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I need a PCB designed to replace our current modular setup for a monitoring system based on the ESP32. The PCB will need to incorporate the following: Essential Interfaces: - RS485 interface (primary communication method) - Ethernet interface Power Management: - Step down from 36V to 5V DC and 3v3 Additional Components: - Status LEDs - Reset button - Debugging interface -2 general IOs The PCB should have specific dimensions and the terminals specific positions. Ideal Skills & Experience: - Proficient in PCB design, especially with ESP32 - Experience with RS485 and Ethernet interfaces - Knowledge in power management circuits - Familiar with integrating status LEDs, reset buttons, and debugging interfaces Please provide a portfolio with similar projects. Looking forward to your bids!
Project ID: 40208066
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Active 3 mos ago
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Hello, Please check my portfolio first to see similar ESP32-based PCB designs. This type of project—ESP32 monitoring boards with RS485, Ethernet, and power management—is exactly what I specialize in. I can design a single, production-ready PCB to replace your modular setup, including: RS485 & Ethernet interfaces 36V to 5V & 3.3V power regulation Status LEDs, reset button, debug interface 2 general-purpose I/Os Fixed board dimensions and connector positions Looking forward to discussing the details. Best regards, Ahmed
€275 EUR in 11 days
3.4
3.4
76 freelancers are bidding on average €451 EUR for this job

With a Master's degree in Embedded Systems, I specialize in PCB design and firmware development that precisely suits your project needs. I have ample experience with the ESP32 microcontroller, which is at the heart of your monitoring system. Alongside this, my expertise in RS485 and Ethernet interfaces aligns perfectly with your requirements and I can surely provide you with a design that ensures seamless communication with the host system. One of the crucial aspects of your project is power management to step down voltages. I hold a deep understanding and knowledge of power management circuits and their integration in design which will be perfectly helpful for your power-demanding device. Apart from that, I bring to the table my familiarity with integrating various components including status LEDs, reset buttons, debugging interfaces, GPIOs that are needed for your device functionality.
€750 EUR in 7 days
8.2
8.2

As a full-service product development team, we are a one-stop solution for your PCB design needs. With an extensive skill set in electrical engineering and microcontroller systems, we bring the perfect blend of expertise and creativity to your project. Having worked on numerous IoT devices and embedded systems in the past, we are well-versed in the intricacies of PCB design for monitoring systems like yours, particularly those based on ESP32. Our deep understanding of essential interfaces such as RS485 and Ethernet and proficiency in integrating features like status LEDs, reset buttons, and debugging interfaces make us an ideal fit for your project's demands. In terms of power management, we have vast knowledge in designing step-down circuits which will allow us to provide you with reliable solutions for your DC conversion needs from 36V to 5V DC and 3v3. Furthermore, our reputation for delivering projects that prioritize reliability, manufacturability, and cost optimization will greatly benefit your project. With defined milestones and transparent communication throughout the process, we guarantee not just a high-quality PCB design but also a smooth collaborative experience. So why wait? Let's start building your next connected product together!
€750 EUR in 15 days
7.6
7.6

Hi, I have experience in designing Circuits and can complete your project. I have expertise in the following: 1- Designing schematic and PCBA 2- Ordering the PCBA and getting boards manufactured. 3- Writing firmware for the PCBA to make sure everything works as expected. 4- I can also develop smartphone apps to communicate and control the hardware. If you wish we can discuss in chat. Thank you.
€700 EUR in 20 days
7.4
7.4

Hello, As an experienced electronic hardware and firmware engineer, I strongly believe that I bring a unique blend of skills and expertise that make me the ideal fit for your ESP32 monitoring system project. PCB design is one of my core competencies, with specialization in power management circuits and multilayer designs specifically for embedded systems like the ESP32. My familiarity with integrating RS485 and Ethernet interfaces will ensure seamless communication capabilities for your monitoring system. Moreover, I have successfully developed numerous efficient LED driver circuits in the past, which demonstrates my ability to integrate status LEDs smartly as per your project needs. Additionally, my knowledge of power supply circuitry will be invaluable in stepping down volts from 36V to 5VDC and 3V3. A project at this level requires not only design but also a deep understanding of firmware development for microcontrollers like the ESP32. My extensive experience in programming the ESP32 and other similar microcontrollers coupled with proficiency in communication protocols assures you an expert who can smoothly design and develop a product bespoke to your specifications. With me on board, you can be assured of timely, reliable solutions without any compromise on quality or performance. Let's discuss how I can turn your vision into reality. Thanks!
€500 EUR in 2 days
6.7
6.7

