Compact Ethernet PCB Design

@macroenergy

Dear Sir, It's a pleasure to come across a project that aligns so closely with my skillset and expertise. With over {number of years in the field} years of experience in electrical engineering, PCB layout, and embedded systems, I have a deep understanding of the components and considerations involved in designing your compact Ethernet PCB. Moreover, my proficiency in Arduino and C++ programming will allow me to seamlessly adapt your existing stable firmware into the new layout, ensuring no loss or compromise on functionality. Drawing from my extensive knowledge of microcontrollers including ATmega32U4, ESP32-Ethernet, STM32, and others, I am well-positioned to select the most size-efficient option for your customized board. The final design will fulfill all your requirements- with hard-wired Ethernet via an RJ45 connector, onboard 12 V power input sensed from 0-15 V, an integrated temperature sensor, and even a standard USB or UART header for easy firmware updates. Delivering beyond these specifications, I'll also provide you with readily usable editable schematic and PCB layout files along with gerbers, drill files,BOM and your manufacturer part numbers. Additionally,I would create a bring-up guide which will guide you through each steps of flashing new firmware and verifying Ethernet link,voltage readings,and temperature data documentation anywhere over the network.

@Amidst

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!

@debosx

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

@Feriver

Hello, Your requirement is a compact, production-ready redesign—not just layout, but smart component selection and reliability. I will migrate your existing firmware to an optimal MCU (likely ESP32 with Ethernet PHY or STM32 + LAN8720) balancing size, power, and native Ethernet stability within the 70×50 mm constraint. The design will include RJ45 with proper magnetics, 12V input (0–15V sensing via divider + ADC protection), regulated power stage, and an accurate onboard temperature sensor. I’ll ensure clean routing (impedance-aware Ethernet traces), noise isolation, and a USB/UART programming interface for seamless firmware updates. Deliverables include full schematic, PCB files, Gerbers, and a precise BOM with manufacturer parts. I’ll also provide a concise bring-up guide covering flashing, Ethernet link validation, voltage sensing calibration, and temperature readout verification. Timeline: 4–6 days Rate: $180 AUD Thanks, Asif

@abdurRafiqM

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq

@nichitav7

Hello I will condense your working Arduino Wi-Fi prototype into a compact, production-ready Ethernet-enabled PCB while preserving firmware compatibility and simplifying future updates. Confirmations • Analyze your existing C++ code and map hardware dependencies • Select optimal MCU (likely ESP32 + Ethernet PHY or STM32 + LAN PHY based on size, power, and stack compatibility) • Ensure ≤70×50 mm layout with clean power, grounding, and EMI control • Integrate RJ45 (MagJack), 12V input (0–15V sensing via ADC divider), and digital temperature sensor • Provide USB or UART bootloader interface for easy firmware flashing (no special tools) Design Approach • Prioritize minimal footprint + high integration (reduce external components) • Robust power stage (12V → regulated rails, noise-safe for ADC accuracy) • Verified Ethernet reference design (PHY + magnetics routing, impedance control) • Code portability validation (adaptation if needed, not rewrite-heavy) Deliverables • Editable schematic + PCB (Altium/KiCad) • Gerbers, drill files, fabrication-ready outputs • Complete BOM with manufacturer part numbers • Bring-up guide: flashing firmware, Ethernet link test, ADC voltage validation, temperature readout Key Question • Does your current firmware rely on Arduino core specifically, or are you open to ESP-IDF / STM32 HAL if needed for stability and Ethernet performance? Regards, Nichita

@adily1

Hey , I just finished reading the job description and I see you are looking for someone experienced in Circuit Design, C++ Programming, Electronics, PCB Layout, STM32, Microcontroller, Prototyping, Arduino, Embedded Systems and Electrical Engineering. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback since the last 5-6 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Adil.