Circuit Designersพร้อมรับจ้าง
แสดงผล 116 รายการ
freelancer ที่ได้รับการสนับสนุน
-
Thank you for visiting my profile. My name is Marko Aleksic, a dedicated electronic hardware and firmware engineer specializing in creating innovative and high-quality solutions for electronic product development. I am passionate about transforming ideas into reality through meticulous design and development -Core...Thank you for visiting my profile. My name is Marko Aleksic, a dedicated electronic hardware and firmware engineer specializing in creating innovative and high-quality solutions for electronic product development. I am passionate about transforming ideas into reality through meticulous design and development -Core Competencies: -PCB Design & Development: Expert in designing reliable, high-performance printed circuit boards (PCBs). Specialization in power supply circuits (DC-DC, AC-DC conversions) and multilayer designs for embedded systems. Proven track record in developing efficient LED driver circuits and RF PCB layouts. -Firmware Development: Extensive experience programming microcontrollers including STM32, DSPIC, ESP32 and ESP8266. Mastery of communication protocols such as UART, SPI, Ethernet, USB, CAN, and MODBUS for seamless integration. Proficient in implementing wireless technologies including Wi-Fi, Bluetooth, and ZigBee. -RF Design & Analysis: Strong capabilities in RF circuit design, antenna optimization, and simulation for applications like WiFi, Bluetooth, and RFID. Expertise in developing RF filters, splitters, transceivers, and power amplifiers tailored to specific application needs. I am committed to delivering cost-effective, high-quality solutions without compromising performance or deadlines. I welcome the opportunity to connect and discuss how I can contribute to your projects. ย่อ
ว่าจ้าง markoa7
-
⚡ Professional Embedded Systems & Product Design Expert | 15+ Years Freelance Experience ⚡ For the past 15 years, I’ve been a full-time freelance product designer, delivering high-quality hardware and firmware solutions for both industrial and consumer markets. From concept to prototype to production, I help bring...⚡ Professional Embedded Systems & Product Design Expert | 15+ Years Freelance Experience ⚡ For the past 15 years, I’ve been a full-time freelance product designer, delivering high-quality hardware and firmware solutions for both industrial and consumer markets. From concept to prototype to production, I help bring ideas to life, efficiently, reliably, and with long-term support in mind. Whether you need hardware design, sensor data acquisition, power systems, firmware development, or complete system integration, I offer end-to-end solutions tailored to your goals. ✅ What I Offer ⚡ Hardware Design & Prototyping • 15+ years with Altium, KiCad, and Eagle • Expertise in embedded, mixed-signal, and analog systems • Battery and Solar Powered Systems • Sensor integration & industrial IoT hardware • Skilled in SPICE simulation (LTspice, TINA-TI) • Fully equipped in-house lab for testing and validation ⚡ Firmware & Embedded Development • 20+ years of C programming with GCC, SDCC, CCS • STM32, ESP32, Microchip 8/16/32-bit, TI MSP430/MSP432, C2000 • Power-efficient firmware, custom bootloaders, and protocols • FreeRTOS and Bare-Metal programming ⚡ Connectivity & Communication • RS485, CAN, LIN, USB, Ethernet • Wi-Fi, GSM, LTE, LoRa, BLE, Sub-GHz RFs • Any type of sensor/device integration ⚡ Software Integration • Desktop app development using MSVC, GCC • Bridging hardware with desktop tools or automation systems ⚡ Production & Supply Chain Support • BOM cost optimization & component sourcing • Established connections with Chinese manufacturers and supply chain management • Low to mid-volume production support ✅ Why Work With Me • End-to-End Expertise: With 20+ years of experience in electronics and programming, I bring equal proficiency in both hardware design and firmware development, ensuring seamless integration between the two. • Project Ownership: From schematic capture and PCB layout to embedded firmware and system validation, I take full responsibility across the entire development cycle. • Quality Assurance: My work is backed by lab-grade test equipment, simulation tools, and a rigorous validation process to guarantee accuracy and reliability. • Post-Delivery Support: I provide long-term assistance beyond delivery, helping you through product updates, field issues, and lifecycle management. • Intellectual Property Respect: I treat your IP with the utmost confidentiality. Your designs, code, and data are fully protected and never reused or shared. • Reliable Collaboration: Having worked with clients globally, I understand how to communicate clearly, meet deadlines, and deliver results that align with your vision. ✅ Let’s Connect No pressure, no obligation. If you have a concept or challenge you'd like to discuss, feel free to message me. I’m happy to explore how I can help turn your ideas into working, manufacturable solutions. ย่อ
