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I am a senior electronics and embedded systems engineer with 47 years of experience in hardware design, firmware development, PCB layout, debugging, testing, and product development. I help clients turn electronic product ideas, prototypes, and hand-wired circuits into working embedded systems and manufacturable PCB designs. Typical projects I can help with include: * ESP32 and STM32 / STMicroelectronics MCU-based products * Power conversion and low-power battery-powered product design * Custom wireless and RF communications, including LoRa and ESP-NOW peer-to-peer networking * Circuit design and component selection for manufacturing * Schematic entry and multi-layer PCB design. * Ordering fabs and coordinating assembled boards. * C/C++ firmware for sensors, displays, audio, wireless, and control systems * Embedded graphics and touchscreen user interfaces using LVGL * Digital audio filtering, FFT spectrum analysis, and voice activity detection * Cloud API integration for speech-to-text, text-to-speech, and language translation * Embedded bus and peripheral interfaces: I2C, SPI, I2S, UART, RS-485, CAN, and SD/MMC * Prototype debugging and board bring-up * Converting breadboard prototypes into clean PCB designs * Design reviews before manufacturing * Analog and digital circuit troubleshooting * Production-oriented improvements for reliability and manufacturability I have founded and managed engineering companies and consulting firms, led technical teams, and helped bring electronic products from initial concept through prototype, testing, manufacturing, and production. For clients, this means fewer design mistakes, faster debugging, lower development risk, and a clearer path from concept to a working, manufacturable product.

I have designed 30+ real-world components used in defence systems, DC fans, and kitchen appliances handling everything from design and simulation to fabrication and testing myself, so you get complete, working hardware solutions from one expert. I am an RF, PCB, and Embedded Systems Engineer with strong hands-on experience in building complete hardware products. I have worked on real-world RF systems including high-power amplifiers, transmitter-receiver designs, RF filters, and antenna systems for communication and defence-related applications. I specialize in RF design, antenna design and testing, wireless communication, and high-quality PCB design including multilayer boards using Altium Designer and KiCad. I also work on circuit design, analog electronics, RF filters and amplifiers, and embedded systems using STM32, ESP32, and Arduino. I have successfully delivered reliable, tested, and production-ready designs that perform well in real-world conditions. For large and challenging projects, I collaborate with a trusted team of highly skilled professionals, so we can deliver a complete, fully working product including hardware, software, and mechanical design all in one place. ✅ RF & Microwave Circuit Design ✅ RF System Design (Transmitter & Receiver) ✅ RF Front-End Design ✅ RF Power Amplifier Design (Low, Medium & High Power) ✅ LNA (Low Noise Amplifier) Design ✅ RF Filters Design (Bandpass, Low-pass, High-pass) ✅ Impedance Matching & RF Tuning ✅ Antenna Design (Patch, Monopole, Dipole, Custom) ✅ Antenna Simulation & Optimization ✅ Antenna Testing & Performance Measurement ✅ Wireless Communication System Design ✅ RF Signal Chain Development ✅ Frequency Planning & Spectrum Analysis ✅ PCB Design (Single Layer, Double Layer, Multilayer) ✅ High-Speed PCB Design ✅ RF PCB Layout & Controlled Impedance Design ✅ Schematic Design & Circuit Layout ✅ PCB Design using Altium Designer, KiCad & EasyEDA ✅ Gerber File Generation & Manufacturing Support ✅ Design for Manufacturing (DFM) & Assembly (DFA) ✅ PCB Debugging & Optimization ✅ Electronic Circuit Design ✅ Analog Circuit Design ✅ Amplifiers & Signal Conditioning Circuits ✅ Sensor Interface Circuit Design ✅ Power Electronics Circuit Design ✅ Hardware Troubleshooting & Debugging ✅ Embedded Systems Design ✅ Embedded Hardware Development ✅ Microcontroller-Based System Design ✅ Microcontroller Programming (STM32, ESP32, Arduino, AVR) ✅ Embedded C & C++ Development ✅ Firmware Development ✅ IoT Device Development (WiFi, LoRa, ESP32) ✅ Raspberry Pi-Based Projects ✅ FPGA Design & Development ✅ Verilog / VHDL Based Design ✅ Digital System Design on FPGA ✅ Simulation & Timing Analysis ✅ FPGA Prototyping & Testing ✅ Electromagnetic Simulation (HFSS, CST, ADS) ✅ Circuit Simulation (LTspice, PSPICE, MATLAB) ✅ EM & RF Co-Simulation ✅ Signal Integrity & EMI/EMC Analysis ✅ Hardware Prototyping ✅ Product Development from Concept to Prototype ✅ Functional Testing & Validation ✅ Performance Measurement & Optimization ✅ Test Results Analysis & Reporting ✅ Technical Writing (Engineering Reports & Documentation) ✅ Research Paper Writing (IEEE Format) ✅ Project Documentation & Reports ✅ RF & Electronics Content Writing ✅ Complete Product Design (Hardware + Embedded + RF + FPGA) ✅ Prototype to Production Support ✅ Real-World Testing & Field Validation ✅ Engineering Simulation & Optimization

