HDMI CEC & IR Controller Board Design

@macroenergy

I can develop this compact dual-MCU controller in Altium Designer, from component selection through production-ready manufacturing files. I will first define the power budget, GPIO allocation, programming architecture, and high-speed SPI/SDIO interface between the ESP32-P4 and ESP32-C6. The schematic will include an HDMI connector with CEC circuitry, 5V-to-3.3V E-DDC translation, HPD conditioning, and low-capacitance ESD protection. The CEC interface will be verified against the HDMI electrical requirements before finalizing the pull-up and blocking-diode implementation. The board will also include transistor-driven IR output, a powered and filtered IR receiver input, USB-C power/data, USB-to-UART, automatic boot/reset control, user buttons, status LEDs, and adequately rated 3.3V regulation. Since both MCUs may require programming and debugging, I will provide selectable UART routing and separate JTAG test points. During PCB layout, I will prioritize controlled return paths, HDMI signal protection, power integrity, thermal performance, and the ESP32-C6 antenna keep-out area. The USB-C connector will be placed on the rear short edge as specified. After design-rule and manufacturability checks, I will deliver the original Altium files, schematic PDF, Gerbers, drill files, assembly drawings, BOM with manufacturer/LCSC numbers, pick-and-place files, and an assembled-board STEP model.

@amelectronics

Hi, I can help develop the complete PCB for your ESP32-P4 + ESP32-C6 controller, including the schematic, compact PCB layout, power section, USB-C programming, IR interfaces, HDMI interfaces, and production files. I have experience with ESP32 hardware, custom PCB design, USB, power management, GPIO/peripheral integration, and manufacturing-ready PCB development. I can also pay close attention to RF layout, ESD protection, thermal management, and the compact board constraints. I'd like to review the exact ESP32-P4/C6 variants and HDMI requirements first so I can confirm the interfaces and provide the best implementation approach. Thanks!

@ITECH

My extensive expertise in circuit design and full-cycle product development makes me a strong fit for your HDMI CEC & IR Controller Board. I can handle both hardware and firmware, delivering a compact, reliable design tailored to your requirements. I have hands-on experience with ESP32-P4 and ESP32-C6, including application processing, HDMI interfaces, Wi-Fi/BLE, and MCU-to-MCU communication. My expertise in high-speed buses such as SDIO and SPI will ensure a robust interconnect between both MCUs. I’m also experienced in HDMI signal-integrity design, including controlled-impedance routing, ESD/TVS protection, 5V/3.3V level shifting, DDC (SDA/SCL), and Hot Plug Detect. Beyond HDMI, I can implement reliable IR interfaces, power regulation, USB functions, and appropriate filtering. I focus on production-ready designs with clean schematics, optimized PCB layout, reliable firmware integration, and thorough documentation—ensuring your controller board performs reliably from prototype through final product.

@Mahihassi

As an experienced Electrical Engineer with a knack for Circuit Design and Embedded Systems, I'm excited to take on such a complex and innovative project! I've worked extensively with microcontrollers like the ESP32 and have developed a deep understanding of HDMI CEC and IR protocols over the course of my career. Moreover, my Master's in Embedded Systems has provided me with the technical foundation and holistic mindset necessary to tackle projects from conception to market-readiness - a quality that will ensure every detail of your controller board is engineered to perfection. With over 100 successful IoT product engineering projects under my belt, I have gained substantial expertise in RF Hardware which is vital for this project's success. Notably, I am comfortable using a[] variety of EDA tools like Altium Designer, KiCad, Eagle, EasyEDA, and Targetitesse fast turnarounds. Combined with descriptive schematics and user-friendly interfaces in mind - your customer usability needs are catered for as well. In conclusion, partnering with me means securing the creative power-backed by sector-flexible skills along the full developmental workflow-from schematic design and firmware development to PCB routing and aggregator integration.