ว่าจ้าง cpp2048
-
DearSir, My background is related with: -Digital Motor Control -Analog Design -Electronic Design -PowerElectronics -Renewable energy -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux...DearSir, My background is related with: -Digital Motor Control -Analog Design -Electronic Design -PowerElectronics -Renewable energy -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux estimation algoritm generation -DSP(TMS320) implementation on motor drive -Low speed application -Torque and speed loop generation -Control algoritms -BLDC motor -Step motor -DC motor Analog design -Low power distribution -Noissless special opamp based analog circuits -Analog filters -Orcad simulation of several circuits Electronic Design -RF transmitter and receiver -Bluetooh reade rand transmitter -Magneticreader PowerElectronics -Implementation motor drive -AC/DC converter -DC-DC converter -Battery charger -Solar inverter -Renewable Energy -Uninterruptle power supplies PCB design -Schematic design by Altium -PCB design by Altium -Power board design -SMPS board design -Easyeda -CAD files of manufacturers Embedded system -ESP32,ESP8266,modules -Bluetooth and Wifi -PIC18,PIC24,PIC30 and dsPIC applications -Ardino -MSP430 -Atmel -DSP(Texas Instruments) -Renesas -STM32 -C2000 Matlab -Power Electronics simulation -Motor drive -WindEnergy -Solar Energy -Control applications Simulation of Hardware -Orcad Simulation (TI,National, LinearTech, Maximlibraries) -LTI -National -Matlab -Easyeda ย่อ
ว่าจ้าง macroenergy
-
#1 Professional in electronics for hardware design #2 New Product Design/Development: Design thinking, Concept development, Schematic design, Control method design. 3D PCB simulation, box/enclosure simulation, assembly simulation. #3 See the OUTPUT first and pay LATER! I can take ideas right from sketching to...#1 Professional in electronics for hardware design #2 New Product Design/Development: Design thinking, Concept development, Schematic design, Control method design. 3D PCB simulation, box/enclosure simulation, assembly simulation. #3 See the OUTPUT first and pay LATER! I can take ideas right from sketching to manufacturing blueprints. #4 Free consultation, nothing is charged for time spent in meetings, communication etc. #5 I ensure the bill is justified and the output matches with the money paid! ย่อ
ว่าจ้าง ducchunguyen
-
✋ Hi, I’m Mairaj Ali, a verified Electrical/Electronics Engineer and Professional PCB Designer with over 8 years of experience in designing high-quality circuit boards using Eagle, Altium, KiCAD, and EasyEDA. Also I am a professional Certified EasyEDA designer (Certificate is attached in portfolio section). My...✋ Hi, I’m Mairaj Ali, a verified Electrical/Electronics Engineer and Professional PCB Designer with over 8 years of experience in designing high-quality circuit boards using Eagle, Altium, KiCAD, and EasyEDA. Also I am a professional Certified EasyEDA designer (Certificate is attached in portfolio section). My expertise lies in the following areas: ✅ PCB Design & Prototyping using Eagle, Altium, KiCAD, EasyEDA ✅ CAD/Housing Design for PCBs in Fusion360 ✅ MATLAB/SIMULINK & Python programming ✅ Embedded Systems design (Arduino, AutoCAD, Multisim, Proteus, LTspice, PSpice, C/C++) ✅ VHDL/Verilog HDL, Xilinx, and FPGA development ✅ Research & Technical Writing (Plagiarism Removal, Academic Writing, and Thesis Writing) ✅ Advanced Engineering Mathematics (Calculus, Differential Equations, Numerical Methods, Linear Algebra) ✅ Expertise in LaTeX for high-quality document formatting I am a Preferred Freelancer, ranking among the top 1% of skilled professionals. My passion for PCB design and embedded systems drives me to deliver the best solutions on time and within budget. Whether you're looking for custom PCBs, embedded solutions, or writing services, I can help you achieve your goals. Let’s turn your ideas into reality. Feel free to check my portfolio and message me to discuss your project anytime – I’m available 24/7. #PCB #PCB_designing #Electrical #Electronics #ElectricalEngineering #MATLAB #SignalProcessing #Mathematics #Latex #AutoCAD ย่อ
