Finalize ESP32 PoE Speaker PCB

@Mahihassi

As an electrical engineer with extensive experience in firmware development, PCB design, and complete IoT product engineering, I am the ideal freelancer for finalizing your ESP32 PoE Speaker PCB. I have a Master's degree in Embedded Systems that vastly complements my skillset and ensures optimal design solutions that blend hardware, software, and connectivity seamlessly - exactly what your project requires. Not only am I proficient in KiCad, Altium Designer, and Eagle as you mentioned, but also comfortable with merging back the export files to facilitate effective collaboration. My proficiency extends to understanding RF hardware intricacies such as antenna keep-outs and differential pair lengths. Moreover, my multilayer board design approach emphasizes considerations like compactness - essential for your smart speaker.

@MuhammadUzair16

Hi I am an embedded systems engineer with over 16 years of experience. I have extensive experience designing production-ready ESP32, PoE, mixed-signal audio, microphone, and RF PCBs in KiCad, including full consumer-grade product development from concept through manufacturing. I can review and refine the existing schematic, paying particular attention to PoE isolation and power integrity, amplifier stability, low-noise microphone routing, level shifting, grounding, and protection. I will then create a compact multilayer layout with proper antenna clearance, controlled differential routing, thermal design, and practical assembly considerations. The final package will include updated KiCad sources, BOM with available alternates and supplier links, Gerbers, drill files, STEP model, and concise assembly/testing notes. Before starting, I would like to confirm the intended PoE standard, board size or enclosure constraints, preferred PCB manufacturer, and whether the existing connectors and mechanical locations are fixed. I can also provide firmware bring-up support if needed after fabrication. Please contact me to discuss details.

@amelectronics

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.

@macroenergy

With over a decade of extensive experience in Circuit Design, Electrical Engineering, Electronics, Embedded Systems and PCB Layout, I strongly believe my skills align perfectly with the remaining tasks for your ESP32-PoE smart speaker project. Throughout my career, I have focused on ensuring strong digital motor control, analog design and electronic implementation skills which largely coincide with your current circuitry needs. Moreover, an expert in Altium Designer, I am highly experienced in producing clean multilayer PCB layouts and pay great attention to necessities such as antenna keep-outs and differential pair lengths to ensure efficient overall compactness. This in turn minimizes signal distortions and interference, ensuring optimum performance for your smart speaker. Outlooks are important for me and using meticulous eye I make sure to meet essential requirements like isolation checks for the PoE system or any level shifting required for audio amp sections. Feel free to provide a timeline you would like me to work with and let me know if there's anything more you'd want me to recall on! On receipt of these details, I will be more than ready to dive into this project and provide solutions that exceed your expectations.

@markoa7

I see you're polishing the KiCad schematic to verify PoE isolation and mic routing. I previously delivered production KiCad-to-Altium workflows for PoE ESP32 boards with clean differential traces and complete BOMs. Plan: - Polish schematic: verify PoE isolation, audio amp, mic routing, and level shifting. - Layout: compact multilayer PCB with antenna keep-outs and controlled differential lengths; provide Gerbers, drill data, 3D STEP. - BOM: complete BOM with in-stock alternates and supplier links. Portfolio: https://www.freelancer.com/u/markoa7 One clarifying question: Which PoE standard (IEEE 802.3af/at) do you intend to support, and is there a preferred isolation/topology for the power path I should model early? Happy to hop on a quick call to discuss Marko Aleksic

@engrusmanfaiz

I can take the existing KiCad project and turn it into a clean, fabrication-ready PCB while verifying the schematic and critical hardware sections. I will review the PoE isolation, audio amplifier, microphone routing, level shifting, power rails, and component ratings before layout. The PCB will be designed with proper multilayer stack-up, antenna keep-outs, controlled routing, grounding, and differential-pair requirements. I will also optimize component placement and routing for a compact, reliable production design. The BOM will include manufacturer part numbers, practical in-stock alternatives, and supplier information. Deliverables will include the editable KiCad source, Gerbers, drill files, BOM, 3D STEP model, and concise assembly/build notes. I have strong experience with ESP32, IoT hardware, audio interfaces, RF/antenna layouts, and production PCB design. I can work directly with the existing KiCad files in the GitHub repository and maintain compatibility with your project. Estimated timeline is 5 days depending on the current schematic condition and required revisions. Regards Engr Muhammad Usman

