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$95/hr
100%
Job Success
Offers consultations
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I help companies turn ideas and electronics designs into fully working and reliable devices.
I am a Hardware and Firmware Engineer with 10+ years of experience developing real products, with hardware designed for 70+ successful projects, many of which are currently on the market.
Unlike many freelancers who stop at schematic and PCB design, I support projects through board bring-up, firmware integration, and system debugging in a hardware lab, ensuring the device actually works and meets the expected specifications.
I also work directly with PCB manufacturers and assembly partners, helping clients avoid production issues and ensuring designs move smoothly from prototype to manufacturing.
My approach focuses on building functional systems, validating them through testing, and identifying issues early before they become expensive problems in production.
Two client
Products I Have Developed:
✅ Smart home devices
✅ Corrosion monitoring sensors
✅ Drone and boat controllers
✅ Gimbal control systems
✅ BLDC motor controller for medical beds
✅ Muscle stimulators
✅ Medical scales
✅ Smart irrigation and weather monitoring systems
✅ Smart camera systems
What I Deliver:
✅ Hardware architecture and PCB design
✅ Embedded firmware development
✅ Functional PCB prototypes ready for testing
✅ Board bring-up and hardware validation
✅ Hardware debugging and troubleshooting
✅ Reliability design reviews (ESD protection, thermal stability, power integrity, signal integrity, EMC, UL, CE)
Typical Projects I Help With:
✅ Bringing up new PCB prototypes
✅ Debugging boards that are not working or unstable
✅ Hardware and firmware integration
✅ Reviewing schematics and PCB layouts before manufacturing
✅ Reliability audits to improve product lifetime
✅ Fixing power stability, ESD protection, and thermal issues
During my career, I have used various technologies and components. Below are some of them:
⭐RF modules: LORA, WIFI, BLE, GPS, GSM, LTE, ZIGBEE, NRF52840, ESP32, SARA-R510, CC2530, CC2538, SIM9001, SIM800, Quectel, Arduino_IOT...
⭐Microcontrollers/Microprocessors: STM32 ( F and L family), ATAMEGA, ESP32, MSP430, MSP432, ATSAM, NFR52840, PIC32, PIC24, NXP, ARDUINO, IMX8...
⭐ Sensors: Temperature, humidity, O2 sensor, PH sensor, Light sensor, motion sensor, water leakage sensor, Nitrate sensor, current sensors, Voltage sensor, distance sensors, corrosion sensor, Scale sensors, accelerometers, Magnetometers, Rain sensor, Air quality sensors...
If you are looking for someone who can design, bring up, and debug your hardware until it works as expected, please send me a message, and we can discuss your project.
$60/hr
100%
Job Success
$10K+ earned
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I've designed software solutions for wireless cellular modem and audio broadcast technologies such as DAB, LTE, CAT-M1 and NB-IoT L1/PHY layer for past 8 years. I have good understanding of ETSI/3GPP standard specifications for aforementioned radio access technologies.
I am experienced software developer specializing in writing VLIW/SIMD processor firmware targeted at ultra latency DSP applications for communication modem systems. I am well versed in agile way of software development and continuous integration. My theoretical expertise lie in areas of digital signal processing, digital communication systems, detection and estimation theory.
Over the years, I have developed expertise in development of DSP algorithms using fixed point as well as floating point arithmetic targeting a variety of platforms. I have expert level coding language skills in C, C++ and MATLAB./Python. I have good know how of build system management tools like make and CMAKE as well as variety of source control/versioning systems like perforce, p4 and git.
My client's satisfaction is my top priority. I provide high quality services to my clients according to their requirements.
$20/hr
100%
Job Success
$8K+ earned
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Hassam B.
has worked
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With over 5 years of experience delivering successful commercial projects, I specialize in bringing product ideas to life through creative and practical solutions. I develop electronic products from circuit design to firmware programming, IoT App development android/ios and system optimization, ensuring robust and efficient system performance.
To transform your vision into reality, explore my services below, or connect with me to discuss your project.