As a seasoned electrical engineer adept in PCB design, I believe I have the necessary skills and experience to take on your project. Over the past 8 years, I’ve completed numerous PCB designs for embedded systems utilizing various microcontrollers, including the ESP32. My extensive knowledge extends to incorporating interfaces like RS485 and Ethernet, which are vital components of your monitoring system. Furthermore, with my solid expertise in power management and incorporating additional components such as status LEDs, reset buttons, and debugging interfaces, I guarantee a comprehensive and efficient solution for your needs. Alongside my experience, my passion for this domain drives me to continuously stay updated with the latest technological advancements in PCB design. This ensures that my solutions imbibes cutting-edge functionalities while meeting specific dimensions and terminal positions like the one you require. Moreover, as the top 1% preferred freelancer on the platform with a verified portfolio that showcases my skillset effectively - including a certificate as an EasyEDA designer - my commitment to delivering top-notch results on time has been consistently affirmed. Choose me and let's turn your ideas into a tangible reality that surpasses even your expectations.
€400 EUR in 7 days
6.7
6.7

Hi, I can design a compact, production-ready PCB integrating ESP32, RS485, Ethernet, and 36V→5V/3.3V power to replace your modular monitoring setup, with all interfaces and components laid out to your specific dimensions and terminal positions. MY APPROACH ESP32 Module: Select appropriate variant (ESP32-WROOM, ESP32-S3, etc.) with proper decoupling, antenna routing, and programming interface. RS485: Isolated transceiver (e.g., ADM2582E) with TVS protection and termination resistor footprint. Ethernet: PHY (LAN8720 or W5500 SPI module) with magnetics, RJ45 connector, and proper impedance-controlled routing. Power: Robust 36V→5V buck (e.g., LM5164, TPS54331) + 5V→3.3V LDO, with thermal management and input protection (TVS, fuse). Extras: Status LEDs, reset button, UART/JTAG debug header, 2× general-purpose I/Os (GPIO headers or screw terminals). Mechanical: Layout to your exact board dimensions and terminal positions with mounting holes and keepouts as specified. DELIVERABLES Schematic + PCB layout (KiCad/Altium/EAGLE) Gerbers, drill, BOM ready for fabrication Assembly drawing with designators TO START Target board size and terminal positions Preferred Ethernet solution (PHY or SPI module)? Screw terminals or connectors for RS485/power/GPIO? Ready to deliver a clean, DFM-compliant design quickly.
€320 EUR in 3 days
6.4
6.4

I can design a compact, production-ready ESP32 PCB to replace your modular monitoring system. Strong experience with ESP32, RS485 primary comms, and integrated Ethernet PHY/MAC designs. Proven power designs stepping 36 V down to stable 5 V and 3.3 V with EMI control. I routinely integrate status LEDs, reset circuitry, debug headers, and spare GPIOs. Exact board dimensions and terminal placement will be followed without compromise. Schematics, layout, and DFM-ready Gerbers will be delivered. I have completed similar industrial monitoring and control boards. Portfolio available on request; ready to start immediately.
€390 EUR in 3 days
6.6
6.6

Hi, I am an electrical engineer with more than 7 years of experience in PCB design and embedded systems. I have strong experience with ESP32-based boards, RS485 communication, Ethernet interfaces, and power supply design including high-voltage (36V) to 5V and 3.3V regulation. I have designed up to 8-layer PCBs covering mixed-signal, high-speed digital, analog, and power converter designs. I can deliver a compact, reliable PCB with exact dimensions, proper EMC practices, and full production-ready files. I can also share similar project samples.
€500 EUR in 7 days
6.6
6.6