Top 5% Talent on Upwork | Embedded Systems & PCB Design Engineer | Electrical Engineering | 100% Job Success | 5+ Years Are you looking for an experienced Embedded Systems, PCB Design & Electrical Engineering specialist who can transform your idea into a fully working smart device? You're in the right place. I specialize in Circuit Design, PCB Design, and Electronic Design handling the full path from schematic and multi-layer PCB layout, to firmware and Microcontroller Programming, to wireless integration, testing, debugging, and final prototype support. Whether it's a single board or a complete Internet of Things Solutions Design, I take it from concept to production-ready hardware. Whether you're building a: ✔ Smart Home Device ✔ Wearable Product ✔ Industrial Sensor Node ✔ BLE Tracker ✔ WiFi Enabled Controller ✔ Battery Powered Embedded System ✔ Custom Wireless PCB Product ◆ Core Expertise ▸ Embedded Systems & Electronics ✓ Microcontroller Programming: STM32, ESP32/ESP8266, nRF52 ✓ Ultra-Low Power Design: sub-µA standby, long-life battery systems ✓ PCB Design & Circuit Design: multi-layer, high-density, signal integrity optimized ✓ Electronic Design: schematic capture, BOM, design for manufacturing ✓ Embedded Firmware: UART, SPI, I2C, real-time systems ✓ Wireless: BLE, WiFi, LoRa, MQTT ✓ Motor Control: PID, stepper/servo systems ▸ System Development ✓ Hardware + Firmware integration ✓ Internet of Things Solutions Design (device to cloud) ✓ Debugging & production validation ✓ Power profiling & optimization ✓ OTA, bootloaders, custom protocols ◆ Tools & Technologies ▸ Firmware: C, C++, Python, FreeRTOS ▸ PCB Design: Altium Designer, KiCad ▸ Hardware: JTAG, Oscilloscope ▸ Communication: UART, SPI, I2C, RS485, Modbus ▸ IoT: BLE, WiFi, LoRa, MQTT ◆ Why Work With Me ✓ Electrical Engineering background with production focus ✓ Ultra-low power specialist (battery-operated systems) ✓ Full-stack embedded (hardware + firmware) ✓ Production-ready design focus ✓ Clear communication & reliable delivery ✓ Post-project support I can engineer it professionally, efficiently, and production-ready and connect your hardware seamlessly to mobile apps, gateways, or cloud platforms.

I am an electronics and firmware developer with experience in PCB design, firmware development, prototyping and SMD assembly. My journey started with hand crafting single sided PCBs — giving me a strong practical foundation from the ground up. PCB Design: 2 and 4 layer PCB design in KiCad 8,Kicad 9(Soon migrating to Kicad 10) & EasyEDA(Standard & Pro version) . Former EagleCAD user Schematic to manufacturing ready layout Custom footprint creation Gerber, drill, pick and place and BOM files Full submission support for JLCPCB(PCB & PCBA) and similar manufacturers Assembly & Prototyping: SMD soldering — 1206-0402 passives, QFN, TSSOP (except BGA) Through hole soldering Small batch prototype assembly Component procurement support Firmware & Connectivity: Microcontrollers — ESP32, ESP8266, Arduino, AVR, 8051 Cellular — Quectel EC25 & SIMCom SIM7672 with MQTT SSL/TLS Wireless — LoRa, WiFi, Bluetooth, GSM GPS — Ublox & Quectel module integration Displays — OLED, TFT, capacitive touch Protocols — I2C, SPI, UART, MQTT SSL/TLS, HTTP REST Motor drivers, WS2812 LED arrays, power circuits GPS- Quectel L89, Ublox M10S Special - WS2812 Led Projects include: GPS trackers, GSM security systems, water level controllers, , line followers, obstacle detection robots, WS2812 LED arrays and various ESP32 and Arduino IoT devices. I am a full time freelancer committed to clear communication and timely delivery — working with hobbyists, startups and commercial clients alike. Feel free to reach out!

