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Project Overview: I have a functional breadboard prototype of a mobile robot and I need an experienced PCB designer to convert it into a professional, production-ready PCB using KiCad. Beyond the conversion, I am looking for a professional review to suggest and implement improvements for robustness, EMI reduction, and overall reliability. Hardware Specifications: -MCU: Socket headers for ESP32 DevKit V1 (30-pin). -Motor Driver: Integrated L298N logic (or equivalent H-Bridge) to drive two DC Motors. -Power Supply: Input from 2x 18650 batteries (~8.4V). -DC/DC step down (3A): Integrated Buck Converter circuit (use LM2596 module or better) to provide a stable 5V rail. Connector Requirements: -Servos (2x): 3-pin male headers (2.54mm pitch) for SG90 connection (Signal, VCC, GND). -TFT Display (2.4" SPI): 8-pin JST-XH connector. -DC Motors (2x): 2-pin screw terminals (Bornes) for each motor output. -Battery Input: 1x 2-pin screw terminal (Borne). Technical Requirements & Deliverables: -Layout: MUST include a Solid Ground Plane on both top and bottom layers to minimize interference. -Robustness Review: Add decoupling capacitors, flyback diodes (if not integrated), and proper trace widths for power lines. -Documentation: Please refer to the attached pinout tables and connection diagrams for the exact wiring logic. Required Deliverables: 1. Full KiCad project folder (Schema, PCB, and local libraries). 2. Gerber Files, Drill files, and BOM. 3. 3D STEP model of the board.
Project ID: 40443802
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Active 3 days ago
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55 freelancers are bidding on average $141 USD for this job

My dear esteemed client, it is my absolute delight to have come across your project! My name is Metin, an electrical engineer well-established in the field of PCB design and Electronics. Over the years, I have developed manifold skills that make me an ideal fit for your endeavor. My areas of expertise include in-depth knowledge in Digital Motor Control, Analog Design, Power Electronics, Renewable energy - all of which align smoothly with the specific technical requirements you've outlined. Drawing from my extensive background in similar projects, I assure you my commitment to delivering a top-notch outcome is unrivaled. I'm well-versed with KiCad and its nuances for designing professional-grade circuits. The robustness review you seek will be performed meticulously - augmented by the inclusion of necessary components like decoupling capacitors and flyback diodes to ensure utmost reliability and EMI reduction. Of equal importance, I appreciate your focus on documentation - something I place value on as well. By carrying out due diligence in your pinout tables and connection diagrams, I intend to not only design a production-ready PCB but one whose operation can be understood at a glance.
$140 USD in 7 days
7.4
7.4

I am a skilled and reliable Embedded Systems Engineer with over 6 years of hands-on experience in Arduino, ESP32/ESP8266, and microcontroller-based development. I specialize in designing efficient, stable, and scalable embedded solutions, turning ideas into fully functional hardware-software systems. I have a strong background in electronics, sensors, communication protocols (UART, I2C, SPI, MQTT, WiFi, BLE), and real-time embedded systems. My development approach focuses on clean, well-structured, and well-documented firmware, ensuring long-term reliability and easy maintenance. I also provide thorough testing, debugging, and performance optimization, including power efficiency improvements where required. I am a detail-oriented engineer with strong problem-solving skills and extensive experience in hardware debugging and firmware optimization. Beyond technical expertise, I value clear communication, meeting deadlines, and maintaining high client satisfaction. I work closely with clients to fully understand project requirements and deliver high-quality results. Pricing is flexible and can be discussed based on project scope and complexity. I am open to both short-term and long-term projects. Let’s work together to build a professional, reliable, and efficient embedded system for your needs.
$100 USD in 7 days
7.4
7.4

