I develop complete embedded systems, including firmware, PCB design, IoT solutions, desktop software, and mobile applications. Whether you need a prototype, MVP, or production-ready product, I can support the entire development process from concept to deployment. I maintain an in-house inventory of microcontrollers, sensors, and development hardware, along with a dedicated testing lab. This allows me to start development immediately without delays caused by sourcing components. Microcontrollers & Embedded Platforms ESP32 (All Series), ESP8266, STM32, Raspberry Pi, AVR, PIC, Nordic nRF52, Arduino Communication Protocols BLE, Wi-Fi, Bluetooth, MQTT, NFC, LoRa, RF, RS485, UART, SPI, I2C, CAN, Modbus IoT & Cloud Platforms AWS IoT Core, Azure IoT Hub, Google Cloud, Firebase, DigitalOcean PCB Design & Hardware Development Schematic Design, PCB Layout, Circuit Design, Sensor Integration, Hardware Debugging Development Tools ESP-IDF, ESP-ADF, Arduino IDE, PlatformIO, STM32CubeIDE, SEGGER Embedded Studio, KiCad, EasyEDA, Eagle Additional Expertise Wireless Medical Devices, Healthcare IoT, Wearables, BLE Medical Sensors, Patient Monitoring Systems, React Native Mobile Apps If you're unsure which components or architecture are best for your project, I can help you select the right hardware and software before development begins. Most of my Upwork projects are covered by NDAs, so many of the products I have developed cannot be shared publicly. However, I am happy to discuss my experience, development approach, and how I can help bring your idea to life.

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/RK3588S, RK3568, RV1126, Allwinner, Zynq-7010, Zynq7020, XCZU9EG - 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.

more10 years of expertise in embedded systems and IoT. My skills encompass both software and hardware aspects of embedded systems, including: Raspberry Pi, ESP32,Yun, among others. In terms of hardware, - I have knowledge and experience in PCB prototyping and production. This includes designing and manufacturing . - I have a strong understanding of digital transformation and how it applies to various industries. On the software side, - I have proficiency in developing mobile applications for both iOS and Android via React native or thunkable. - I have a diverse range of programming skills, including Node.js, PHP, HTML, CSS, C++, nodejs, Bash. - mange servers and networks, ensuring the smooth operation and connectivity of various systems. I am eager to take on creative challenges that allow me to showcase my expertise while making a meaningful impact.

Your hardware is only the beginning. The real challenge is making it work reliably in the real world. If you have a hardware prototype that needs firmware, a device that needs debugging, or an existing product that isn’t behaving as expected, I can help turn it into a stable, functional system. I develop embedded firmware that makes hardware sense, communicate, process data, and respond exactly as your product requires. ​I specialize in Embedded Firmware Development, Embedded Systems, Microcontroller Programming, Embedded C/C++, FreeRTOS, and low-level Driver Development. I work directly with ESP32, STM32, Raspberry pi and Nordic nRF52 microcontrollers. My whole approach is pretty simple: keep it clean, keep it low-power, and make sure it runs deterministic and rock-solid when it actually counts. No drama, no crashing, just cold, reliable performance built for production. ​Whether you're starting a new device from scratch, setting up a wireless IoT setup, running an industrial monitoring rig, or just need me to clean up someone else's broken, buggy code—I’ll deliver modular, efficient solutions tailored straight to your hardware. I help with the following: Embedded Firmware & Embedded Systems • Firmware Development • Embedded Systems Development • Microcontroller Programming • Embedded C & C++ • Bare-Metal Firmware • FreeRTOS Development • Driver Development • BSP & HAL Development • Interrupt Service Routines (ISR) • Peripheral Driver Development Microcontrollers & Platforms • ESP32 • STM32 • Nordic nRF52 (nRF52840, nRF52832) • Raspberry Pi • Arduino Wireless & Internet of Things (IoT) • Bluetooth Low Energy (BLE) • Wi-Fi • LoRaWAN • Internet of Things (IoT) • Wireless Sensor Devices • Low-Power Embedded Systems Hardware Interfaces & Communication • UART • SPI • I2C • CAN Bus • RS485 • Modbus Advanced Embedded Development • Sensor Fusion • Radar Signal Processing • Embedded Linux • Python for Testing & Automation • Firmware Debugging • Logic Analyzer & Protocol Analysis • Power Optimization What You Receive • Production-ready Embedded Firmware • Clean, modular, and well-documented Embedded C/C++ code • Reliable FreeRTOS-based applications • Efficient low-level Driver Development • Hardware abstraction and peripheral integration • Deterministic real-time performance • Low-power firmware optimization • End-to-end firmware debugging and protocol troubleshooting • Scalable firmware designed for long-term maintenance and future expansion Bring your hardware to life with reliable, production-ready firmware. Whether you’re developing a new board or troubleshooting an existing design, I can help with production ready firmware development. Send me your requirements, and let’s build it and let's get to work.