ว่าจ้าง mairajali11
-
As an embedded software and hardware engineer, I am responsible for designing and developing software and hardware solutions for embedded systems. -Designing and developing software for embedded systems: I write code on microcontrollers, processors, and other embedded devices. This includes low-level programming,...As an embedded software and hardware engineer, I am responsible for designing and developing software and hardware solutions for embedded systems. -Designing and developing software for embedded systems: I write code on microcontrollers, processors, and other embedded devices. This includes low-level programming, driver development, and firmware development. -Designing and developing hardware for embedded systems: I design electronic circuits, choose components, and create schematics for the hardware components of embedded systems. This includes PCB layout, debugging, and testing. -Integrating software and hardware components: I work to ensure that the software and hardware components of embedded systems are properly integrated and work together seamlessly. -Debugging and testing: l use tools such as oscilloscopes, logic analyzers, and debuggers to diagnose and fix issues with embedded systems. -Documentation: I create documentation for the software and hardware components of embedded systems, including design specifications, test plans, and user manuals. -Collaboration: I work closely with other engineers and teams, including hardware engineers, software engineers, and quality assurance teams, to ensure that embedded systems meet project goals and timelines. As an embedded software and hardware engineer, I play a critical role in developing and delivering reliable and high-performance embedded systems that meet the needs of customers and end-users. ย่อ
ว่าจ้าง faytek
-
👋 Hello! I’m Ben, a hardware and firmware professional with 8+ years of experience in designing circuits, programming embedded systems, and developing PC-based software for electronic products. I specialize in delivering innovative, reliable, and high-performance solutions. With a proven track record on Fiverr (Level...👋 Hello! I’m Ben, a hardware and firmware professional with 8+ years of experience in designing circuits, programming embedded systems, and developing PC-based software for electronic products. I specialize in delivering innovative, reliable, and high-performance solutions. With a proven track record on Fiverr (Level 2, 200 orders, 4.8 stars) and Upwork (Top Rated Plus, 40 orders, 5 stars), I am committed to providing top-quality service that meets your needs. I’m also the CEO of an engineering team of 30 experienced engineers, allowing us to handle projects end-to-end—from hardware and firmware to app, web, and AI solutions—and scale efficiently to meet complex project demands. 🔧 Key Experience ✅ Schematic and PCB Design ✅ Parts Selection and Sourcing ✅ Manufacturing File Generation ✅ Bill of Material Management ✅ Design Documentation and Source Code Management ✅ Embedded Hardware Design (Analog, Digital, Mixed Circuits) ✅ Arduino and STM32 Firmware Design ✅ Board-Level Testing, Debugging, and Test Plans ✅ Impedance-Controlled PCB Design ✅ PCB Miniaturization and Cost Reduction ✅ IPC Standard Footprint and Layout Design ✅ High-Density PCB Layouts: 1-12 layers with high-speed interfaces (DDR3, DDR4, PCIe, SATA, Gigabit Ethernet, PoE) ✅ High-Speed Multi-CPU/SoC Designs: DDR3/DDR4, PCIe, USB 3.1, Gigabit Ethernet 🛠 Core Skills ✅ Microcontroller Platforms: Arduino, ESP32, STM32, ESP8266, nRF52xx, Raspberry Pi, Linux Chips ✅ Microcontroller Boards: Arduino, STM32 Nucleo, STM32 Discovery, NodeMCU, Raspberry Pi ✅ Programming Languages: C/C++ ✅ Development Environments: Visual Studio Code, STM32CubeIDE, Arduino IDE, ESP-IDF, Segger ✅ Hardware Design: Audio, RF Modules, PA, LCD, Filters, RFID ✅ Power Conversion: DC-DC, AC-DC, Buck, Boost, Flyback Converters ✅ Communication Protocols: USB (2.0/3.0/3.1/3.2), UART, I2C, SPI, I2S, RS232, RS485 ✅ Wireless Systems: BLE, BLE Mesh, ZigBee, UWB, LoRa, NB-IoT, 4G LTE, WiFi Mesh, NFC ✅ Touch Screens, LCDs, NFC Design ✅ Motors Control: BLDC, Stepper, Servo, DC Motors ✅ Hardware Expertise: Nvidia Jetson, FPGA 🏆 Applications & Solutions ✅ Power Supply Designs: Buck Converters, Boost Converters, Linear Power Supplies ✅ Amplifiers and Filters ✅ Wireless Communication Systems: WiFi, BLE, LoRa Mesh ✅ Communication Protocols: USB, UART, I2C, SPI, I2S, RS232, RS485 ✅ Signal Conversion: ADC, DAC ✅ RF Systems and RFID Solutions ✅ GPS, Ultrasonic, and Laser Systems ✅ Motors: BLDC, Stepper, Servo, DC ✅ Embedded Systems: Real-time Firmware Development, Low-Level Driver Programming Let’s Work Together! With my experience and expertise, I’m confident I can provide tailored solutions to help you achieve your goals. I look forward to the opportunity to work with you. Best regards 🤝 Ben ย่อ
ว่าจ้าง BenJeremie
-
I'm a recent Computer Science graduate as well as an experienced electronics designer and enthusiast. I've been designing circuits and PCBs for over four years. What started as a hobby quickly became a full blown passion. Throughout the journey, I’ve completed numerous PCB designs while developing a strong...I'm a recent Computer Science graduate as well as an experienced electronics designer and enthusiast. I've been designing circuits and PCBs for over four years. What started as a hobby quickly became a full blown passion. Throughout the journey, I’ve completed numerous PCB designs while developing a strong understanding of industry best practices and standards. I also develop custom firmware, am proficient in C++, Python, and do 3D Modeling. One of my most complex projects is a fully open-source handheld gaming console, which is available on GitHub. I take great pride in my work and always aim to create smart, high-performance designs that are EMC/EMI compliant. You can review my work in full detail at: www.github.com/thurstinn ย่อ
ว่าจ้าง dustins0
-
FranciscoSilvi FranciscoSilvi
$15 USD / ชม.
Electronic Engineer - Hardware & Firmware DevsArgentinaI have extensive experience, primarily in hardware design I primarily work with Altium Designer, but I am also proficient in KiCAD, EAGLE, EasyEDA, and Allegro OrCAD. I also develop firmware, primarily for the following platforms: -ESP32, S2, S3, C3 y C6 -ESP8266 -STM32 -STM8 -AVR -ATSAM -RAK Wireless Modules -PIC,...I have extensive experience, primarily in hardware design I primarily work with Altium Designer, but I am also proficient in KiCAD, EAGLE, EasyEDA, and Allegro OrCAD. I also develop firmware, primarily for the following platforms: -ESP32, S2, S3, C3 y C6 -ESP8266 -STM32 -STM8 -AVR -ATSAM -RAK Wireless Modules -PIC, PIC32, dsPIC For clients who prefer it, I am familiar with various Arduino Cores to facilitate future code editing and small modifications that the client can handle themselves. I also have the capability to run multithreaded code on any of the aforementioned platforms. I also use IDEs such as: -STM32Cube -RUI (Rak User Interface) -IDF (Espressif) -Atmel Studio (ATSAM/ATMEGA) ย่อ
ว่าจ้าง FranciscoSilvi
-
I am an RF and electronics design engineer from Ukraine with strong experience in antenna design, RF PCB layout, and general electronic hardware development. I focus on practical, manufacturable designs with predictable performance. Core expertise: - RF PCB layout (impedance control, grounding, isolation, EMI...I am an RF and electronics design engineer from Ukraine with strong experience in antenna design, RF PCB layout, and general electronic hardware development. I focus on practical, manufacturable designs with predictable performance. Core expertise: - RF PCB layout (impedance control, grounding, isolation, EMI reduction) - High-speed and mixed-signal PCB design (impedance and length matching) - Schematic & PCB layout and BOM for production-ready hardware - Power supply and filtering design - Antenna design and tuning (GNSS, Wi-Fi, ISM bands...) Typical work: - Wi-Fi, BLE, LoRa, and custom RF hardware - Compact and embedded antennas - Multilayer PCBs optimized for performance and cost - Design review, layout correction, and RF/EMI troubleshooting Tools: - RF design and simulation tools (ADS, CST, and HFSS) - PCB design tools (Altium, KiCAD, OrCAD, PADS, and EasyEDA) - Others (NI Multisim, Proteus, Matlab...) Thanks for visiting my profile. ย่อ
ว่าจ้าง leonidye
