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About Me I am a professional PCB Designer with extensive Altium, Kicad and EasyEDA experience, delivering commercial and non-commercial hardware projects . I create reliable, production-ready, and cost-optimized multilayer PCB designs tailored to client requirements, while ensuring signal integrity, power integrity, controlled impedance, and EMI mitigation. All files are manufacturing-ready for JLCPCB and other PCB factories, including Gerbers, BOMs, and assembly files. I focus on providing efficient, high-quality solutions that meet both technical and budgetary requirements. 🔑My Key Services ✅ Complete Schematic Design based on client requirements ✅ Multilayer PCB Layout with industry best practices (EMI/EMC, impedance control, spacing rules) ✅ BOM Creation + Cost Optimization while keeping parts available and affordable ✅ PCB designs compatible with JLCPCB and other manufacturers, with BOM & CPL files ready for assembly. ✅ Prototyping Support and design review ✅ RF, Antenna, and High-Speed PCB design ✅ Designing a PCB from a problem statement (from concept → prototype → production) ✅ Support in placing PCB & PCBA orders on JLCPCB and other Manufactories Projects I Have Completed ✅ ESP32 and ESP8266 development boards ✅ STM32 custom boards (Blue Pill, Black Pill, Maple, custom designs) ✅ ATmega-based commercial products ✅ Buck/Boost power supply designs ✅ USB 2.0 / 3.0 hardware ✅ Motor drivers, relays, sensors, IoT controllers Applications & Special Expertise ✔ I2C, SPI, UART ✔ RF & Antenna tuning ✔ DC-DC converters (Buck/Boost/LDO design) ✔ Low-noise analog design ✔ Power integrity & thermal optimization Final Deliverables ☑ Source files (PCB + Schematic) ☑ Gerber files for manufacturing ☑ BOM (cost-optimized + alternatives) ☑ Pick & Place files ☑ PDF documentation

PROFILE Formerly Ass. Prof. in the Military Technical College. • Microwave and RF system design engineer • Analog and digital circuit design engineer • CAD/CAM engineer for PCB design and manufacture by CNC machines • Microwave and RF circuit design engineer • Microwave receiver expert. • University lecturer (Microwaves, Receivers, Logic Circuits, Electromagnetic Fields and Computer Networks). KEY ACHIEVEMENTS • Design, implementation, and testing of hundreds of RF and MW filters. • Design, implementation, and testing of wide-band printed dipole antennas (2009- 2013). • Author of 24 papers published in different international conferences and academic magazines, most of which are single-author papers. • Design, implementation, and measurement of a complete DRFM. • Proposing a new method for digital frequency translation using DRFM. It was published in a paper and successfully implemented. • Supervision of 4 MSc. Theses and 1 Ph.D. Thesis. • Reviewing 5 Msc. Theses and 5 papers. • Leading more than 30 graduation projects. • Hundreds of RF and Microwave PCB's have been designed by me and prototyped under my direct supervision. Most of those circuits were Microstrip circuits. Some coplanar waveguide circuits have also been designed and implemented. • FR4 was the main substrate in most designs. Different professional substrates (of Rogers and Arlon products) have been used in my designs with relative permittivity ranging between 2 and 10.5 and dielectric height between 0.2 and 2.6 [mm]. CAPABILITIES I can design RF systems and circuits, RF antennas and electronic circuits, give you full design and prototyping documentation (including design description, design equations and calculations, simulation results, schematic and layout drawings, Gerber files, Excellon files and BOM files, test procedures and test recommendations) and give full technical assistance to you in prototype building and testing. No prototype building No software coding

"𝗛𝗮𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗮𝘁𝗮𝘀𝗵𝗲𝗲𝘁 𝗮𝗻𝗱 𝗮 𝗣𝗖𝗕 𝗹𝗮𝘆𝗼𝘂𝘁 𝘁𝗼𝗼𝗹—𝗜'𝗹𝗹 𝘁𝘂𝗿𝗻 𝘆𝗼𝘂𝗿 𝗶𝗱𝗲𝗮 𝗶𝗻𝘁𝗼 𝗵𝗮𝗿𝗱𝘄𝗮𝗿𝗲." 𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗛𝗮𝗿𝗱𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗶𝗻𝗴 𝗶𝗻 𝗣𝗖𝗕 𝗱𝗲𝘀𝗶𝗴𝗻 𝘄𝗶𝘁𝗵 2+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗵𝗮𝗻𝗱𝘀-𝗼𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. 𝙃𝙖𝙧𝙙𝙬𝙖𝙧𝙚 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚: ◉ 𝗣𝗖𝗕 𝗗𝗲𝘀𝗶𝗴𝗻: Altium Designer - Multi-layer boards and professional layouts (up to 4-layers). ◉ 𝗖𝗶𝗿𝗰𝘂𝗶𝘁 𝗗𝗲𝘀𝗶𝗴𝗻: Power circuits, sensors, and communication systems. ◉ 𝗖𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁 𝗦𝗲𝗹𝗲𝗰𝘁𝗶𝗼𝗻: Choosing the right parts for your project. ◉ 𝗛𝗮𝗿𝗱𝘄𝗮𝗿𝗲 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Using tools to find and fix hardware problems. 𝙏𝙤𝙤𝙡𝙨: Altium Designer | LTspice | Proteus | Hardware debugging tools 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: PCB Design, Hardware Engineering, Circuit Design, Altium Designer, Power Electronics, Embedded Hardware, STM32, AVR, ARM, ESP32, Arduino, Microcontroller, IoT, Firmware, Proteus, LTspice, UART, SPI, I2C, Power Management, Component Selection, Hardware Debugging, Schematic Design.