As a seasoned Embedded Systems Engineer and Professional PCB Designer, I am confident in my ability to meet your demands for the ESP32 monitoring system overhaul. With my solid proficiency in PCB design for the ESP32, sound knowledge of RS485 and Ethernet interfaces, power management circuits, and integrating various components, I am poised to deliver exceptional work. Just as customer satisfaction is paramount to you, it's equally important to me thus I ensure work delivery that is both on time and of top-notch quality all at reasonable rates. One key benefit of working with me is the added value of free support and maintenance after completion. This ensures that any issues or additional adjustments will be promptly handled until you are completely satisfied with the final product. So let's take this opportunity of actualizing your vision with innovation and precision! Reach out now via message or simply hit that ‘Hire Me Now’ button! Let's create something impactful together!
€500 EUR in 4 days
6.4
6.4

Hi, I can design this as a clean, production-ready ESP32 carrier board that replaces your modular setup while keeping RS485 as the primary comms, adding Ethernet, and handling 36V → 5V / 3.3V power conversion safely and efficiently. I have solid experience designing ESP32-based monitoring and control boards, including RS485 networks, and high-voltage DC step-down power stages. I’ll ensure correct termination, protection, EMC-aware layout, and precise connector placement to match your mechanical constraints. Deliverables would include schematic, PCB layout, and manufacturing files, with clear documentation for bring-up and debugging. Happy to share relevant ESP32 and industrial monitoring PCB examples on request.
€750 EUR in 14 days
5.8
5.8

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!
€330 EUR in 5 days
5.6
5.6

Hi, I have experience of building such systems. You can find similar designs in my portfolio here. Let's discuss your requirements, and make the PCB that you want.
€500 EUR in 7 days
5.4
5.4

Hi, I'm very glad to have an opportunity to help you with PCB design. This job is very appealing to me because I have a lot of experience in PCB design of various kinds of the electronic devices. Especially, IoT devices I also have enough experience in high speed multi-layer routing and RF impedance control. I'm very familiar with Altium, Eagle and KiCAD. I have my own Altium license and Eagle license. So if you hire me, I can start work immidiately. Also, I have 5+ years experience in developing an FW for various MCU such as STM, PIC, Atemga, ESP etc. I'll provide you all design files and manufacturing files (part library, schematic, layout, BoM, pnp, ODB++, assembly document, gerber, DRC document, and 3d model) Also, I can support you for PCB manufacturing and PCBA from our local company(READA company) in Shenzhen, China if you want. We will provide high-quality in PCB manufacturing and PCBA, reliable part sourcing, functional test according to customer's specifications, and quick shipping. Also, I can help you to order PCBs from JLCPCB, PCBWay and SEEEDStudio if you want. I'm confident my skills and experience in PCB design make me a good candidate for your job. Looking forward to hearing from you soon. Kind Regards. Ting
€500 EUR in 7 days
4.9
4.9

Hello! We are experienced in PCB design, specializing in ESP32-based systems. Our expertise includes RS485 & Ethernet interfaces, power management circuits, LEDs, reset buttons, and debugging interfaces. Utilizing Altium Designer, we will create a customized PCB meeting your specifications for the ESP32 Monitoring System with precise dimensions and terminal placements. Our portfolio showcases successful projects similar to yours. Let's kick-start your project smoothly with professional precision. How can we address your specific requirements?
€250 EUR in 3 days
4.7
4.7

Hi sir....Its me Imad, have done multiple projects regarding esp32 and IOT. Thanks for posting the job..................................................
€250 EUR in 2 days
5.1
5.1

Hi, I am an experienced PCB designer with over 6 years in embedded systems, having designed more than 15 ESP32-based PCBs integrating RS485 and Ethernet interfaces for industrial monitoring applications, including systems handling up to 36V input power. In a recent project, I successfully developed a compact 4-layer PCB with integrated step-down power conversion and multiple status indicators, reducing system assembly time by 30%. For your project, my approach would include: (1) schematic design and component selection, focusing on ESP32, RS485 transceivers, and Ethernet PHY; (2) power management design with DC-DC converters for 36V→5V/3.3V; (3) PCB layout following specified dimensions and terminal positions with careful signal integrity considerations; (4) integration of status LEDs, reset button, debugging interface, and general IOs; (5) prototyping and testing for reliable communication and power performance. To clarify project requirements, I would like to ask: Are there specific RS485 termination or biasing requirements? Should the Ethernet interface support PoE or standard 10/100 Mbps only? What are the exact positions and types of terminals and mounting constraints? Are there EMC or environmental certifications required for this PCB? I look forward to delivering a robust, compact, and fully integrated solution for your monitoring system. Best regards, Julian
€500 EUR in 7 days
4.4
4.4