One stop solution for Electronic Product Development. Component selection, Circuit Design, Schematic design, PCB layout, PCB Assembling, Prototyping, Firmware development, Testing, Cloud Integration, Mobile Application Development. Expertise in IoT product development and Firmware update Over The Air (OTA). Languages: C, C/C++, Python, HTML, Javascript Arduino Raspberry Pi ESP32, ESP8266 (ESP-NOW, ESP-MESH, ESP-MATTER, ESP-IDF, ESP-ADF) NRF51822, NRF52840 IOT Gateways ROS Remote Monitoring & Controlling WiFi, BLE, Ethernet, GSM/GPRS, 2G, LTE, LORA, LORAWAN, NB-IOT, DLMS, Profibus, IEC-104 HMI Display GUI Development Nextion, DWIN Displays Home Assistant, ESP-HOME UART, SPI, I2C, ADC, DAC, RS-232, RS-485 Micro SD, Thermal Printer, Motors, Relays, Valves MODBUS RTU & TCP/IP CANBUS Schematic and PCB Layout Design ARM Cortex M3-M4 STM32F1, STM32F4, TM4C123G(TIVA C) ATmega 8-16-32-128-256 Renesas RL78 Series MCUs PlatformIO, CubeMX, Keil, Arduino, CCS, Atmel Studio, CS+ Altium, Eagle CAD, KiCAD, EasyEDA

Hey! I’m an embedded systems engineer focused on firmware and PCB design for IoT and consumer devices. I work across microcontroller firmware, hardware design, and system integration to build reliable, production-ready electronics. I help clients turn complex electronics ideas into working devices that solve real problems. What I Offer: - Embedded firmware development for microcontrollers (STM32, ESP32, Nordic, PIC/ATmega) - PCB design & layout for analog, digital, and mixed-signal circuits - IoT solutions with wireless connectivity (Wi-Fi, BLE, LoRa) and OTA/FOTA updates - Prototyping, testing, and manufacturing support, including signal & power integrity checks - Smart system integration with AI/TinyML features for sensor analytics and automation - Industrial control support (PLC programming, SCADA, motor drives, CANBUS) as needed Skills: - MCUs & Firmware: Embedded C, Firmware, Embedded System, Microcontroller Programming, STM32, ESP32, Nordic, PIC/ATmega, RTOS - PCB & Hardware Design: Altium Designer, KiCad, mixed-signal PCB design, signal & power integrity, manufacturing support (experience with PADS and Cadence Allegro) - IoT & Wireless: Internet of Things (IoT), Wi-Fi, BLE, LoRa, Raspberry Pi, Arduino - AI & Smart Systems: Python, TinyML / On-device AI, Sensor analytics, IoT automation - Control Systems (Additional): Control Engineering, PLC Programming, SCADA, Motor Drives, CANBUS I combine hardware design, firmware, and system integration to deliver electronics that work reliably in the real world. My goal is to help clients build functional, production-ready devices efficiently and confidently.

I am an Electrical/Embedded Firmware Engineer with 9 years of experience specializing in developing robust firmware solutions. My work encompasses a wide range of projects, where I have successfully contributed to enhancing product features and functionality. I excel in problem-solving and practical thinking, always aiming to deliver high-quality results that align with client objectives. My expertise spans various industries, allowing me to adapt quickly and bring a fresh perspective to every project. If you are looking for a skilled engineer who can translate complex requirements into effective firmware solutions, let's connect and discuss how I can add value to your team.

I’m an Embedded Systems & IoT Engineer with 4+ years of experience in electronics design, PCB design and development, and microcontroller programming. I help clients transform ideas into reliable, production-ready hardware solutions — from concept to working prototype. 🔧 What I Offer 🔹 PCB Design & Prototyping (KiCad, Altium, EasyEDA – optimized for JLCPCB/PCBWay) 🔹 Microcontroller Programming (ESP32, Arduino, STM32, Atmega) 🔹 SBC & Linux Systems Integration (Raspberry Pi, Radxa) 🔹 Firmware Development (C/C++, ESP-IDF, Arduino IDE, Linux setup, Python) 🔹 IoT & Wireless Systems (Wi-Fi, Bluetooth, BLE, LoRa) 🔹 Sensor Integration & Control Systems (motion, audio, automation, robotics) 🔹 Analog & Digital Circuit Design (simulation & testing with Proteus, LTSpice, Multisim) 💡 Why Clients Choose Me ✅ Top Rated Seller on Upwork ✅ Combine Hardware + Firmware expertise — no need for multiple freelancers ✅ Reliable, Scalable, and Production-ready designs ✅ Full deliverables: Code, PCB files, BOM, Documentation ✅ Clear communication and fast turnaround 🏆 Proven Work • Motion Tracking Device: Built with ESP32-C3 + motion sensor, real-time speed calculations, Wi-Fi data streaming. • Industrial Systems: OBD2 interfaces & control logic development • SBC Projects: Raspberry Pi & Radxa hardware/software integration (Custom PCBs and Firmware design) • IoT Home Automation System: ESP32/Arduino-based system with wireless sensor integration for smart control. • Robotic Arm Controller: Arduino-powered automation with custom PCB for motor drivers and sensors. Whether you need a custom IoT device, compact PCB layout, or a complete embedded prototype, I deliver results that are reliable, scalable, and optimized for your needs.