@mairajali11

As a seasoned Electrical/Electronics Engineer with over 8 years of specialized PCB design experience, I’m confident that I can provide the professional touch your open-source ESP32-PoE smart speaker needs. My proven track record in PCB layout and design, coupled with my proficiency in KiCad, Altium Designer, Eagle, and EasyEDA aligns perfectly with your project requirements. I take a meticulous approach to all my projects and guarantee compliance with critical factors such as antenna keep-outs, differential pair lengths, and compactness. My extensive skills in circuit and embedded systems design will ensure that the schematic is refined to verify PoE isolation, audio amp section, mic routing and any level-shifting to meet your specific needs. I'll also build an optimized BOM with readily available supplier links and alternates, carefully considering lead times. As a top-ranking Preferred Freelancer, I'm part of the top 1% of skilled professionals. This stature speaks volumes about my commitment to delivering quality even under tight deadlines. With me heading the PCB design side, you can solely focus on firmware development and functional testing. Let's get started so we can wrap this board up swiftly while ensuring the highest quality for your project.

@hayteekeys

As an accomplished Hardware and Firmware Engineer, I understand the meticulousness required in finalizing hardware designs like yours. That said, I am more than capable and experienced to handle the task. Over the years, I've specialized in and successfully delivered various advanced embedded systems, IoT devices, and PCB hardware solutions with HAYTEE INTEGRATED TECH. I have comprehensive expertise using KiCad, but self-navigating in Altium Designer or Eagle won't be a problem—tellingly, your project's needs are my priorities. Among the enviable skills in my arsenal are circuit design, schematic capture, multilayer PCB layout, signal integrity optimization. These skills will come to bear perfectly as we shift towards a polished design pattern that respects important antenna keep-outs, differential pair lengths among other critical design parameters. I guarantee an optimally clean final output—a design that's compact, aesthetically appeasing and hassle-free for future fabrication. Perhaps what stands me out even more significantly is my completeness drive on every task—providing you not just with hardware solutions but also offering value-added insights such as time- and cost-effective part alternatives and their distinct lead times. Indeed, my intention is to help you round up this ESP32-PoE smart speaker project effortlessly.

@yaroslavmark

Hi, I have experience designing and reviewing ESP32-based mixed-signal hardware with Ethernet, USB, audio interfaces, isolated/protected power domains, and production-ready multilayer PCBs. I have completed designs with 10+ protected I/O channels, 100BASE-TX routing, controlled return paths, BOM/MPN validation, and full Gerber/CPL/STEP manufacturing releases. Approach ✅ I will audit the existing KiCad schematic against component datasheets, focusing on PoE isolation/power, Ethernet PHY/magnetics, audio amplifier, microphone path, level shifting, and ESP32 support circuitry. ✅ I will create a compact multilayer layout with correct differential-pair geometry, antenna keep-out, isolation clearance, low-noise audio grounding, short switching loops, thermal paths, and EMI-aware placement. ✅ I will complete ERC/DRC/DFM checks and deliver updated KiCad sources, Gerbers, drills, STEP model, BOM with available alternates, and concise assembly/test notes. Questions ✅ Which PoE standard/class and maximum speaker output power must the finished board support? ✅ Are the current schematic, PCB constraints, enclosure dimensions, and preferred PCB/assembly manufacturer already fixed in the repository? Best, Yaroslav

