Hire the Best Integrated Circuits Specialists

I’m an Electronics and Computer Engineer with over 5 years of experience helping clients turn ideas into real, production-ready hardware, from initial circuit design to fully functional prototypes. I focus on creating efficient, reliable designs that are ready for manufacturing. My work covers multilayer PCB layouts, 3D CAD modeling, and troubleshooting complex board designs to make sure everything runs smoothly before it hits production. What I Offer: -Schematic Capture & Circuit Design -Advanced PCB Layout (Altium, KiCad, Eagle, Allegro) -Hardware Development & Embedded Integration -Prototyping, Testing & Debugging -3D CAD Modeling & Enclosure Design -Design Consultation & Troubleshooting Whether you need a quick prototype or a full production design, I’ll make sure your project is clean, optimized, and on schedule. My goal is simple: to turn your ideas into hardware you can depend on to work.

I’m an experienced Embedded Systems and Electronics Engineer with a strong background in PCB design, firmware development, and product prototyping. I specialize in building reliable, cost-effective IoT and consumer electronics hardware, from concept to production. 🔧 Core Skills & Platforms PCB Design & Hardware Engineering • Tools: Altium Designer, KiCad, EasyEDA and Eagle Cad • Capabilities: o Electronics circuit Schematics Desinging o Rigid and flex PCBs o Experience with flex/FPC PCBs, High Speed and high-current and RF layout o EMI/ESD protection, ground plane optimization, RF shielding techniques o BOM preparation and cost-effective component sourcing o Reverse engineering of hardware/firmware for legacy or competing products o In-house prototyping, testing, troubleshooting, and validation • Microcontrollers: o ESP32 (including S2, S3, C3 and all other variants) o STM32 (F0/F1/F4 series) o nRF52/nRF5340 (Nordic BLE SoCs) o ATmega/ATtiny series (AVR family) o Raspberry Pi (Zero, 3, 4, CM4) • Communication Protocols: o UART Communication o I2C communication o I2S communication o SPI Communication o Can Bus Communication o Mod Bus Communication o WIFI-Communication o Bluetooth Communication o RF Communications • Wireless Hardware Skills: o Cellular (GSM/LTE/NB-IoT): Quectel (e.g., EC200U, BG95), SIMCOM (e.g., SIM800, SIM7678SA, SIM7600) – applied in vehicle tracking systems with GPS and cloud integration. o LoRa: EBYTE E22/E32 modules for motion tracking in local mesh networks up to 5KM. o Wi-Fi/Bluetooth: Advanced development with ESP32 for WIFI-Meshing, Wi-Fi sniffing, BLE advertising, and geofencing applications. o Optical Communication: Long-range MCU-to-MCU communication using modulated IR/LED systems for reliable data transfer in isolated environments. ________________________________________ 🧠 Sensor Integration & Interfaces • Motion & Environmental: o Accelerometers (LIS3DH, MPU6050), gyroscopes, and ultrasonic sensors for obstacle detection, fall detection, and gesture control. o IR sensors, flame sensors, and ultrasonic modules for object detection and safety systems. o Humidity, pressure, smoke, gas, and temperature sensor for environmental control. • Biometric & Weight Measurement: o Fingerprint modules (R502, AS608), optical pulse sensors (MAX30100/30102) o Load cells with HX711 for weight measurement • Optical communication: o Light sensors, photoresistors, and optical data transmission between MCUs over long-range using custom protocols ________________________________________ ⚡ Power System Design • Battery Management: o Lithium-ion/polymer charging circuits with fuel gauges o Low-power modes, deep sleep implementation, and wake-on-interrupt designs o Priority-based power distribution for shared charging between multiple devices • DC/DC Converters & Power Paths: o Buck, boost, and buck-boost converters for 12,9V, 5V, 3.3V, and custom rails o Reverse polarity protection, TVS diodes, inrush current limiting ________________________________________ 🔌 USB Hub Development • USB 2.0 and 3.1 Hub Designs: o High-speed routing with proper impedance matching o Switchable data lines for host/device switching o USB-PD charging with smart current limiting and role negotiation o USB power control with load switches and fault detection 🧩 One-Stop Hardware Solution I offer a complete hardware development service, including: • Component selection and sourcing from trusted Chinese and global vendors • BOM optimization for cost and lead time • Ordering PCB & PCBA from vetted manufacturers with fast turnaround • Testing, QA, and verification of assembled hardware • Troubleshooting & field debugging • Firmware reverse engineering and porting ________________________________________ If you're looking for a highly versatile embedded systems expert with hands-on experience in both firmware and hardware — from an idea to working Product — I'm ready to support your product from prototype to production.

