Hire the Best Blueberry Systems RELAY Specialists

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Marwan M.

Cairo, Egypt

$25/hr
5.0
26 jobs

I am a Mechatronics and Embedded Systems Engineer with 5+ years of experience in designing and developing industrial, IoT, and embedded solutions. I specialize in firmware development, embedded Linux, RTOS, C/C++/Python programming, and electronics integration. I help startups and innovators turn ideas into fully functional, sellable products, guiding projects from concept to prototype to production. My expertise spans microcontroller programming, PCB design, sensor & actuator interfacing, and high-performance system integration. Whether it’s an industrial automation system, wearable IoT device, or robotics project, I combine hardware and software skills to deliver reliable, efficient, and market-ready solutions. - Programming & Embedded Systems: C/C++17, Embedded C, Python, Rust, RTOS, AUTOSAR, Linux/QNX embedded, device drivers, multithreading - Microcontrollers & Boards: ARM Cortex-M (Tiva C, STM32, NUCLEO), AVR (ATmega), PIC, ESP32/ESP8266, Arduino, Raspberry Pi, Jetson Nano - Communication & Protocols: UART, SPI, I2C, CAN/CAN FD, LIN, Ethernet/UDP, Modbus RTU/TCP, I2S - Hardware & Electronics: PCB design (Altium, Proteus), sensor & actuator interfacing, DC/Stepper/Servo motor control, power management, control systems, signal conditioning - Tools & Simulation: Bazel, Git, MATLAB scripting, Simulink, Ansys, VREP, ROS, OpenCV, dlib, LabVIEW

  • Mechatronics
  • Automation
  • Embedded System
  • Embedded Operating System
  • FreeRTOS
  • Microcontroller Programming
  • ARM Microcontroller
  • ARM Cortex-M
  • AVR Microcontroller
  • Embedded C
  • Arduino
  • C
  • PCB Design
  • Circuit Design
  • Raspberry Pi
Nguyen Dinh B.

Hanoi, Vietnam

$25/hr
5.0
55 jobs

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.

  • PCB Design
  • KiCad
  • Altium Designer
  • nRF52
  • STM32
  • ESP32
  • Raspberry Pi
  • FPGA
  • Hardware Design
  • EasyEDA
  • OrCAD
  • nRF52832
  • Arduino
  • LoRa
  • Embedded System
  • Firmware
  • Embedded Linux
  • Schematic
  • Bluetooth LE
  • WiFi
Chirantan K.

Nashik, India

$10/hr
4.9
37 jobs

I am an electronics engineer with a decade of experience in schematic design, PCB layout, and firmware development. After founding a successful tech startup in 2010, I am now seeking to expand my reach through online platforms. My company specializes in the design and development of customized consumer and industrial electronics projects, offering state-of-the-art solutions and dedicated computer systems. Over the years, we have successfully designed various systems, including data loggers, data monitors, data acquisition systems, data processors, process controllers, and IoT solutions tailored to our clients' specific needs. Our expertise spans microcontrollers, microprocessors, FPGAs, SoCs, and System-on-Modules (SoMs). We are also proficient in wireless technologies such as XBee, BLE 4.0, BLE 5.0, GSM, and LoRa. Services we offer: 1. Component Engineering 2. Schematics and PCB design 3. Firmware development 4. Prototypes and Mass production 5. Vendor Co-ordination Deliverables we provide include: 1. PDF Documentation: Schematics, PCB artwork, and 3D views of the PCB. 2. Source Files: Schematics and PCB files in Altium format. 3. 3D STEP File: A detailed representation of the PCB. 4. Gerber Files: For manufacturing. 5. NC Drill Files: For precise drilling specifications. 6. Bill of Materials (BOM): Compiled from verified vendors and suppliers such as Mouser, Digi-Key, and JLC, ensuring reliability and consistency over time. 7. Firmware/Software: Including codes and sketches tailored to your specifications. 8. Prototypes and Mass Production: Comprehensive support from concept to production. We prioritize compatibility with leading vendors like Mouser, Digi-Key, LCSC, and JLCPCB in our BOMs, facilitating a comparative analysis of available components and expediting the prototyping and mass production processes. Additionally, we ensure that selected components are stable and widely available, mitigating concerns about obsolescence or stock shortages. I look forward to the opportunity to collaborate and contribute to your project’s success.

  • Internet of Things Solutions Design
  • Robotics
  • ESP32
  • Arduino
  • Raspberry Pi
  • PCB Design
  • Embedded C
  • Embedded System
  • Amplifiers & Filters
Muhammad A.