I specialize in hardware design, embedded systems architecture, and professional PCB layout. My primary focus is translating system requirements into reliable, manufacturable, and industrial-grade hardware. While my core day-to-day work involves embedded hardware and robust PCB design, I also have a solid background in high-speed digital design principles. I approach every board with strict attention to Signal and Power Integrity, EMI/EMC mitigation, and Design for Manufacturing (DFM). Core Capabilities: Embedded Hardware Design: Designing solid hardware architectures around microcontrollers (STM32, ESP32, AVR), including power regulation systems, communication interfaces, and sensor integration. PCB Layout & DFM: Expertise in designing multi-layer boards using Altium Designer. I design strictly for the factory floor, adhering to IPC-2221/IPC-7351 standards to ensure your design is fabricated and assembled without technical hold-ups at houses like JLC or PCBWay. High-Speed & Mixed-Signal: Capable of handling complex constraints when a project demands it, including impedance matching, length tuning, and differential pair routing for FPGAs and memory interfaces (DDR). Power & Analog Electronics: Experience with switching regulators (SMPS), high-current drivers, and low-noise analog front-ends. Technical Toolkit: EDA / PCB Design: Altium Designer (Advanced constraints, xSignals, 3D modeling). Simulation & Analysis: LTspice, Proteus (Transient, AC/DC analysis). Standards: DFM, DFA, EMI/EMC best practices. What You Receive: Clean, hierarchical, and readable Schematics. Optimized PCB Layouts tailored for thermal dissipation and signal integrity. Complete Manufacturing Pack (Gerbers, NC Drill, Centroid/Pick & Place, and BOM). 3D STEP files for seamless mechanical and enclosure integration. If you are looking for a practical, detail-oriented hardware engineer who speaks the language of datasheets and delivers ready-to-manufacture designs, let's discuss your project.