@engrusmanfaiz

I can design a compact 4-layer PCB based on ESP32-P4 and ESP32-C6, optimized for reliable HDMI CEC, IR control, and Wi-Fi/BLE connectivity. The schematic will include HDMI CEC, E-DDC level shifting, HPD detection, USB Type-C, USB-UART, auto-programming, and robust power management. I will implement proper ESD protection, TVS devices, and an efficient IR transmitter/receiver interface following your specifications. Special attention will be given to RF layout, antenna keep-out, grounding, and signal integrity for stable wireless performance. The design will be optimized for JLCPCB/LCSC assembly with readily available components and manufacturer part numbers. Deliverables include complete schematics, PCB layout, Gerbers, drill files, Pick & Place files, assembly outputs, BOM, and a 3D STEP model. I will perform ERC, DRC, and manufacturability checks before final delivery to ensure a production-ready design. I have experience developing ESP32-based embedded hardware, high-speed interfaces, and compact multilayer PCB designs for manufacturing. I am confident I can deliver a reliable, well-documented board that meets your technical and production requirements.

@tshibsamuel477

Hi there, I have carefully reviewed your ESP32-P4 + ESP32-C6 HDMI CEC & IR controller requirements and can handle the complete hardware design, from schematic capture and component selection through compact PCB layout and production-ready manufacturing files. As a mechatronics engineer with nearly five years of experience in embedded electronics and Altium Designer, I have worked with the key components and technologies involved in this project, including ESP32-based designs, USB-C, USB-to-UART programming, HDMI-related interfaces, I2C level shifting, IR transmitter/receiver circuits, ESD protection, power regulation, RF-aware PCB layout, and high-speed SPI/SDIO interfaces. I can deliver the complete schematic, compact PCB layout, Gerbers, drill files, BOM with JLCPCB/LCSC-compatible MPNs, pick-and-place files, PDF schematic, and assembled-board STEP model, while carefully addressing RF antenna keep-outs, signal integrity, power integrity, HDMI CEC/DDC protection, and reliable programming/debug access. Please send me a message so we can discuss the mechanical constraints and finalize the architecture. I can move quickly on the first design iteration given my skill set. Best regards, Samuel tshibangu

@MuhammadUzair16

Hi, I am an embedded systems engineer with over 16 years of experience taking connected consumer products from concept through PCB design, firmware support, prototyping, and production. I can design this compact ESP32-P4/ESP32-C6 controller with the CEC, 5V E-DDC/HPD interfacing, protected USB-C programming, external IR driver/receiver circuits, and robust power architecture described. I will first confirm pin allocation and component availability, then complete the schematic and RF-conscious PCB layout, including antenna keep-outs, grounding, ESD protection, test/debug access, and assembly checks. The final package will include editable KiCad files, PDFs, Gerbers, drill and pick-and-place data, a JLCPCB/LCSC-oriented BOM, and an assembled-board STEP model. I can also support bring-up and firmware integration. Do you prefer an ESP32-C6 module with certified antenna performance or a bare-chip RF implementation? I invite you to discuss the board dimensions and manufacturing preferences.

@leonidye

Hi, I’m an experienced electronics and PCB design engineer with strong experience in ESP32-based embedded hardware, high-speed digital interfaces, RF-aware PCB layout, power management, and production-ready manufacturing packages. I can design this ESP32-P4 + ESP32-C6 controller with careful attention to the HDMI CEC/E-DDC interface, 5V-to-3.3V level shifting, CEC protection, HDMI/USB ESD protection, HPD handling, and signal integrity. I will implement the dual-MCU architecture with a reliable SPI/SDIO interconnect, JTAG access, external IR TX/RX interfaces with appropriate driver and filtering circuits, USB-C power/programming, CP2102N/CH340 USB-UART, auto-download circuitry, reset/boot controls, status LEDs, and properly sized 3.3V regulation for P4 and C6 peak loads. The ESP32-C6 RF section will follow recommended antenna keep-out, grounding, and routing practices. Deliverables will include editable KiCad/Altium schematics, PCB layout, Gerbers, NC drill, pick-and-place, optimized BOM with manufacturer part numbers, PDF documentation, and a complete 3D STEP model. I can provide an initial schematic/layout review quickly and proceed through design verification and manufacturing preparation in milestones. Regards,