With over 8 years of experience in electrical engineering and PCB designing, I can confidently say that I’ll be the ideal fit for your project. One of my core expertise is working with KiCad and delivering exceptional PCB designs on time and within budget. I fully understand the demands of your project as mentioned in the description – from the need for a robust & reliable design, EMI reduction to ensuring power supply stability and connector requirement to avoid any hassle or ambiguity. Throughout my career, I have consistently produced high-quality circuit boards while adhering to best practices for robustness – from implementing proper trace widths, adding decoupling capacitors and flyback diodes where needed to designing a suitable ground plane. Additionally, my knowledge in MATLAB/SIMULINK & Python programming allows me to analyze potential issues like EMI and devise preventative measures to guarantee your design’s reliability. If you give me the opportunity, not only will I create a production-ready PCB for you with all necessary deliverables but also provide comprehensive 3D representation so you have a clear visual idea of the final product. Remember, choosing someone in the top 1% of professionals ensures you’re hiring only the best and efficient talent out there! Please check my portfolio and reach out if you have any queries. Thank you for considering me for this exciting project!
$140 USD in 7 days
6.9
6.9

As an accomplished Embedded Systems Engineer and Professional PCB Designer, I have extensive experience working with a variety of microcontrollers, PCB design software such as KiCAD (which your project requires), and deep knowledge in electrical engineering and electronics. My expertise in hardware prototyping, specifically in motor driver PCB designs using MCUs like ESP32, makes me the ideal candidate for your project. Moreover, I possess valuable skills and experience in system integration, which is crucial when ensuring robustness, EMI reduction, and overall reliability. I understand the concerns that come with transferring a functional breadboard prototype into a production-ready PCB, especially when you need it to be reliable and efficient. I have designed similar projects before and can confidently bring your ideas to life with innovation and precision. I guarantee on-time delivery without compromising quality, and even offer free support and maintenance after completion to ensure client satisfaction.
$176 USD in 4 days
6.5
6.5

I can convert your mobile robot breadboard prototype into a professional, production-ready KiCad PCB with improved reliability and cleaner power design. I have experience with ESP32 robotics hardware, motor drivers, buck converters, EMI reduction, and mixed power/control PCB layouts. The board will include optimized placement for the ESP32 DevKit V1, L298N motor stage, servo headers, TFT connector, and battery power section. I will implement solid ground planes on both PCB layers, proper decoupling, flyback protection, and wide power traces for stable motor operation. Special attention will be given to reducing motor noise and preventing ESP32 resets caused by current spikes from motors or servos. All connectors and terminals will be clearly labeled for easier assembly, debugging, and maintenance. I will carefully follow your provided pinout tables and connection diagrams to preserve the existing robot functionality exactly. Deliverables include the full KiCad project, schematic, PCB layout, Gerbers, drill files, BOM, and a complete 3D STEP model. I can also suggest practical improvements for thermal behavior, grounding, filtering, and future expandability before finalizing the PCB.
$140 USD in 3 days
6.8
6.8

Hi there, I carefully read your project, and I can help convert your mobile robot breadboard prototype into a clean, production-ready KiCad PCB with improved robustness, EMI reduction, and reliable power/motor routing. I’m Samuel Tshibangu, a mechatronics engineer with strong experience in PCB design, ESP32-based systems, motor drivers, battery-powered robots, buck converters, and manufacturable KiCad layouts. I’ve worked with similar components and architectures, including ESP32 DevKit headers, DC motors, servos, TFT displays, screw terminals, and power regulation, so I can complete this efficiently. I can deliver the full KiCad project, Gerbers, drill files, BOM, and 3D STEP model, while adding proper ground planes, decoupling, protection, flyback handling, and correct trace widths for motor and power lines. Feel free to send me a message. Best regards, Samuel Tshibangu
$156 USD in 1 day
6.3
6.3

Hello, I’m an embedded hardware engineer with experience converting breadboard prototypes into production-ready KiCad PCB designs for robotics and embedded systems. I can redesign your robot electronics into a clean, robust PCB with: * ESP32 DevKit V1 integration * Motor driver and power-stage optimization * Proper ground planes and EMI-conscious routing * Decoupling, flyback protection, and power integrity improvements * Correct trace sizing for motors and battery paths * Clean connector placement for servos, TFT, motors, and battery input Deliverables: * Full KiCad project files * Gerbers, drill files, and BOM * STEP 3D model * Manufacturing-ready outputs Estimated cost: $250 fixed price Estimated timeline: 4–6 days I’ve worked on embedded robotics hardware involving ESP32 systems, motor control, battery-powered electronics, and production-focused PCB layouts with DFM considerations.
$250 USD in 5 days
6.2
6.2