✅ Lead System Design Engineer with 14 years' of experience ✔︎ TOP RATED PLUS | 80+ happy customers 🚀 Providing turn-key solutions from idea to production: Electronics, Firmware, Mobile Software, Prototyping, and Manufacturing. HARDWARE: - Schematic Design: Digital Systems, Analog boards, Power electronics. - Environment: Altium Designer, Kicad - PCB Layout: 1 - 18 layers, 3D View, and Manufacturing Service in JLCPCB and PCBWAY - Outputs: Component selection, BOM generation, Manufacturing documents. FIRMWARE: - FPGA firmware in VHDL on Xilinx/Altera FPGA and SoC, - MCU firmware in C/C++ for ARM, ST, TI, NXP, Atmel, PIC, Arduino, PSOC, ESP32, and NRF series. - Bluetooth, Bluetooth Low Energy (BLE), and wireless module programming. SOFTWARE: - Embedded Linux Yocto, Buildroot, Busybox - Embedded coding bare-metal C, Freertos, ThreadX, UC-OS - QT C++ - Mobile apps: native apps for Android (Java) - Backend: Python - User interface (UI, UX) PROTOTYPING: - PCB Prototype manufacturing, debugging, and validation; - Consultation on any aspect of design and manufacturing. HIGHLY SPECIALIZED IN **************************************************** AUTOMOTIVE / ELECTRIC VEHICLES: - Body Control Module (BCM) - Requested Wireless System - Powertrain Engine Control Unit (Gasoline/Diesel ECU) - Door Control Unit - Canbus Gateway TCP/IP (CANFD) - Instrumental Cluster for Infotainment - Entertainment Systems with the application processor - Video capture and monitoring systems CONSUMER: - IoT projects, sensors, wearable electronics, smart-home systems - Medical Electronic Goniometer INDUSTRIAL: - High-reliability systems for critical applications (Robotics, Oil and Gas, Automation); - Micro-controller and FPGA-based control systems - Power Supplies (AC/DC/AC) and Electric Drives (240/480VAC) - MPPT and Inverter for energy conversion systems - Analog Video: CVBS, Composite, PAL, NTSC, AHD - Digital Video: CSI2, DSI, TI FPD-Link3, HD/3G-SDI WIRELESS: - Bluetooth and BLE-enabled devices (Bluetooth 4.0/4.2/5.0, BLE) - 2.4Ghz radio transmitters (WiFi, Bluetooth, Radio) - GSM Tracking system - GPS capture module - LORA Products ************************************************** *MCU* : Freescale MPC55xx/MPC56xx, ARM Cortex M3/4 - ARM A8/9, Motorola 68HC11, Motorola 68HC12, TI DSP TM320C6713, TI CC2530 8051RF Cores, iMX51/53/6/8 Multimedia Processors, TI Sitara AM335 Industrial cores, Intel Atom, Infenion TC389/399, STM32 M0/M4/F7/H7, MSP430, Ambarella S5L, Nextchip NVP6134, NVP6324 AHD, ESP32, NRF52, PSOC6. *Operating Systems* : Embedded Linux, RTOS *FPGA and SoC* : VHDL, Quartus, Xilinx ISE, Vivado. Xilinx Spartan-3/6, Zynq-7, Ultrascale MPSOC. *RADAR* : Acconeer A111, A121 Innosent SMR RFBeam CDM324 *BLUETOOTH* : TI CC series, Microchip RN42 *Communications* : TCP/IP, RS232, RS422, RS485, CAN-BUS, SPI, I2C, One wire, QSPI, Modbus *Testing* : Vectorcast, Polyspace Unit Test, QAC Statical Code Analysis *Development Environment* : CodeWarrior, Eclipse, Visual Studio, QT, Keil, IAR, Understand *Configuration management* : SVN, JIRA, IBM Rational DOORS, IBM Clearcase/ClearQuest *Specialties* : DO-178C certification, aerospace, real-time software, model-based software design, HMI design, powertrain control units, ETPU, Automotive fault management regulations (OBD, J1939) and routines, Video capturing and monitoring interfaces such as MIPI csi2, dsi, and dual lvds. Developing high-volume electronic devices, IoT products Tags: Electrical Engineer, Electronics, Hardware Design, Firmware Development, PCB Design, PCB Layout Service, Board Layout, Schematics, Altium Designer, IoT, Internet of Things, Power Electronics, Bluetooth, BLE, TI, Texas Instruments, Freescale, NXP, FPGA, SoC, VHDL, Verilog, Xilinx, Altera, VHDL, C, C++, MCU, RTOS, Microcontroller, prototype, validation, Enclosures, BMS, SolidWorks, Android, Java, Mobile Apps, Database, Python. Services: - Embedded software design in C/C++, - PCB schematics and layout design, all fabrication outputs will be provided, - GUI design with Qt C++, - Embedded component search, - Engineering system design, - Android and IOS application development for Embedded devices, - IoT, Gateway, PLC automation for industry-grade projects, - Embedded Linux device driver, root file system, video streaming, qt embedded, etc. - Camera and video monitoring system design - FPGA SW design - Hardware Design/Component BOM - Turnkey Product Design

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.