𝐥𝐢𝐭𝐲: Experienced in designing diverse PCBs, including: ◼ Mixed-signal multilayer PCBs ◼ High-density interconnect (HDI) PCBs ◼ Rigid-flex and flex PCBs ◼ RF circuits ◼ Consumer & Industrial electronics products ◼ Digital and analog system ◼ Battery-powered and low-power PCBs 🔹 𝐏𝐨𝐰𝐞𝐫 𝐒𝐮𝐩𝐩𝐥𝐲 𝐃𝐞𝐬𝐢𝐠𝐧: Proficient in designing power supplies utilizing various topologies. 🔹 𝐃𝐞𝐬𝐢𝐠𝐧 𝐟𝐨𝐫 𝐌𝐚𝐧𝐮𝐟𝐚𝐜𝐭𝐮𝐫𝐚𝐛𝐢𝐥𝐢𝐭𝐲 & 𝐓𝐞𝐬𝐭𝐚𝐛𝐢𝐥𝐢𝐭𝐲 (𝐃𝐅𝐌/𝐃𝐅𝐓): Ensure your PCB adheres to industry standards for manufacturability and testability, optimizing production efficiency. 🔹 𝐂𝐥𝐞𝐚𝐫 & 𝐂𝐨𝐧𝐜𝐢𝐬𝐞 𝐃𝐞𝐬𝐢𝐠𝐧 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲: Provide well-organized design files and documentation for seamless production. 𝐖𝐨𝐫𝐤 𝐏𝐫𝐨𝐜𝐞𝐬𝐬: I prioritize clear communication and collaboration throughout the entire process. My streamlined workflow ensures efficient project completion with estimated timelines: ✔ Initial Consultation (15 minutes): Discuss your project needs and goals. ✔ In-depth Project Discussion (30 minutes): Clarify requirements and expectations. ✔ Requirement & File Sharing (variable): Share any relevant information. ✔ Expert Development & Design (variable): I handle the technical aspects, keeping you updated throughout the process. ✔ Clear & Concise Deliverables (variable): Receive well-organized code, design files, and documentation. ▪◾◼𝘐 𝘢𝘮 𝘱𝘢𝘴𝘴𝘪𝘰𝘯𝘢𝘵𝘦 𝘢𝘣𝘰𝘶𝘵 𝘤𝘰𝘭𝘭𝘢𝘣𝘰𝘳𝘢𝘵𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘤𝘭𝘪𝘦𝘯𝘵𝘴 𝘵𝘰 𝘵𝘳𝘢𝘯𝘴𝘭𝘢𝘵𝘦 𝘵𝘩𝘦𝘪𝘳 𝘪𝘯𝘯𝘰𝘷𝘢𝘵𝘪𝘷𝘦 𝘪𝘥𝘦𝘢𝘴 𝘪𝘯𝘵𝘰 𝘵𝘢𝘯𝘨𝘪𝘣𝘭𝘦 𝘩𝘢𝘳𝘥𝘸𝘢𝘳𝘦 𝘴𝘰𝘭𝘶𝘵𝘪𝘰𝘯𝘴. 𝘊𝘰𝘯𝘵𝘢𝘤𝘵 𝘮𝘦 𝘵𝘰𝘥𝘢𝘺 𝘵𝘰 𝘥𝘪𝘴𝘤𝘶𝘴𝘴 𝘺𝘰𝘶𝘳 𝘱𝘳𝘰𝘫𝘦𝘤𝘵!◼◾▪

Greetings! I’m Mohamed Ashfaq, an Electronics and Embedded Systems Engineer with 3+ years of experience in PCB design, firmware development, and IoT product engineering. I specialize in taking projects from concept to prototype, including schematic design, PCB layout, firmware development, PCB manufacturing, and component sourcing. I have strong hands-on expertise with ESP32, STM32, and Arduino platforms, and focus on low-power IoT systems, wireless communication, and sensor-based applications. My goal is to deliver reliable, cost-effective, and production-ready hardware solutions. 💻 Skills & Expertise: -PCB Design & Layout (KiCad, EasyEDA) -Firmware Development (ESP-IDF, STM32CubeIDE, Arduino, Zephyr, FreeRTOS) -Schematic Design (Analog & Digital Circuits) -PCB Manufacturing & Assembly (JLCPCB) -Component Sourcing & BOM Management -IoT Product Development (Wi-Fi, BLE, LoRa) -Low-Power Design, Testing & Debugging 🚀 Why Choose Me: - 3+ years of experience in embedded and PCB product development - Full-cycle capability, from PCB design to manufacturing and firmware integration - Expertise in Embedded C, RTOS, and IoT architecture - Dedicated to quality, timely delivery, and clear communication Hardware: STM32, ESP32, Arduino (ATMEGA), SPC58 microcontroller (Automative grade) Languages/ Technologies: Reverse Engineering, KiCad, easyEDA, Zephyr RTOS, FreeRTOS, STM32Cube IDE, Arduino IDE, ESP-idf Clouds: Thingboard, Thingspeak Interfaces: CAN, RS485, UART, SPI, I2C Let’s collaborate to turn your idea into a fully functional embedded product designed, built, and ready for production. 📩 Contact me today to discuss how I can support your next IoT or electronics project.