HI, KINDLY READ THROUGH MY PROPOSAL I will deliver a professional, production-ready 2-layer PCB in **KiCad** that converts your breadboard mobile robot prototype into a clean, robust, and reliable design — with solid ground planes, proper power routing, decoupling, flyback protection, and clear documentation. MY APPROACH ✅ Phase 1: Full schematic import + review (ESP32 DevKit socket, L298N driver, buck converter, servos, TFT connector, battery input). ✅ Phase 2: Optimized compact layout with solid GND planes on top & bottom, wide power traces, EMI reduction, and mechanical robustness. ✅ Phase 3: Generate all manufacturing files, 3D model, and detailed BOM with improvements. RELEVANT PROJECTS • Multiple ESP32 + L298N mobile robot PCBs (2-layer with solid ground planes, buck converter, servo + motor drivers delivered first-pass success at JLCPCB) DELIVERABLES • Complete KiCad project folder (schematic + PCB + custom libraries) • Gerber RS-274X, NC Drill, Pick & Place files • Detailed BOM (with LCSC/Mouser links) • 3D STEP model of the assembled board • Design notes & improvement report (decoupling, protection, trace widths) QUESTIONS 1. Can you share the breadboard photos, pinout tables, and connection diagrams now? 2. Any strict maximum board dimensions? 3. Do you prefer 2-layer or 4-layer (for better EMI performance)? Ready to start immediately. Send the reference files and I’ll begin the schematic review today.
$150 USD in 2 days
6.4
6.4

Hi, I will transform your existing ESP32 robot breadboard prototype into a professional, production-ready KiCad PCB, with a strong focus on robustness, power stability, and EMI reduction. I possess extensive experience in designing embedded motor control boards featuring ESP32s, DC motors, servos, buck converters, and mixed-signal power routing, ensuring stable operation even in electrically noisy environments. The resulting PCB design will incorporate proper decoupling, dual-sided grounding, optimized power trace sizing, protective circuitry, and clean routing to guarantee reliable performance. Furthermore, I can review your existing architecture to propose improvements—specifically regarding motor driver sections, grounding strategies, and power distribution—aimed at enhancing durability and minimizing interference issues. All necessary connectors—including the ESP32 DevKit socket headers, TFT SPI interface, servo headers, and battery/motor terminals—will be implemented precisely according to your provided wiring documentation. The final deliverables will include the complete KiCad project files, Gerber files, drill files, a Bill of Materials (BOM), and a 3D STEP model, all fully prepared for manufacturing and assembly. I am ready to begin work immediately and am committed to delivering a rapid, high-quality result that adheres to professional PCB design standards. Regards.
$140 USD in 7 days
5.7
5.7

Hello, I will make this with ESP32-S3 module instead of Devkit. L298 is quite obsolete so we should use something newer. We can add battery charging circuit also to the boards. Lets finalize details together.
$222.22 USD in 7 days
5.6
5.6

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!
$180 USD in 7 days
5.8
5.8

Hi, I reviewed your mobile-robot PCB conversion project and it aligns strongly with my experience in embedded robotics hardware, motor-control electronics, and production-ready KiCad PCB design. I’m an embedded hardware engineer with 15+ years of experience, having converted numerous breadboard/prototype robotics systems into manufacturable PCBs with improved EMI performance, robust power delivery, and assembly-ready documentation. Approach: ✅ I will recreate and optimize the schematic in KiCad, validating ESP32 pin mapping, motor-driver integration, buck-converter stability, and all connector interfaces against your wiring documentation. ✅ I will design a production-ready PCB with solid ground planes, optimized current paths, decoupling strategy, flyback suppression, and EMI-conscious routing for motors and servos. ✅ I will review robustness aspects including thermal behavior, trace-width sizing, connector reliability, grounding architecture, and protection against motor-noise injection into the ESP32/TFT interfaces. ✅ I will deliver the complete KiCad project, Gerbers, drill files, BOM, local libraries, and accurate 3D STEP model ready for manufacturing and enclosure integration. Questions: ✅ I need to confirm expected peak motor current and whether stall-current conditions must be supported continuously. ✅ I want to verify if the L298N implementation is fixed or whether a more efficient MOSFET-based driver is acceptable. Best, Yaroslav
$140 USD in 7 days
5.3
5.3