Services:
✅ Firmware and Hardware Development
✅ IoT Cloud Integration, APIs Integration
✅ Edge AI Development and Deployment
✅ Enabling MCU connectivity with Smart Sockets, Apps & Web-based Dashboards
✅ Sensor and Display Interfacing
✅ Smartphone App Development for seamless IoT Hardware Integration
✅ PCB Design and Prototyping
✅ Technical Documentation
✅ Troubleshooting, Upgrading and Optimizing existing Firmware/Hardware
Why Hire Me?
✅ 100% Job Success Rate with 5+ years of experience
✅ Top-Rated on Upwork - Top 10% Talent
✅ 100% Client Satisfaction
✅ Affordable Pricing
✅ Long-Term Relationship
✅ Proven Track Record of Delivering High-Quality Projects
✅ Strong Problem-Solving Skills with a Focus on Reliability and Performance
🥇 Skills:
• Programming: Embedded C, microPython, Verilog HDL, Java, Kotlin, Dart, C#, MATLAB
• Simulation: NI Multisim, Proteus, Spice simulations, Wokwi, QEMU
• Protocols: SPI, I2C, UART, CAN, Modbus, BACnet, Bluetooth (BLE), WiFi, Zigbee, HTTP & MQTT
• PCB Design Tools: Altium Designer, KiCAD, EasyEDA, Autodesk Fusion 360
• Networking & Cloud Integration: AWS cloud, Arduino Cloud, Routing, Switching, Server configurations, OTA Updates, API Integration
• EDGE AI: EdgeImpulse, TinyML, Tensorflow Lite
• Embedded UI/Graphics Development: LVGL, Adobe Photoshop, Adobe Illustrator
🥇 Microcontrollers/Development and Controller Boards I've Worked with Extensively:
• ESP32-S3, ESP32-Wroom, ESP32-CAM, ESP32-Wemos, ESP32-C3, ESP8266, NodeMCU
• LILYGO and Waveshare ESP32-S3 developement boards (LVGL UI for TFT, Amoled or E-paper)
• STM32 ( STM32F407VGT6, STM32F103C8, Nucleo C031, L031 )
• Nordic nrf52832, Nordic nrf52840
• Different Arduino Development boards (Arduino NANO, Arduino UNO, Arduino MEGA 2560)
• RAMPS 1.4 Board for custom applications with NEMA 17 Stepper Motors
• PIC16F and PIC18F series
• ATmega16 and ATmega32 MCUs
🥇 Displays/Sensors/Actuators/Memory:
• TFT 1.44" & 1.77" with ST7735, ST7789, TFT 2.4" with ILI9341 and touch, 1.28" Round TFT GC9A01, OLED 0.96", 16x2 LCD, Dot Matrix Displays MAX7219, 7-Segments, E-Paper display EDPiy, VFD displays and many more.
• EEPROM, SDCards, USB and other storage options
• MPU6050 and MPU9250 Gyroscope and Accelerometer
• Different ADC, DAC, Decoders & Encoders, Rotary and Linear Encoder
• Thermal Imager AMG8833 Module, Temperature Sensors
• ESP8266/ESP32, NRF24L01
• Bosch BME280, BME680 sensors
• HMC5883L Magnetometer, SW420 Vibration sensor
• Capactive Touch Sensors, Thin-Film Pressure sensors
• BMS (Battery Management Systems) for Li-Po and 18650
• Ethernet W5500 and ENC28J60
• RTC 3231, PCF8563
• RFID and NFC, PN532 and RC522
• Ultrasonic and Infrared Modules, LDR, PIR motion sensor
• MQ series and MiCS 5524 Air quality monitoring sensors
• Addressable RGB Led Strip (WS2812, Neopixel)
• Servo, BLDC and Stepper Motors
• and many more.
🎓 Academic Qualifications:
• MS in Embedded Systems and IoTs
• BS in Electrical (Electronics) Engineering
📚 Current Areas of Research:
Embedded Linux Systems, Embedded Machine Learning, IoT Firmware Security
$50/hr
100%
Job Success
$50K+ earned
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Sujoy B.
has worked
.
Expertise in Power electronics, SMPS power supplies, Motor control, VFD drives, power distribution, transformers, PLC and Industrial automation.