@tetianam8

⭐⭐⭐⭐⭐ This is a strong match for my 15+ years of electronics and PCB development experience. Your board combines several areas that need to be handled carefully together—ESP32-P4/C6, HDMI CEC/DDC, USB-C, IR, ESD protection, power integrity, and RF layout. I can develop the complete board from schematic through fabrication files, with particular attention to HDMI/USB signal integrity, CEC/DDC level shifting, protection, C6 antenna clearance, thermal design, and a compact manufacturable layout. Deliverables: • Complete KiCad/Altium schematic + PDF • Compact PCB layout with RF and high-speed routing considerations • Gerbers, drill, pick-and-place and assembly files • BOM with manufacturer/LCSC/JLCPCB-friendly parts • Full assembled-board STEP model • JTAG/debug access for both MCUs Before routing, I'll verify the proposed CEC protection, DDC level-shifting arrangement, HDMI 5V handling, P4/C6 communication bus, and power requirements against the relevant reference designs so the implementation is electrically sound. I can also optimize component selection for availability and assembly cost without compromising reliability. Do you already have a preferred PCB size/enclosure, and should I use KiCad or Altium for the final design?

@yaroslavmark

Hi, I’m a senior embedded/PCB engineer with 10+ years of experience and 40+ PCB-based products delivered, including ESP32/STM32 systems, RF, USB, high-speed interfaces, and industrial controllers; I have achieved up to 25% power reduction and 30% PCB footprint reduction through optimized hardware architecture and layout. Approach: ✅ I will define the ESP32-P4/C6 architecture, power tree, SPI/SDIO interconnect, JTAG, USB-UART auto-download, GPIO mapping, and protection strategy. ✅ I will implement HDMI CEC/DDC/HPD interfaces with bidirectional level shifting, ESD/TVS protection, controlled routing, and CEC open-drain requirements. ✅ I will design the IR TX/RX stages, USB-C interface, 3.3V regulation, buttons/LEDs, and ESP32-C6 RF section with proper antenna keep-out and grounding. ✅ I will complete the compact PCB layout, SI/PI and ERC/DRC checks, BOM optimization for JLCPCB/LCSC, Gerbers, P&P, PDF schematics, and assembled-board STEP model. Questions: ✅Which ESP32-P4 package/module and ESP32-C6 package/module do you plan to use? ✅Do you require the C6 antenna to be PCB-integrated, or will a certified external/module antenna be acceptable? Best, Yaroslav

@julianm260

With a solid background in RF engineering, embedded systems, and circuit design spanning over 8 years, I am well-suited to take on your HDMI CEC & IR Controller Board project. My proficiency in designing compact boards that uphold stringent thermal dissipation requirements aligns perfectly with your layout constraints. Moreover, I have extensive experience in implementing high-speed communication buses for effective interconnect between dual-MCU setups, which forms the backbone of this project. I have successfully executed similar projects involving HDMI interfaces such as yours - addressing routing complexities, leveraging level shifting techniques, and concluding with the incorporation of ESD protection/TVS diode arrays for safeguarding all exposed HDMI lines effectively. Building upon my expertise in signal processing and circuit design, I can also ensure the diligent implementation of the infrared interfaces including the transmitter and receiver jacks; while observing appropriate drivers, filters, and decoupling capacitors to optimize IC performance. Thus far in my career, I have derived immense satisfaction from delivering end-to-end hardware solutions that align seamlessly with clients' unique needs. Testament to my robust problem-solving capabilities is my ability to integrate disparate systems with absolute finesse while never compromising on quality or timelines. Given the opportunity, I assure you of a flawless execution - from initial design through exhaustive validation all the way up to comprehensive documentation – culminating in an exceptional HDMI CEC & IR Controller Board that sees your vision turned into reality.

@hayat38402

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas:  Antenna Design (CST, HFSS)  Embedded C Programming.  VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI  MATLAB/SIMULINK  Network Simulator NS2/NS3  Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32.  IDEs like Keil MDK V5, ATmel studio and MPLab XC8.  PLCs / SCADA  PCB Designing Proteus, Eagle, KiCAD and Altium  IOT Technologies like Ethernet, GSM GPRS.  HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.