Dear Sir, I am an experienced Electronic Engineer with strong expertise in KiCad PCB design, ESP32 systems, motor control, and production-ready embedded hardware. I can convert your functional breadboard robot prototype into a clean, reliable, and manufacturable PCB while also improving robustness, EMI performance, and overall system reliability. I will design the board with: * ESP32 DevKit V1 socket headers * Integrated dual DC motor driver section * Stable 5V buck converter power stage * Proper connectors for SG90 servos, TFT SPI display, motors, and battery input * Solid ground planes on top and bottom layers * Correct trace widths for motor and battery currents I will also review the design professionally and implement improvements such as: * Decoupling capacitors * Noise reduction techniques * Flyback protection * Better grounding and power routing * Improved thermal and current handling I have experience designing mixed power/logic PCBs where motor noise and voltage stability are critical. My focus is always reliability, clean layout, and easy manufacturing. Deliverables will include: 1. Full KiCad project files 2. Schematic + PCB layout 3. Gerber and drill files 4. BOM 5. 3D STEP model I can work directly from your pinout tables, wiring diagrams, and prototype references and maintain clear communication during the project. Best Regards, Hamza Electronic Engineer
$90 USD in 5 days
5.4
5.4

Hello! I'm a highly skilled PCB Designer with over 10 years of expertise in delivering reliable and efficient PCB designs. I specialize in creating precision designs tailored to client's needs, utilizing top-tier design tools such as Altium Designer, Autodesk Eagle, KiCad, EasyEDA, Siemens PADS, DipTrace, Allegro/OrCAD, Fritzing and Proteus. My goal is always to ensure the highest quality and performance in every project. Core Expertise : • Schematic Capture & Layout Design • Component Selection & Library Management • Reverse Engineering (PCB Replication, PCB Cloning) • Gerber, BOM, and CPL File Generation & Manufacturing Support • Design for Manufacturability (DFM) and Design for Assembly (DFA) • PCB Design & Development (Single, Double, Multi-Layer, Flexible PCBs) Industries Served : • Medical Devices • Telecommunications • Consumer Electronics • Industrial Equipment • Automotive Electronics • Safety and Security Devices Why Choose Me? • Attention to Detail and Commitment to Quality • Strong Communication Skills & Client-Centric Focus • Timely Delivery & Flexible Approach to Meet Project Requirements I would love to help you with your next PCB design project. Feel free to reach out, and let’s discuss how I can bring your ideas to life! Best Regards, Utpal
$140 USD in 5 days
5.5
5.5

Hello, I can help you convert your functional breadboard robot prototype into a clean, production-ready KiCad PCB with a strong focus on reliability, EMI reduction, and manufacturability. What I will provide: • Complete schematic capture and professional PCB layout in KiCad • Solid GND planes on both layers for improved noise reduction and signal integrity • Proper power routing with optimized trace widths for motors and battery lines • Decoupling capacitors, protection components, flyback handling, and design review for robustness • Integration of ESP32 DevKit V1 socket headers, motor driver stage, buck converter, servo headers, TFT connector, battery input, and motor terminals • Clean connector placement for easy assembly and maintenance • 3D PCB model and production-ready outputs Deliverables: 1. Full KiCad project files (schematic, PCB, libraries) 2. Gerber files, drill files, and BOM 3. STEP 3D model of the PCB I also review the overall design and can suggest improvements to power stability, EMI performance, thermal handling, and future scalability before finalizing the layout. I have experience in embedded hardware and PCB design for control systems and power electronics, so the board will be designed with practical manufacturing and real-world reliability in mind. Once you share the pinout tables and connection diagrams, I can start immediately.
$200 USD in 7 days
5.3
5.3