Extensive design capabilities in Eagle Cad and KiCad for PCB designing and layouts. Well versed with Embedded systems engineering and micro-controller programming.
About me:- I am an Electronics engineer with 12 years of Experience in Industrial Electricals and Electronics technology. My areas of expertise are Power Electronics and Motor control. I have worked with Megawatt size AC-DC converters, wind turbines, UPS systems, motors and Drives for critical applications, and Industrial Networking systems during my stint at ABB and then Siemens.
For the last 2 years, I have been consulting with various individuals and companies regarding Power Supplies, AC-DC converters, Electric Vehicles, etc.
$20/hr
100%
Job Success
$1K+ earned
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I am a freelancer from the Netherlands. I have a 4 years of experience in Arduino, ESP32/8266 programming. and in C,C++ coding. I am strong at CAD, PCB designing. I am an active employee in IT company called “Lynsoft”. If you are trying to create IoT project, I can help!
$35/hr
$300+ earned
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I help companies design and deploy vision-guided robotic systems for precise industrial automation. With over four years of experience, I build complete robotic solutions that cover kinematics, CAD, ROS integration, and real-world deployment, including production-ready robotic assembly systems with sub-millimeter accuracy.
My work focuses on practical and reliable automation. I have delivered robotic PCB assembly systems, vision-based motion control, compliant insertion using force sensing, and trajectory control for both industrial and custom robotic platforms. I am comfortable working from early concept and prototyping through to stable, maintainable systems that operate outside the lab.
I typically work closely with clients to understand technical requirements, select appropriate sensors and hardware, design control and perception pipelines, and integrate everything into a robust ROS-based system. Clear communication, structured development, and realistic engineering decisions are central to how I work.
Projects:
- Vision-Based Robotic PCB Assembly
Designed and deployed a vision-guided robotic assembly system for through-hole PCB components, achieving reliable insertion with ≥0.15 mm pin-to-hole clearance using stereo vision, force sensing, compliant control, and ROS.
- Dual-Arm Robotic Assembly (ABB YuMi)
Implemented motion planning, visual servoing, and compliant control for coordinated dual-arm assembly tasks in an industrial research environment.
- Parallel Robot (Hexaglide) Kinematics and Control
Developed forward and inverse kinematics, trajectory generation, and controller architecture for a 6-PUS parallel robot, including sensor fusion and CAD-based validation.
- Mobile Robot for Glulam Pressing
Conceptualized and designed a special-purpose mobile robot for glue laminated timber (Glulam) processing, including mechanical design and system layout using Autodesk Inventor.
- Autonomous Driving with Imitation Learning
Built a training environment in CARLA and implemented Generative Adversarial Imitation Learning (GAIL) to improve expert models for autonomous driving scenarios.
Tech Stack:
- Robotics & Control: ROS / ROS2, MoveIt, robot kinematics, trajectory planning, compliant control
- Computer Vision: OpenCV, stereo vision, 3D triangulation, Intel RealSense, visual servoing
- Programming: Python, C++, MATLAB
- Simulation: Gazebo, CoppeliaSim, CARLA
- Hardware & CAD: Autodesk Inventor, SolidWorks, sensors, load cells
- Embedded & Tools: STM32, ESP32, Arduino, Linux, Docker, Git
Feel free to reach out. I would be delighted to provide my insight.
Thank you for your time and consideration!
$60/hr
$6K+ earned
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Hello. If we agree to go ahead with bringing your idea to life, you can be sure that:
💼 The design documentation will be well-structured and tidy.
🎯 The schematic design and PCB layout will be done properly to pass the EMC.
💵 The design will be cost-effective by thoroughly selecting the components and not paying for something the project doesn't need.
🚀 The firmware in C will be designed to be predictable and reliable.
🏭The project will be designed with mass-manufacturability in mind.
🔩The prototype will be assembled and tested in-house using professional equipment.
🎮If required, some of the mechanical parts of your project can be designed using Fusion 360.
● I approach hardware and software design, focusing on reliability and performance in real-world conditions, not just on the desk. Leveraging my expertise as an electronics engineer, I ensure that all my designs pass EMC/EMI requirements. My work is built to withstand the demands of field deployment.