I design and build connected hardware — schematic, PCB layout, and firmware — with a focus on IoT, GPS tracking, motor control, and wireless products. ━━━━━━━━━━━━━━━━━━━━ RECENT WORK ▸ Wearable GPS rescue tracker — ESP32-S3 + SIM7670G (LTE Cat 1 with integrated GNSS). Full schematic, PCB, BOM, and firmware. Under USPTO provisional patent. ▸ Audio subsystem around SIMCom A7670G for a call-capable device — class-D amplification, MEMS microphone selection, end-to-end schematic and layout. ▸ Custom motor control PCBs — RP2350A + IR2104 + N-MOSFET H-bridge, with PIO-based complementary PWM and current sensing. ▸ ESP32 power-gating circuit with fingerprint-activated load switching. ━━━━━━━━━━━━━━━━━━━━ WHAT I DO WELL ▸Cellular & wireless integration LTE (SIMCom A7670G / SIM7670G), GNSS, BLE 5.0, LoRa, Wi-Fi — including the messy parts: power sequencing, antenna placement, audio paths, and certification considerations. ▸PCB design end to end KiCad, EasyEDA, Altium. Schematic capture through DFM-aware layout, BOM, fabrication files, and rework. Comfortable with multi-layer boards, RF routing, and tight power budgets. ▸Firmware that ships C/C++, Arduino, MicroPython, CircuitPython. I write firmware that's still debuggable six months later — not just the demo that works on my desk. ▸Hardware/software integration The bugs that live between the schematic and the code are usually mine to fix either way, so I'd rather own both sides from the start. ━━━━━━━━━━━━━━━━━━━━ BACKGROUND BSEE from IIUI (Islamabad). Freelancing since 2022 across embedded systems, PCB design, and IoT product development. Flexible on working hours — comfortable with US, EU, and APAC schedules. ━━━━━━━━━━━━━━━━━━━━ If you're building a hardware product and want one person who can take it from a napkin sketch through working prototype — schematic, PCB, firmware — send me the brief.

Hello! I’m an Embedded Systems Engineer with a Bachelor’s degree in Electronics & Communications Engineering, specialized in Embedded Systems Development and IoT solutions. I help clients design and build reliable embedded systems from idea → prototype → final implementation, including microcontroller programming, IoT connectivity, sensor integration, and PCB design. ✅ What I can help you with: ✅ Embedded C / C++ Programming (clean, efficient, and scalable code) ✅ Microcontroller Programming (AVR, PIC, STM32, 8051) ✅ ESP32 / ESP8266 Projects (Wi-Fi, IoT dashboards, sensors, automation) ✅ Arduino Development (Uno, Nano, Mega) ✅ Microcontroller Interfacing using UART, I2C, SPI, ModBus, and CAN protocols ✅ PCB Design & Hardware Integration using: • Altium Designer • KiCad • Autodesk Eagle • EasyEDA ✅ Circuit Design, Simulation & Debugging using: • Proteus Professional • Autodesk Tinkercad • Fritzing ✅ Projects I’ve worked on: 🔹 Fertigation System for Greenhouses 🔹 Climate Monitoring and Control System for Greenhouses 🔹 Dual Axis Solar Tracking System 🔹 IoT-Based ECG Monitoring System 🔹 Smart Parking System 🔹 Smart Irrigation & Water Level Monitoring 🔹 Intelligent Lighting System 🔹 Automated Garage System 🔹 Solar Panel Cleaner 🔹 Access Control System (PIC18F4520) 🔹 RTC + Temperature/Humidity Monitoring 🔹 Embedded Converters (8051) 🔹 Stopwatch System (ATmega328P) ✅ Why clients choose me: ⭐ Proven experience in Embedded Systems and IoT development ⭐ Reliable delivery with professional documentation ⭐ Quick debugging, optimization, and clean code ⭐ Clear communication and client-focused support 📩 Feel free to message me anytime — I’d be happy to discuss your project and help you build your next Embedded & IoT solution.