Faisalabad, Pakistan

$20/hr
4.9
42 jobs

I help startups, businesses, and innovators build IoT and embedded systems using Raspberry Pi, ESP32, and custom electronics. With 10+ years of engineering experience, I turn ideas into reliable prototypes and production-ready solutions from hardware and firmware development to automation and deployment. My expertise includes: ✓ Raspberry Pi Development ✓ ESP32 Firmware & IoT Solutions ✓ PCB Design & Prototyping ✓ Sensor Integration & Automation ✓ Embedded Linux & Remote Systems ✓ Industrial Monitoring & Control What I Can Do for You: 🔹 Embedded & IoT Development Design and develop smart connected devices, automation systems, and embedded solutions using Raspberry Pi, ESP32, Arduino, and industry-standard communication protocols. Examples: • IoT monitoring and control systems • Remote device management • Sensor-based embedded products • Edge computing applications 🔹 PCB Design & Hardware Development Create complete hardware solutions including schematic design, PCB layout, component selection, and manufacturing-ready files. Deliverables: • Schematics • PCB Layout • Gerber Files • BOM Preparation • Prototype Support 🔹 Automation & Control Systems Develop reliable automation solutions with sensor integration, machine control, data acquisition, and industrial communication. Examples: • Process automation • Industrial monitoring systems • PLC and controller integration 🔹 Electrical & Embedded Engineering Support product development through circuit design, embedded integration, troubleshooting, and technical documentation. Why Clients Work With Me: ✔ Strong engineering and problem-solving approach ✔ Clear communication and transparent updates ✔ Reliable and scalable solutions ✔ Focus on quality and long-term maintainability ✔ End-to-end support from concept to deployment Whether you're building an IoT product, developing a custom embedded system, creating a new PCB, or automating an existing process I’m here to help turn your concept into a working solution. Let’s discuss your project and build something great.

  • Linux
  • ESP32
  • Raspberry Pi
  • ESP8266
  • Home Automation
  • Circuit Design
  • Digital Electronics
  • Arduino
  • Electrical Engineering
  • Embedded System
  • Internet of Things
  • PCB Design
  • Virtual Assistance
Ehsan S.

Toronto, Canada

$49/hr
4.9
4 jobs

Experienced R&D Engineer with over 10 years in the Electronic and Software Development .With my technical skills and experience, I am able to tackle complex problems and drive the development of cutting-edge technology. Skills: - Firmware development for microcontrollers and processors - IOT application development - Wireless module drivers and application - RF, Bluetooth/BLE, WiFi - Software Development in C ,C++ , C# - Schematic Design: Digital Systems, Analog boards, Power electronics. - TCP/IP, RS232, RS422, RS485, CAN-BUS, SPI, I2C, One wire, QSPI, Modbus

  • Embedded C
  • PCB Design
  • C++
  • Altium Designer
  • STM32
  • ESP32
  • Optical Engineering
  • C#
  • Digital Interface
  • UI Graphics
  • UI/UX Prototyping
  • Git
  • GUI Design
  • Modbus
  • Database
Ezra U.

Athens, Georgia

$45/hr
4.4
55 jobs

🧠 Embedded systems architecture 🟩 Custom PCB design (prototype through production) 💻 Firmware development (C, C++, Python, Assembly) 🏭 Industrial control systems ⚙️ Raspberry Pi, STM32, ESP32, Arduino, and ARM-based systems 🔄 Motion control (steppers, servos, motor drivers) 🖥️ Embedded Linux applications ⚡ Power electronics and battery-powered devices 🛠️ System debugging and prototype bring-up 📡 Communications (UART, SPI, I²C, CAN, Ethernet, Wi-Fi, BLE, Cellular) 📦 BOM development, component sourcing, manufacturing 🔍 Design reviews, troubleshooting Industry Experience: * Industrial automation * Commercial food & beverage equipment * Consumer electronics * Renewable energy * IoT and peripherals * University research * Robotics/motion control * Test, measurement, R&D, QA systems Embedded Systems | Product Development | PCB Design | Firmware | Industrial Automation I design embedded electronics that make it to manufacturing/production. 10+ years of experience routinely designing custom electronics, embedded firmware, and control systems. My work spans the whole product lifecycle—from early breadboard prototypes and proof-of-concepts to production-conscious hardware with designs for manufacturing and assembly. I enjoy solving engineering problems that don't have an off-the-shelf solution. My goal is to build something that's reliable and manufacturable for you, and to work on anything new and interesting for me. Recent work includes designing embedded control systems for commercial beverage equipment. It features custom PCBs, STM32-based HMIs, refrigerated dairy management, peristaltic pump control, industrial sensors, and Raspberry Pi & Arduino-based prototypes. Before that I was working on ultrasonic algae killers, and before that consumer appliances. Most of my experience deals with motor/sensor integration and hardware/firmware built around real world problems. How can we build a modular single-family EV charging station that can accept multiple possible power inputs? How does our UI drive user inputs? How can we control 14 types of sensor data in a way that drives our motors logically? From large-scale automated greenhouse systems to a fantastic automated beverage experience, it all boils down to hardware/software interactions. Many of my clients return for multiple prototype revisions and long-term product development because I strive to be more than a contractor—I aim to be a reliable engineering partner throughout the life of a project. My longest running current contract is over 2 years old. Good engineering is about more than making a prototype function. Every design decision should consider manufacturability, reliability, cost, long-term component availability, serviceability, and future scalability as early as possible. I enjoy collaborating with clients early and often in the design process to avoid expensive redesigns later. Whether you're starting with a sketch on a napkin, a breadboard prototype, or an existing design that needs refinement, I'd be happy to help bring your product to life.

  • Arduino
  • ESP32
  • Rapid Prototyping
  • Firmware Programming
  • Electronic Circuit Design
  • Product Design
  • Research & Development
  • Embedded System
  • C++
  • Python
  • Electrical Design
  • Power Electronics
  • Digital Signal Processing
  • Wireless Communication
  • PCB Design

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