Best ESP32 PCB Design Partner ⭐⭐⭐⭐⭐ Hi, Thanks for sharing the scope so clearly. I’ve worked on ESP32 PCB designs where power integrity and communication reliability mattered. Your project is very doable—the goal is to deliver a production-ready ESP32 PCB with RS485, Ethernet, and stable 36 V to 5 V / 3.3 V power conversion. ✅ How I’ll Help You Succeed 1. Review your mechanical constraints, interface requirements, and electrical specifications before starting layout. 2. Design a schematic and PCB layout integrating ESP32, RS485, Ethernet, power regulation, and required IOs. 3. Apply clean grounding, EMI-aware routing, and proper power management to ensure reliable operation. ✅ I’ve delivered ESP32 and industrial communication boards where robustness, signal integrity, and manufacturability were critical, with clear documentation supporting fabrication and testing. ✅ Before I start, one quick thing: Do you have fixed board dimensions and preferred connector footprints, or should I propose an optimized layout based on your enclosure? If you share that, feel free to message me and we can align quickly Best, Prat PCB Must Innovations
€500 EUR in 2 days
6.4
6.4

Hi, I am an experienced PCB designer with over 8 years of experience in embedded system hardware, having successfully completed more than 15 ESP32-based projects and designed PCBs supporting RS485 and Ethernet communications for industrial monitoring systems with up to 500 devices deployed. I have a strong background in power management, having designed step-down circuits for 12V–48V inputs to multiple voltage rails with 95% efficiency and integrated debugging, status, and control interfaces for modular systems. Approach: ✅ I will first review your existing modular setup and define the PCB layout constraints, including dimensions and terminal positions. ✅ I will design the power management section to step down 36V to 5V and 3.3V with proper filtering and thermal considerations. ✅ I will implement the RS485 and Ethernet interfaces with ESD protection, signal integrity optimization, and required termination. ✅ I will integrate the status LEDs, reset button, debugging interface, and two general IOs while ensuring compact routing and manufacturability. Questions: ✅ Could you confirm the exact board dimensions and terminal positions to ensure the replacement fits your current enclosure? ✅ Are there specific data rates or protocols required for the RS485 and Ethernet interfaces? ✅ Do you have preferred components or suppliers for the step-down regulators and connectors? I am confident I can deliver a robust and reliable PCB replacement that meets your specifications. Best, Yaroslav
€600 EUR in 7 days
4.1
4.1

Hello, I have a lot of experience with designing a PCB with ESP32 with RS485 and Ethernet. We will need MAX485 for RS485 and W5500 for Ethernet. And a Buck Converter for 5V and an LDO for 3V3. Let me know how we proceed. Greetings
€250 EUR in 3 days
4.2
4.2

Hello Employer, I am Dragan M., and I'm excited about the opportunity to work on your PCB design project for the ESP32 monitoring system. Your project requirements align perfectly with my expertise and experience in electronics and PCB design. I understand the critical need to replace your current modular setup with a streamlined PCB that efficiently integrates an RS485 interface as the primary communication method, along with an Ethernet interface for robust connectivity. My extensive experience with ESP32-based designs ensures that I can deliver a reliable solution tailored to your specifications. With a strong background in power management circuits, I can proficiently manage the step-down from 36V to 5V DC and 3.3V, ensuring stable power delivery across the board. I have successfully integrated essential components such as status LEDs, reset buttons, and debugging interfaces in past projects, which will be meticulously incorporated into your design. In approaching this project, I will start by thoroughly reviewing your specific dimension and terminal position requirements, followed by creating a detailed schematic and layout that meets these needs. I am committed to maintaining clear communication throughout the process, ensuring that the final product aligns with your expectations. I invite you to review my portfolio, which includes several projects with similar scope and complexity. I am confident in my ability to deliver a high-quality PCB design that will enhance your monitoring system's performance. Thank you for considering my proposal. I look forward to the possibility of collaborating with you on this exciting project. Best regards, Dragan M.
€500 EUR in 3 days
3.7
3.7

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