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Hello, 15+ years of experience in RF design, simulation, circuit and PCB design, embedded IoT hardware and firmware development. RF & PCB Design - RF Antenna Design, Simulation, RF circuit calculation - Ansys HFSS, Keysight ADS, AWR, Matlab/Simulink - Altium Designer, Cadence Allegro, Kicad, EasyEDA - Work on complex designs with FPGAs (>1000 pins), CPUs, DDR2/3/4, Ethernet Switches. - Most designs have USB, SATA, RGMII, SGMII, 1G/10G Eth, PCIe. - Controlled impedance/length matching, via back-drilling, blind/buried vias, HDI. - Designs range from small (<100 comps) to large systems (multiple PCB >2500 comps each). - Worked on Automotive, Mil-spec, Space, High Power (> 50A, > 500V), Audio, Mixed A/D, & RF. Embedded Firmware - ARM Cortex-M, STM32, ATmel, PIC, NXP, ESP32, Nordic nRF52, Texas Instrument, Raspberry Pi, Arduino - Embedded C/C++, Python, Linux, Embedded OS, Bare-metal Firmware - Free RTOS/Zephyr, OTA/FOTA. IoT Firmware Services provided: - PCB Layout -- High Speed, Mixed A/D, RF, Audio, High Power, Telecom, Test, Mil-spec. - Schematic Capture -- Hierarchical or Flat, BOM selection, Sim/Signal Integrity. - Library Management -- Schematic symbol, PCB footprint, integrated 3D info in footprints. - Electronic Design -- High Speed, A/D, Audio, Mixed. - Electronic Design starting from the ground up to the end. - Firmware Design -- Testing and debugging on the prototype. Thank you! Dikesh

SUMMARY: 1) A Problem Solver who enjoys learning new things, working hard, facing new challenges, and offering technical leadership to companies. 2) A Ph.D. specializing in the Research and Development of new products. 3) Excellent references for every job worked. 4) All previous positions ended only due to end of contract or the company suffered from financial issues. NO OTHER REASONS. 5) 25+ years of Engineering Work experience from low level to architecture design. 6) Highly experienced using all lab equipment, DMMs, Oscilloscopes, etc. 7) Excellent PCB schematic and layout skills for through hole and SMT designs and Cell Libraries with ProCAD, component purchasing, PCB and Cable assembly experience. 8) Superior software engineering and programming skills (programming maven), including embedded, in Verilog, VHDL, C/C++/C#, Assembly Language, Python, Java, PLC, OOP, and Design Patterns. 9) 25+ years in Embedded (Firmware) Engineering through entire development lifecycle. 10) Highly experienced in analog and digital electronics design, all aspects. 11) Digital electronics design & engineering a specialty. 12) A highly organized, energetic, thorough, detail oriented, and fast engineer, who always meets all goals and deadlines, set by Management. 13) A team player who enjoys working with other Engineering and Science professionals. 14) Highly developed written and verbal communication skills. 15) 25+ years of project management experience, taking products from concept through R&D, design, testing, tooling, sample manufacturing, UL safety certification, SGS RoHS testing, packaging design including graphic arts design and layout, offshore mass production, and overseas product freight delivery. 16) Has a great deal of entrepreneurial spirit, having done consulting for companies, through engineering R&D companies, for the last 25+ years. 17) Experienced at Design & Development of Electro-Mechanical products. 18) Experienced with injection molding parts, stamping metal parts, die cutting, PCB fabrication, printing, and mass assembly. 19) Highly experienced in design of high volume products. 20) DoD Secret Clearance obtainable if necessary.

I'm an electrical engineer specializing in high-speed analog and digital electronics. • Electronic design and simulation (MATLAB, SPICE, Keysight ADS) • Schematic capture and PCB layout • Test and measurement (DMM, Oscilloscope, Spectrum Analyzer, VNA) • Production documentation (BOMs, Process Flowsheets, Assembly Instructions, Test Plans)