@hayat38402

I am Muhammad Javed, a professional PCB designer and Firmware developer with expertise in embedded systems, electronics prototyping, PCB layout, circuit design, and circuit simulation. I use the following tools for designing • Altium Designer | Proteus • KiCAD | Eagle CAD | EasyEDA • Multisim | LabVIEW • PSpice | LTspice • TinkerCAD As a Design Engineer, I've rich background in following: • Analog and digital circuit design • Embedded C/C++ Programming. • VHDL | Verilog, Quartus | Vivado • Microcontrollers like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. • IDEs like Keil MDK V5, ATmel studio and MPLab XC8. • Communication protocols like SPI, I2C, I2S, CAN, RS232, RS485, etc. My PCB design covers the following substances:  Single Sheet to Multi sheet Schematics  Single/double-sided and multi-layer PCBs layouts  Power Supply (SMPS & LDOs)  RF & High-speed layouts  Typical data and control interfaces: UART, USB, SPI, I2C, SDIO etc.  EMC/EMI emission control techniques I will provide you complete PCB design with  Schematics diagram  Gerber files  Take and Place  Bill of materials  Components selection  Assembly layout

@SPARKtechBD

Since 2003 I am working in Digital Electronic. So more than 18 years of experience in Electronics. Arduino NANO/UNO/MEGA, ESP32 and Raspberry PI to build a digital device to read sensor data and send it to the web server, motor control, control relay switches and LEDs. More than 5(five) years of experience in Arduino design and build. If you want an excellent and error-free project delivery, then send a message to me, please. Have more than 10(years) years of experience in C/C++ to build Windows/Linux applications and micro-controller firmware building. If you want a good job delivery, then send a message to me, please. Since 1995 I have been working on Analog and Digital Electronics to build any kind of device. I have build lots of devices. So more than 20 years of experience on Electronics. Including power supply design. Any kinds of schematic and PCB design. Expert PCB design in EasyEDA Pro IDE.

@hamzazayyad

Hello, The real challenge here is the mixed-signal stack: PoE puts 48V and an isolated DC-DC on the same board as the audio amplifier, mic, and ESP32 RF. Creepage/clearance for isolation, mic routing away from switching noise, antenna keep-outs under the module, and balanced Ethernet pair lengths decide whether it sounds clean and passes EMC. With 15+ years of experience, I focus not only on developing the electronics and firmware, but also on making the overall development process clear, practical, and reliable for the client. I have taken compact audio boards and mixed-signal power designs from schematic to fab-ready deliverables — Gerbers, drill data, 3D STEP, and a BOM with in-stock alternates and realistic lead times. I can have a production-ready layout and full fabrication pack to you within 3–4 weeks. Send me the repo plus board-size and cost targets, and I'll begin with a schematic design review to close the open items. Best regards, Hamza

@Mahmoud00Ibrahim

Hello, I can take the existing ESP32-PoE Home Assistant speaker design and turn it into a clean, fabrication-ready PCB while preserving the existing concept. I’ll refine the KiCad schematic, verify the PoE isolation, audio amplifier, microphone routing, level shifting, and power sections, then handle the multilayer PCB layout with proper antenna keep-outs, differential routing, grounding, and DRC. I’ll also prepare a realistic BOM with available alternatives and supplier links, then deliver the updated KiCad source, Gerbers, drill files, 3D STEP model, and concise assembly/testing notes. I’m an experienced Hardware & Embedded Systems Engineer with 50+ completed projects, including multilayer ESP32/STM32 boards, high-speed interfaces, power management, and production-ready designs. Timeline: around 5–7 days after reviewing the existing files and requirements.

@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

@shadabkhan92

With our extensive experience building and finalizing IoT devices, we're confident that we can give your ESP32 PoE Speaker PCB the professional touch it needs. Our proficiency in KiCad, Altium Designer, and Eagle, combined with our deep understanding of circuit design, electrical engineering, and PCB layout will ensure we deliver a polished and production-ready board that respects all necessary parameters such as antenna keep-outs and differential pair lengths. At our core is the ability to create AI-infused systems that seamlessly integrate with existing workflows - exactly what your project requires. While your focus lies on firmware development and functional testing, you can rest assured knowing that the hardware aspect of your project is in safe hands. In terms of timeline, we value quality and efficiency without compromising one for the other. We'll work closely with you to define clear milestones so as to ensure on-time delivery and accurate updates at each step of the process. Let's cross those boundaries between AI and hardware together, optimizing your project in ways others may not have even considered. With us on board, you're getting more than just a freelancer; you're getting a partner aligned to your vision for success.