Hi! Thank you for visiting my profile. I'm an Electronics Engineer with 8+ years of professional full-time experience and 14 years of hands-on hobbyist experience. My passion for electronics started when I was a kid, and it has driven me to develop an expertise in the hardware and software aspects of electronics engineering.
● My main specialisations are:
Power electronics, Audio on low-cost devices, Battery-powered devices.
● I'm experienced with the following:
Firmware design in C for ESP32, STM32, CH32V, 8051 MCU's
Mixed-signal multi-layer PCBs.
BOM optimisation.
DC/DC
Wi-Fi
LoRa
SPI, I2S, I2C, UART, CAN
User interfaces using the LVGL graphics library
RaspberryPi
● Software I use:
KiCad for schematic capture and PCB layout(I've used Altium in the past).
VSCode and CubeIDE for firmware.
LTSpice for simulations.
Autodesk Fusion 360 as MCAD.
A bunch of other specialised software for calculations and simulations.
Let's work together to bring your ideas to life.
$30/hr
100%
Job Success
$6K+ earned
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Foad M.
has worked
.
I'm a Telecommunications Engineer and expert in programming (MATLAB, VHDL, Verilog, and Python) and Signal Processing. My skills are included but not limited to: MATLAB Programming, Embedded Design Systems and Embedded Programming (focused on Yocto Linux Customization) FPGA and Digital Design, Python Programming, Signal Processing and Data Analysis, EEG and Bio-Signal Processing, Artificial Intelligence, 5G and Beyond 5G Communication Systems. Compressive Sensing and Sparse Coding, and Reinforcement Learning are also my recent fields of research. I will design your GUI software by PyQt5 and .Net C# tools.
$30/hr
100%
Job Success
$2K+ earned
Start of list.
End of list.
✅Reverse Engineering✅PCB Design✅Circuit Design ✅ PCB Layout✅ Embedded Systems✅Microcontroller Programming ✅ Gerber Files✅Bill of Materials (BOM) ✅ Hardware Debugging✅ 3D CAD Modeling ✅SolidWorks ✅ Mechanical Design
We are a team of professional Electronics Engineers with 7 years of experience in PCB design, circuit design, and embedded systems. We help startups and companies turn ideas into high quality, production ready electronic products.
Our team approach allows us to handle complex and large scale projects efficiently, ensuring faster delivery without compromising quality.
Expertise:
✔ Reverse Engineering & Troubleshooting
✔ PCB Design (Single, Double & Multilayer)
✔ Circuit & Schematic Design
✔ High Speed & RF PCB Layout
✔ Gerber, BOM & Pick and Place Files
✔ Embedded Systems (Arduino, ESP32, STM32, PIC)
✔ IoT Product Development
Why Choose Us:
✔ Dedicated team for faster turnaround
✔ Production ready & manufacturable designs
✔ Strong communication & quick response
✔ Ontime delivery with high quality
✔ Long term support for your projects
If you are looking for a reliable engineering team to bring your idea to life, feel free to invite us to your project.
$30/hr
100%
Job Success
Available now
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Need a professional PCB that works the first time?
I help startups, researchers and businesses transform ideas into production ready electronic products. Whether you need a custom PCB, embedded firmware or a complete hardware design, I can support your project from concept to prototype.
Services I offer:
1. Schematic capture (EasyEDA / KiCad / Altium)
2. PCB layout (2-6 layers)
3. Analog and digital circuit design
4. Power electronics
5. ESP32, STM32, AVR, Arduino based systems
6. Prototype support and debugging
7. Manufacturing files (Gerbers, Pick & Place, Assembly Drawings)
8. BOM sourcing and cost optimization (LCSC, DigiKey, Mouser, Arrow)
9. DFM/DFA review before manufacturing
I focus on designs that are reliable, manufacturable and optimized for cost. Whether you are building a prototype or preparing for production, I will help ensure your hardware is ready for fabrication.
Clear communication, timely delivery and practical engineering are priorities throughout every project.
Associated with
Haizom Studios