I am a Research Physicist and Engineer with a dual background in Physics and Engineering, specializing in high-performance radar systems, RF environmental surveying, and complex signal processing. With experience at NASA and the Florida Space Institute (FSI), I bridge the gap between theoretical physics and practical hardware implementation, delivering high-precision solutions for demanding technical challenges. Whether you need advanced simulations in Python/MATLAB, FPGA development on Xilinx platforms, or hardware prototyping for RF systems, I bring a rigorous, research-backed approach to every project. Core Competencies - Radar & RF Systems: Design of coherent combining systems (up to 40 GHz/10 kW), passive radar feasibility studies, and antenna array deployment. - FPGA & Embedded Systems: Programming Xilinx ZCU111 and RFSoC 4x2 utilizing the CASPER toolflow for environmental data acquisition. -Signal Processing: Spectrogram generation, cross-correlation analysis for RFI identification, and noise floor characterization using Python and MATLAB. -Simulation & Modeling: Developing machine learning algorithms for satellite data (GOES-R) and simulating gravimetric sensor environments for UAVs. -Prototyping: CAD design (Autodesk Inventor), sensor fabrication, and hardware validation in extreme environments. Professional Highlights -NASA: Developed drone detection and tracking systems using Software Defined Radio (SDR) and the Signal Hound API, creating live spectrograms to secure airspace. -Florida Space Institute: Led the research and requirements definition for a 256-element RF survey system with extreme sensitivity (-200 dBm), delivering critical insights to government customers. -NEXT Lab: Prototyped ultrasonic sensors for high-temperature molten salt systems, validating designs for nuclear energy applications. I am available for complex engineering projects that require a deep understanding of electromagnetics, data analysis, and hardware integration. Let's discuss how I can apply this technical expertise to your next project.

I'm a Senior Embedded Software / Firmware Engineer with 25+ years of experience, specializing in STM, NXP and Xilinx platform firmware, CAN, CANopen/CiA402 motion control, reverse-engineering, and real-time embedded systems. I help fix hard problems, including: - STM32 and NXP, board bring-up, driver development - Xilinx FPGA design and bring-up issues - CANopen communication failures (SDO/PDO issues, object dictionary, NMT (Network Management) , heartbeat) - CiA402 drive state machine problems and motion-control tuning - Hard faults, lockups, illegal memory access, watchdog resets - Real-time timing issues, jitter, and scheduling bugs (RTOS or bare-metal) - Bootloaders, firmware updates, and startup issues - FDCAN and CAN bus filtering, FIFO routing, and interrupt design - System optimization and stability improvements - Architecture and/or design improvements - SPI bus and ADC timing and power issues If your embedded device is crashing, stalling, locking up, misbehaving, or failing to meet deadlines, I can diagnose and repair it quickly. What I deliver * Project proposals and estimates * Root-cause Analysis documentation * Clean, maintainable embedded C/C++ * Fast and accurate debugging * Real-time scheduling and timing corrections * NXP and STM32 HAL/LL driver development * AMD Xilinx Vivado FPGA development * FDCAN, CAN, and CANopen stack configuration and integration * CiA402 motion control implementation * Bootloaders, startup code, low-level drivers * Documentation and long-term fixes Why clients hire me - 25+ years of embedded experience - Deep expertise with STM32 and NXP ARM Cortex-M, and industrial protocols - Specialization in motion control and CANopen, where skilled engineers are rare - Fast response, clear communication, professional results - Ability to join a project mid-stream and quickly stabilize it Embedded Skills - Embedded Systems - Embedded C - Embedded C++ - ARM Cortex-M - STM32 - STMicroelectronics STM32Cube, STM32MX, STM32IDE - STM32 HAL - STM32 LL Drivers - Xilinx Vivado, Verilog, VHDL - Microcontroller Programming - Real-Time Operating Systems (RTOS) - FreeRTOS - Bare-Metal Programming - Device Drivers Communication Protocols - TCP/IP - UDP - FDCAN - CAN Bus - CANopen - CiA402 - RS485 - I2C - SPI - UART - USB Device Firmware - 1553 Debugging & Tools - Hard Fault Debugging - Real-Time Debugging - JTAG/SWD - Logic Analyzer - Oscilloscope Debugging - Segger J-Link - Tracealyzer - Timing Analysis System Architecture - Firmware Architecture - Bootloaders - BSP Development - Memory Management -Low-Level Software - Real-Time Scheduling - Safety-Critical Systems Other - Linux Embedded - CMake - Git - CI/CD for Firmware - Technical Documentation

I have a lot of experience in wireless communication theory and design. I can help in DSP and wireless design, simulation and implementation. I can also offer tutorials and lecturing on electrical engineering subjects. I am also good at technical, thesis and research writings.