@mahmoudralizadeh

This is a fantastic project to step into—an open-source PoE speaker where the concept is solid but the hardware needs a professional engineering pass before fabrication. I love that you've documented everything so thoroughly. With 10+ years in PCB design and a Master's in electronics and mechatronics, I've taken many boards through exactly this stage: schematic review, multilayer layout, and manufacturable release. PoE isolation, differential pairs, and amplifier thermal design are all familiar territory. Here's how I'll get this wrapped: • Refine the KiCad schematic—PoE isolation, PCM5122/TPA3116D2 stages, mic routing, level-shifting • Multilayer layout with Ethernet MDI pair matching, antenna keep-outs, and clean grounding • Full BOM with in-stock alternates and supplier links • Gerbers, drill data, 3D STEP model, and concise build notes • Export files ready to merge back into your KiCad repo I'll respect the license and keep this to your scope. Send over the Rev E source and I'll dive straight in.

@electronicsdone

Dear Client, Yes—I’m happy to start with finalizing the ESP32-PoE smart speaker from the existing KiCad project. The key is not redesigning what works, but closing the PoE, Ethernet, audio and RF details before fabrication. PCB Must Innovations brings 30+ years of electronics/PCB experience across ESP32, Ethernet/PoE hardware, audio circuits, mixed-signal design, controlled impedance, EMI/EMC and DFM. Profile: https://www.freelancer.in/u/electronicsdone I can refine the schematic, verify PoE isolation/protection, audio amplifier and microphone paths, level shifting and power rails, then complete placement/routing, differential pairs, antenna keep-out, BOM alternatives, Gerbers, drill files and STEP output. The amateur trap is seeing an open-source design that almost works and assuming the last 10% is cosmetic. Haha, that last 10% is usually where EMI, audio noise and assembly surprises live. I’m happy to offer a free consultation first so we can identify the remaining hardware risks before layout is frozen. One question: has the existing revision already been physically built and tested, or are the remaining issues based only on schematic/layout review? Message me with that answer and I’ll outline the hardware review, layout and manufacturing checkpoints before you commit. You’ll get a production-ready board with clear build notes and no unnecessary redesign. Kind Regards Prat PCB Must Innovations

@maksymstel

Okay, I got what you want exactly. I am a Full Stack Engineer with 10 years of experience, providing KiCad, ESP32, PoE, audio circuits, multilayer PCB layout, BOM, and manufacturing files. In my opinion, I can clean up your existing schematic and turn it into a reliable, compact, production-ready PCB. I will pay special attention to PoE isolation, audio and microphone routing, antenna clearance, and proper power layout. This project is very similar to my previous works. I have worked on ESP32 boards, audio circuits, PoE/power systems, and compact PCB layouts. I can also prepare the complete BOM and manufacturing package. The most important skill is PCB layout, especially for mixed-signal ESP32 designs. I will keep the RF, audio, power, and Ethernet sections properly separated and routed. So, I will divide your project into three major steps. 1️⃣ Review and improve the schematic and components. 2️⃣ Complete the PCB layout and check all critical routing. 3️⃣ Finalize BOM, Gerbers, drill files, STEP model, and build notes. Via private chatting or meeting, I will provide the creative idea and good tech solution for your project. Best regards. Maksym

@Santoshchaulaga

Hello, I am Santosh Chaulagain, a professional Electrical Engineer and PCB Designer with over 7 years of experience in schematic design, PCB layout, and embedded systems, including ESP32, IoT devices, analog and digital circuits. I have successfully completed multiple projects for clients worldwide, delivering reliable and manufacturable designs. I have carefully reviewed your project requirements and I am confident that I can provide a high-quality solution tailored to your needs. My expertise includes PCB design using industry standards, component selection, BOM preparation, Gerber generation, and design optimization for cost and performance. I always ensure that my designs are fabrication-ready and tested for reliability. I focus on clear communication, timely delivery, and customer satisfaction. I am happy to discuss your project in detail and provide revisions until the final result meets your expectations. Looking forward to working with you. Best regards, Santosh C. Electrical Engineer | PCB Designer | ESP32 & IoT Specialist