Hello, My name’s Saddam Gul, and I’m an Electronics Engineer who is highly educated and skilled in a plethora of different build and project types. I have operated as a freelancer for the past 6 years and have fantastic ratings from my past customers, as can be seen in the Ratings section of my profile. I have knowledge and experience with all of the following, which I offer as services to all my clients: • Analog and Digital Circuits Design • Circuit Schematic Design • PCB Layout Design • Circuit Simulations • Matlab Coding • Matlab Simulink Simulations • FPGA Verilog/VHDL Coding • C/C++, Java, and C# Coding • Electronics Circuit Prototype Development and Testing • Embedded System • Microcontroller Coding • IoT • Power Electronics • Digital Logics Design • Android and IOs App Development • Web App Development I am also an expert in these software tools but not limited to: Circuits and PCB layout designing Tools/Software 1- Altium Designer 2- Diptrace 3- Easyeda 4- Kicad 5- Circuit Maker Simulations Software 1- Matlab Simulink 2- Proteus 3- Logisim 4- PSIM 5- Multisim Programming Software 1- Arduino IDE 2- Dev C++ 3- Visual Studio 4- Maple 5- Code Composer Studio (CCS)" 6- Flutter I work 7 days a week, and am available at all hours during those days. All my work is guaranteed to be on time AND on budget, and I am always available to answer any questions or concerns you may have during the completion of your product. Any questions? Interested in working with me? Send me a message or hit the ‘Hire Me Now’ button and let’s get started!

A startup founder came to me with a four-week investor deadline, a constrained enclosure, and no schematics. We engineered a dense 6-layer IoT PCB layout with full signal integrity simulation it powered up perfectly on the first pass, secured their seed round, and earned this review: “He didn’t just design a circuit board, he literally saved our investor launch.” That outcome isn't luck. It's the result of treating every hardware engagement as a production problem from day one, not a prototype exercise. I'm a Top Rated Plus PCB design engineer and electrical engineering specialist with 5+ years of experience and 85+ completed hardware deployments across IoT devices, industrial automation, robotics platforms, and medical device electronics. My work covers the full hardware development cycle, schematic design, multilayer PCB layout, embedded systems integration, signal integrity optimization, and manufacturing-ready deliverables that hold up through fabrication and real-world operation. Recent projects include a flexible PCB design for NIR (near-infrared) sensing and a Bluetooth lapel microphone board built on the Nordic NRF52840 compact, signal-sensitive hardware where PCB layout discipline, impedance control, and RF interference management directly determine whether the product works. ESP32 and STM32 embedded systems, BLE and WiFi communication hardware, motor controllers, and power electronics for EV and industrial automation applications make up the rest of my active project history. ● How I Work: I design primarily in Altium Designer and KiCad, with schematic design and IPC-compliant component sourcing completed before layout begins. Every PCB layout is built around DFM and DFA principles, high-speed routing, impedance control, EMI/EMC mitigation, differential pair routing, and thermal management so respins stay rare and first-pass success rates stay high. Deliverables include fabrication-ready Gerber files (RS-274X/ODB++), CPL/pick-and-place files, and production-ready Bills of Materials. No loose ends at handoff. ● Core Expertise: ⁃ PCB Design & Layout: Multilayer PCB layout (2-layer to 12+ layer), high-speed routing, signal integrity analysis, impedance matching, EMI/EMC mitigation, rigid-flex PCB design, thermal management, DFM/DFA optimization ⁃ Schematic Design & Circuit Engineering: Schematic capture, analog and digital circuit design, mixed-signal circuit development, power electronics design, BOM optimization, component lifecycle analysis ⁃ Embedded Systems & IoT Hardware: ESP32, STM32, ARM Cortex embedded hardware development, BLE and WiFi system integration, low-power IoT hardware design, embedded firmware-ready platform development, wireless sensor node design ⁃ ECAD Tools: Altium Designer, KiCad, Autodesk Eagle footprint and library generation to IPC standards ⁃ Manufacturing Deliverables: Gerber files (RS-274X / ODB++), pick-and-place/CPL files, production BOM, fabrication, and assembly documentation. ● Who I Work With: My strongest engagements are with founders and engineering teams who treat hardware development as a serious investment not a race to the cheapest PCB layout quote. ● Who are strong fit: ⁃ You are building a market-bound product and understand the real costs of component sourcing and PCB prototyping cycles ⁃ You are ready to invest the time and budget that production-quality electrical engineering actually requires ⁃ You come with defined requirements a clear concept, target specs, or reference schematic design ⁃ You are available for brief milestone reviews to keep the PCB design aligned throughout development ● Track Record: 100% Job Success · Top Rated Plus · $200K+ earned · 5,700+ hours delivered Upwork hourly and fixed-price engagements, from initial schematic design through manufacturing handoff. If your project is production-bound and you need a PCB design and embedded systems engineer who takes full ownership from schematic design through fabrication-ready deliverables invite me to your job or book a direct consultation to review PCB stack-up strategy, circuit architecture, and component selection before we begin.