⭐⭐⭐⭐⭐ Hello, I can help convert your working breadboard robot into a clean, production-ready KiCad PCB while also improving overall electrical robustness and EMI performance. I’ve worked on ESP32-based motor-control boards and understand the common issues that appear when moving from breadboard prototypes to compact PCBs — especially motor noise, voltage dips, grounding problems, and servo interference. For your board I would: • Implement solid GND planes on both layers with proper return-current paths • Separate noisy motor power routing from ESP32 logic/signal sections • Add proper bulk + local decoupling near ESP32, servos, TFT, and H-bridge • Verify flyback protection and switching noise suppression • Size traces correctly for battery and motor current paths • Improve connector placement for easier wiring and assembly I can also recommend a more efficient H-bridge alternative to L298N if desired, since L298N wastes significant power and generates heat. Deliverables: • Complete KiCad project (schematic, PCB, libraries) • ERC/DRC-clean layout • Gerbers + drill + BOM • STEP 3D board model • Production-ready fabrication outputs I’m comfortable working directly from pinout tables, hand-drawn wiring references, or prototype photos/videos. Best regards.
$140 USD in 7 days
4.5
4.5

I read your brief for the mobile robot PCB. I specialize in robotics hardware and mixed-signal PCB layouts, and I would be glad to seamlessly convert your breadboard prototype into a professional, production-ready board in KiCad using your exact specifications. My Execution Plan: Exact Architecture: I will implement the layout exactly as you requested, incorporating the ESP32 socket headers, the L298N logic for the H-Bridge, the LM2596 buck converter for the 5V rail, and your specific connector requirements (JST-XH, 3-pin headers, and screw terminals). Robustness & EMI Reduction: To ensure the board is highly reliable, I will add properly sized decoupling capacitors, ensure flyback diodes are placed for the motor circuits, and calculate thick trace widths for the 8.4V and 5V power lines to handle motor stall currents. The layout will feature solid, unbroken copper ground planes on both the top and bottom layers to minimize interference. Turnkey KiCad Delivery: I will deliver the complete native KiCad project (Schematic, PCB, and local libraries), along with fabrication-ready Gerbers, Drill files, the BOM, and a 3D STEP model of the finished board.
$220 USD in 7 days
4.4
4.4

With a vast array of skills encompassing Electrical Engineering, Electronics, and PCB Layout, I humbly believe I am the ideal candidate for your KiCad PCB Design project. My experience involves intricate electronic designs and creating functional solutions that meet clients' specific requirements. Notably, I excel in ensuring robustness, EMI reduction, and overall reliability of projects - enhancing their performance and longevity - all qualities you require for your mobile robot control board. KiCad is one of my key specialities, and I always design PCBs to the highest standard to ease the production process. I will not only convert your breadboard prototype into a professional-grade PCB but also undertake a thorough review to suggest valuable improvements. My proficiency includes implementing essential components like decoupling capacitors and flyback diodes where necessary, as well as ensuring proper trace widths for power lines. Furthermore, will provide comprehensive documentation and a 3D STEP model alongside deliverables like Gerber Files and BOM files.
$120 USD in 2 days
5.0
5.0

Are you looking for a PCB engineer to convert your working breadboard robot prototype into a clean, production-ready KiCad PCB, with design improvements for stability, EMI control, and reliable field use? I’m an Electrical and PCB design Engineer specializing in PCB design, embedded systems, and hardware optimization. I have experience converting prototypes into manufacturable boards with proper grounding, power integrity, and motor-noise isolation. Scope I Can Support • Schematic recreation from breadboard prototype • PCB design in KiCad • ESP32 DevKit integration (30-pin headers) • Motor driver + power stage layout • Buck converter integration • Connector arrangement and routing • Design review for robustness and reliability Deliverables • Complete KiCad project (schematic + PCB) • Gerber + drill files • BOM • STEP 3D model • Source libraries • Design notes for assembly/testing Additional value I can also review whether replacing L298N with a more efficient H-bridge improves battery life and thermal performance, since L298N can be inefficient for compact battery robots. I can start immediately once you share the breadboard wiring, pin tables, and connection diagrams. Best regards, Hasan
$110 USD in 2 days
3.9
3.9

Hello, I’ve worked on multiple ESP32-based PCB projects before, and you can check my portfolio for related designs and hardware work. I can convert your breadboard prototype into a professional production-ready KiCad PCB while improving the design for better reliability, cleaner power distribution, and reduced EMI/noise. I will provide: * Full KiCad project files * Schematic + PCB layout * Gerbers, drill files, and BOM * 3D STEP model * Proper ground planes, decoupling, and power routing optimization I can also review the motor driver and power section to suggest better practical improvements if needed. Ready to start once you share the diagrams and connection details.
$200 USD in 7 days
3.9
3.9

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