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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.

Hello! I’m Ben, a hardware and firmware expert with 8+ years of experience in designing hardware, programming embedded systems, and developing high-performance software solutions. My goal is to provide innovative, reliable, and high-performance solutions that meet your needs. With a strong track record on Fiverr (Level 2, 5 stars) and Upwork (Top Rated Plus, 5 stars), I have successfully delivered top-tier service to over 100 clients. What I Offer 1. End-to-End Embedded & Hardware Solutions - Advanced PCB Design & Hardware Development: Expertise in schematic capture, PCB layout, and multi-layer board design for reliable, high-performance, and manufacturable products. Experienced with KiCad, Altium, OrCAD, and Eagle. - High-Speed Design: Strong experience in 1–12 layer PCBs, including DDR3/DDR4/LDDR4, PCIe, USB (2.0/3.0/3.1/3.2), HDMI and 10/100/1000/10Gbase-T1 Ethernet. - Microcontrollers & SoMs: Firmware and hardware development for ARM Cortex-M3/M4 (STM32, ESP32, Nordic nRF52/53/91 series); custom boards for Raspberry Pi CM4/CM5, Orange Pi, iMX8, Jetson Nano/Xavier/Orin, RK3588, RK3568, RV1126, Allwinner, Zynq-7010. - Power & Hardware Integration: Experience in DC-DC, AC-DC, Buck, Boost, and Flyback converters, along with hardware design involving audio, RF modules, PA, LCD, filters, RFID, touch screens, and LVGL-based interfaces. - Prototype, Testing & Validation: Full support for board bring-up, debugging, validation planning, and functional testing to ensure hardware works reliably in real-world applications. - Manufacturing & Prototyping Support: Preparation of BOM, Gerber, and manufacturing-ready files, with hands-on support for prototype production and manufacturing through JLCPCB and PCBWAY. 2. Robust Firmware Development - Languages & Development: Strong embedded firmware development in C/C++, Python with experience using Visual Studio Code, STM32CubeIDE, Arduino IDE, ESP-IDF, and Segger. - Communication Protocols: Proficient in USB, UART, I2C, SPI, I2S, RS232, and RS485, enabling reliable communication across embedded systems and connected devices. - Wireless & Connected Systems: Experience with BLE, BLE Mesh, ZigBee, UWB, LoRa, NB-IoT, 4G LTE, Wifi, WiFi Mesh, and NFC for IoT and wireless product development. - Sensor: light sensor, CO, Smoke Sensor, Dust Sensor, Air Sensor, pH sensor, IMU sensor, Accelero, Gyro sensor,... - UI/UX for Embedded: Figma, TouchGFX, LVGL for STM32, ESP32, Raspberry Pi. - Motors Control: BLDC, Stepper, Servo, DC Motors - Robotics: Expertise in ROS/ROS2 for applications like AGV, AMR, 6-axis robots. Some of my product that I have designed and released to the market: - Home IP Camera: SoC-based design with DDR3 RAM, Ethernet/Wi-Fi streaming, CMOS image sensor, IR LED array, IR-cut control, USB, and MicroSD - Smart Home Products: Home Gateway with Ethernet, Wi-Fi, Zigbee, and TFT LCD; Smart Switch with capacitive touch, Zigbee, power metering, and AC load control - Tablet Mainboard: RK3399-based board with DDR3, eMMC, touch screen, LTE. - Smart Water Meter: BLE/Wi-Fi design with TI MCU. - Wearable Devices: Low-power wearable designs with wireless connectivity, sensors, and battery management - High-Performance ESC for Drones: Real-time motor control design for efficient and stable drone operation - Custom SBC with AI Module: Raspberry Pi-based SBC solutions with integrated AI capabilities And a lot of other products. With our experience and expertise, I’m confident I can provide tailored solutions to help you complete your project and release your product to the market . I look forward to the opportunity to work with you.

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 engineer by profession, passionate and specialize in creating Schematic and PCB design or Layout in multilayers. I have 20+ years experience of pcb layout in Altium Designer. PCB Designing, Product designing, Reverse Engineering, Creative Solutions with Electronic. I design a lot of devices based on ESP32S3 like also other MCU's. I can provide very good solutions to save money but keep highly spec product. I have a company based in UK. I can supply fully tested prototype and run a production for small and medium batches. I can provide a firmware in C and other languages if necessary. All types of MCUs ( Atmel, PICs, ARM, STM etc), programming and debug. Also for products I can offer 3D design and making a prototype.

✅ 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

Electronics Engineer & CEO, StepTech LLC | Full-Stack Product Development & Manufacturing Specialist I'm an accomplished Electronics Engineer with over 7 years of experience, and as the CEO of StepTech LLC, I specialize in guiding professional commercial products from initial conception to successful production. My business is built on delivering innovative, manufacturable electronic solutions for a diverse client base across medical, pharmaceutical, and entertainment industries. My expertise covers the entire product development lifecycle, bridging the gap between hardware and software. I excel at Product Design and Development, translating client visions into tangible solutions through advanced 3D printing (including industrial-grade FDM and 12k resin capabilities) for rapid, high-fidelity prototyping and user feedback integration. I also have an in house CNC machine for metal and delrin part creation. In Hardware Engineering, I possess a strong understanding of components, proficiently manage Bills of Materials (BOMs), generate production-ready Gerber files, and employ precision SMD soldering techniques. My Software Development skills enable me to create user-friendly and intuitive applications that seamlessly integrate with custom hardware. I am dedicated to exceeding expectations by delivering projects efficiently and effectively. My commitment to clear, consistent communication ensures a collaborative and successful partnership, from concept validation through to market readiness.