Electrical Engineer specializing in end-to-end hardware development, from power systems to embedded RF applications. I transform concepts into manufacturing-ready PCBs, handling everything from schematic capture to multi-layer routing, DFM handoffs, and 3D enclosure integration. Core Expertise: PCB & Hardware Design: Altium Designer, KiCad, EasyEDA Power Systems & Industrial Control: Load flow studies, symmetrical component fault analysis, and robust industrial control panel design (including RO/UV systems). Embedded & RF Prototyping: ESP32, STM32, IoT mesh networks, and antenna/RF layout optimization for wireless communications. Simulation & Validation: PSpice, Proteus, LTspice Services I Offer: Schematic Capture & Conceptual Circuit Design Multi-layer PCB Layout, Routing, & Component Selection Gerber Generation, BOM Management, & Manufacturing Handoff Fault Analysis & Power System Optimization Hardware Testing & Technical Troubleshooting Whether you need a rigorous industrial control board, complex power calculations, or a rapid IoT prototype with strict RF constraints, I deliver robust, fully tested designs optimized for manufacturing. Let's bring your hardware project to life.

With over 13 years of experience in PCB designing, hardware development, and component sourcing, I have successfully designed and implemented a wide range of projects. My expertise spans various domains, including FPGA-based systems, BLE (Bluetooth Low Energy), IoT (Internet of Things), NB-IoT (Narrowband Internet of Things), and power supply circuits. Key Highlights: - **PCB Design**: Proficient in creating intricate PCB layouts, including high-speed, differential pairs, and RF track and antenna routing. - **Layer Stack-Up**: Accomplished designs with up to 16 layers, ensuring optimal signal integrity and performance. - **EDA Tools**: Adept at using industry-standard EDA tools, including: - **Altium Designer**: Leveraging Altium's comprehensive suite for schematic capture, PCB layout, and 3D visualization. - **Autodesk Eagle and Eagle 360**: Familiar with Eagle's user-friendly interface and cloud-based collaboration features. - **Mentor Pads9.5 and Mentor Graphics PADS Pro VX.2.10**: Experienced in constraint-driven design and signal integrity analysis. - **Orcad Allegro 17.2**: Proficient in complex PCB designs using Cadence's powerful toolset. - **KiCad**: Skilled in open-source PCB design with KiCad, benefiting from its community-driven development. - **PCBweb, EasyEDA & Fritzing**: Versatile in using online platforms for various design requirements. - **MCUs and Processors**: Proficient with various microcontrollers (MCUs) and processors, including: - STM32 family (e.g., STM32F4, STM32H7) - Atmega series (e.g., Atmega328P) - PIC microcontrollers (e.g., PIC16, PIC18) - ARM Cortex-M series (e.g., Cortex-M0, Cortex-M4) - ESP8266 and ESP32 - Raspberry Pi (ARM-based) - Intel x86 processors (e.g., Core i7, Xeon) - AMD Ryzen processors - **FPGA Expertise**: Versed in designing for various FPGA families, tailoring solutions to project-specific requirements. - **Bluetooth Low Energy (BLE)**: A wireless, low-power communication standard for IoT devices. - **Global Navigation Satellite System (GNSS)**: Satellite-based positioning systems (e.g., GPS, Galileo) for location tracking. - **Narrowband IoT (NB-IoT)**: Cellular technology designed for low-power, wide-area IoT applications. - **Quality of Service (QoS)**: Ensuring reliable and predictable performance in IoT networks. PER hour rate for 2 Layer PCB=$10 PER hour rate for 4 Layer PCB =$20 PER hour rate for 6 Layers PCB=$25