We are a specialized team in IoT, Robotics, and Embedded Systems development, led by Engineer Mahmoud, an Expert Embedded Engineer with 10+ years of hands-on experience in electronics design, firmware development, and system integration. As a B2B engineering team, we help startups and businesses transform ambitious product ideas into market-ready smart solutions, with direct communication with the team lead for clarity, accountability, and technical depth. 1. Hardware / Electronics Design --------------------------------------- 🔹 Analog Electronics - High-accuracy measurements - Noise filtration - Signal amplification - DAC/ADC conversions 🔹 Digital & High-Speed Electronics - Memories: DDRx, LPDDR, SDRAM - Camera & display interfaces: MIPI-DSI/CSI, DisplayPort - Data communication: QSPI, SPI, UART, I2C, FMC, I2S, USB 2/3.x 🔹 RF & Wireless Designs - Radars: 50–60 GHz - 1–6 GHz: UWB, Wi-Fi, BLE, ZigBee, GPS, NB-IoT, LTE-M/LTE, Z-Wave - NFC & RFID: 13.56 MHz & 128 kHz - Custom protocols: 433 MHz 🔹 PCB / FPC Design - Schematics & layout: Altium, KiCad, EasyEDA - High-speed & RF optimized boards --------------------------------------------------------------------------------- 2. Firmware Design (C/C++) --------------------------------- 🔹 Languages & Frameworks - C, C++, Assembler - GUI libs: LVGL, TouchGFX, emWin - Security: WolfSSL, MbedTLS - Sensor fusion: osxMotionFX (Kalman-based) - Files & network: FatFS, lwIP, WICED, Amazon FreeRTOS, Paho MQTT - AI: TensorFlow Lite 🔹 Embedded OS: A- FreeRTOS, Zephyr, TI-RTOS, Embedded Linux, Yocto, ROS 🔹 MCUs & MPUs - STM32, ESP32/ESP8266, NXP, Nordic, TI, Microchip, Cypress, Silicon Labs, Holtek, Kinetis - MPUs: Analog Devices ADSP-2156x, Qualcomm Snapdragon, Allwinner, ST STM32MP1 - SOMs: NVIDIA Jetson (Nano, Orin), Toradex, Raspberry Pi CM, Inforce, Sensiedge 🔹 Interfaces & Protocols - Interfaces: I2S, SAI, MIPI-DSI/CSI, USB 2/3.x, LTDC, DDR3/DDR4/LPDDR4, I2C, SPI/QSPI, UART, CAN, Ethernet - Wireless: NB-IoT, LTE-M, GPRS, GPS, UWB, Wi-Fi, BLE, ZigBee, Z-Wave, LoRa, Thread, 6LoWPAN, Sub 1GHz, NFC, RFID - Protocols: MQTT, HTTP, FTP, Modbus TCP/RTU, SNMP, TCP/IP, UDP/IP, DLMS, Custom protocols - Security: AES, SSL/TLS, custom algorithms -------------------------------------------------------------------------------------------------------------- 3. Software & UX/UI Design ---------------------------------- 🔹 Applications: Android, iOS, Windows, Linux 🔹 Embedded GUI & UX: Touchscreen & embedded display design 🔹 System-level Software: Linux kernel & user-space development 🔹 Cloud Integration: AWS, Azure, Google Cloud, MQTT brokers 4. Embedded QA & Testing -------------------------------- 🔹 Manual & Automated Verification A- PCB/FPC inspection B- Functional & unit testing (Firmware/Software) C- Stress, performance, and environmental testing (temperature range, reliability) 🔹 Simulation & Advanced Testing A- Robotics & electromechanical systems: ROS, Gazebo B- Physics-based simulations: control, electromagnetics, dynamics C- AI/ML integration with embedded systems ------------------------------------------------------------------- 5. Value We Deliver ----------------------- ☑ Research – Feasibility & technology analysis ☑ Problem Solving – Debugging & troubleshooting complex issues ☑ Proof of Concept (PoC) – Idea validation to working demos ☑ Optimization – Performance tuning, cost & efficiency improvements ☑ Prototyping → Productization – MVP to production-ready solutions ☑ Custom Solutions – Tailored designs for unique business challenges ☑ Full Turnkey Development – Hardware, firmware, software, QA & documentation 6. Tools & Platforms ------------------------ 🔹 Electronics: Altium, KiCad, EasyEDA 🔹 Firmware: C/C++, FreeRTOS, Zephyr, Embedded Linux 🔹 Software: Python, Java, C#, Flutter 🔹 Simulation: MATLAB/Simulink, ROS/Gazebo 🔹 Cloud / IoT: AWS IoT, Azure IoT, Google Cloud, MQTT brokers 7. Example Projects ------------------------ ⚡ IoT air quality monitoring system (ESP32 + LoRa + AWS) ⚡ Smart wearable glasses with embedded AI assistant ⚡ Portable ECG healthcare device with BLE app & cloud integration ⚡ Powermeter / Power monitoring system ⚡ Inverter design & control ⚡ Joystick / Gamepad development ⚡ Smart door with AI camera ⚡ Tracking camera system ⚡ Robotic arm with custom electronics ⚡ Bluetooth & Wi-Fi scanner ⚡ PLC (Power Line Communication) project ⚡ Accelerator/sensor integration system ⚡ RFID-based access & tracking system ⚡ LiDAR-based navigation or mapping ⚡ Induction heater control system 8. Why Clients Choose Us ------------------------------- ☑ Full-stack engineering: Hardware + Firmware + Software + QA ☑ Direct communication with the team lead ☑ Experience across industrial, medical, robotics, and IoT sectors ☑ End-to-end delivery: Concept → Prototype → Mass Production

I have good experience of three years of teaching Circuit Theory and Basic electronic Devices such as Diode, MOSFET, BJT, Op-Amp, Differential pair, Current Mirror, and Oscillator topics such as Harmonic oscillator and multivibrator. Also related topics such that Feedback, frequency response, and noise analysis. I have good experience in cad tools such that Altium, protus, Multisim, OR CAD, and LT spice. I graduated from the department of communication and electronics and Mastered analog and Digital (Mixed) IC circuits and Master Cadence Virtuoso software and VLSI Layout. I also Work on Matlab, Simulink, and Matlab GUI. I design a high-speed current steering Digital to analog converter in cadence virtuoso and its related circuit like Decoder, Flip Flops, and Applying Dynamic Element Matching to our DAC by using a Logarithmic shifter and 16 Bits linear feedback shift register and dealing with designing a custom Digital logic gates and Layout for each one. Also, a two-stage biopotential amplifier for ECG, EMG, and EMG applications is performed in 130 nm technology under Cadence Virtuoso. all of my previous give me a good experience