Abdul Rafe N.

Hello, I specialize in building reliable, high-quality IoT and Embedded hardware systems — from initial concept to full-scale production. My work focuses on RF engineering, PCB layout, embedded firmware development, and system integration for IoT, industrial control, and consumer electronics. I have deep expertise in tools such as Altium Designer, KiCad, Cadence Allegro, and Fusion 360, combined with strong knowledge of embedded systems, firmware programming, and wireless communication technologies (Bluetooth, Wi-Fi, BLE). I ensure every design is optimized for signal integrity, EMI/EMC compliance, manufacturability, and cost efficiency. - My Core Skills: Embedded Systems & Firmware – STM32, ESP32, ARM Cortex, AVR, PIC, Raspberry Pi, Arduino, Embedded Linux FPGA Programming – VHDL/Verilog Programming with Xilinx and InteFPGA Wireless & IoT Systems – Bluetooth / Wi-Fi / BLE hardware integration and firmware like ESP23 and etc. RF Engineering – SDR, Front-end, Antenna, Simulation, and RF system integration. Circuit Design & Simulation – Analog/digital design, signal integrity, power analysis PCB Design & Layout – Single/multi-layer, high-speed, mixed-signal, RF boards and power boards 3D & Mechanical Integration – Fusion 360 for enclosure and component fit Testing & Validation – Prototyping, debugging, and hardware optimization - Selected Past Projects: * IoT Smart Sensor Module – Designed a 4-layer PCB and developed ESP32 firmware with Bluetooth/Wi-Fi connectivity. * Custom SDR RF PCB – Designed a 20-layer PCB using Zynq Ultra-scale controller and added RF front-end and Antenna. Worked 600MHz ~ 6GHz frequency. * Industrial Motor Control Board – Developed control and power circuitry using STM32 MCU with real-time embedded firmware. * Wireless Data Logger – Created compact, low-power data acquisition hardware with BLE communication. * Consumer Audio Amplifier Board – Designed high-fidelity analog/digital PCB with minimal noise and distortion. I take pride in delivering clean, production-ready designs, clear documentation, and strong communication throughout every project. Whether you need a full product development cycle or support for part of your design, I’m ready to help you bring your hardware ideas to life. Let’s work together to turn your concept into a professional, manufacturable solution. Thank you for reading my profile.