@Mahmoud00Ibrahim

I can design this ESP32-P4 + ESP32-C6 controller board from schematic to production-ready PCB. I have strong experience in embedded hardware, ESP32-based designs, and compact multi-layer PCB layout, including power, USB, ESD protection, high-speed interfaces, RF constraints, and manufacturing preparation. For this project, I can handle the complete hardware architecture, including the P4/C6 communication bus, HDMI CEC and E-DDC interfaces with proper level shifting and protection, external IR TX/RX drivers, USB-C power/programming, USB-UART and auto-download circuitry, 3.3V power regulation, buttons, LEDs, and JTAG test points. I will pay particular attention to HDMI signal integrity, CEC protection, ESD/TVS placement, USB routing, C6 antenna keep-out requirements, grounding, thermal management, and overall board compactness. Deliverables will include the complete source schematic and PCB files, PDF schematic, Gerbers, drill files, Pick & Place/Centroid, production-ready BOM with manufacturer/LCSC part numbers, and a fully assembled 3D STEP model. I can take the design from the initial architecture through PCB layout and manufacturing-ready files, while keeping the design practical for assembly and enclosure integration.

@shenglin0617

Hello, This is a project I would be very comfortable taking from schematic through production files. I have hands-on experience with ESP32, STM32 and other embedded platforms, along with professional PCB design using Altium Designer. For this board, I can carefully handle the P4/C6 architecture, high-speed MCU interconnect, HDMI CEC/DDC/HPD level shifting and ESD protection, USB-C/UART programming, IR driver/receiver circuits, power integrity, and C6 RF/antenna layout. I also understand the firmware implications of GPIO/RMT, boot, reset, SPI/SDIO and debug interfaces, which helps avoid hardware issues during bring-up. I can provide a clean Altium project, production-ready Gerbers, BOM with LCSC/JLCPCB-friendly parts, Pick & Place data, and a complete 3D STEP model. Being based in China, I am also familiar with the practical requirements of PCB/PCBA sourcing and manufacturing through suppliers such as JLCPCB/LCSC. I can start immediately and would be happy to discuss the schematic and component choices first. Best regards, ShengLin Gu.

@azraazeen9

With a strong background in engineering and PCB design, I assertively offer my expertise to translate your HDMI CEC & IR Controller Board design concept into reality. My working knowledge with complex circuitry and deep understanding of electronic components ensure that your specific needs for the ESP32-P4 + ESP32-C6 are thoroughly met. Specifically, I have ample design experience with interconnectivity buses like SDIO and SPI, making me adept at implementing a high-speed communication system between both MCUs as required. Another speciality I bring to the table is my familiarity with signal logistics and voltage shifting which proves crucial in designing for HDMI interfaces such as CEC 2.0 & E-DDC compatibility, an aspect your project highlights. I understand the significance of maintaining logical levels while preventing glitches and interferences between operational sections. In line with this, I have considerable practice in integrating I2C logic level converters and properly routing power supplies to ensure efficient functioning.

@ssumitkumar7800

As a seasoned freelance embedded systems designer and signal processing specialist, I can confidently say that I possess the expertise necessary to successfully complete your HDMI CEC & IR Controller Board Design project. My proficiency in utilizing PCB design tools such as Ki Cad, Gerber file, BOM, Altium, Eagle, and Or CAD will enable me to deliver quality work which adheres to industry standards.

@Webslinger01

Your P4/C6 split is the right call, but the HDMI 5V to 3.3V level shifting and CEC pull-up with the BAT54 diode are where most designs get sloppy. I've built similar dual-MCU boards with mixed-voltage interfaces before. → I'll nail the HDMI spec details — E-DDC level shifting, HPD divider, and TVS protection on every exposed line → Compact layout with proper RF keep-out for the C6 antenna and a clean SDIO interconnect → Full KiCad deliverables, Gerbers, and a BOM optimized for JLCPCB assembly I'll deliver this for $180, with schematics in 2 days. Let's talk specifics — message me and we'll get started.

@soniaer987

That ESP32-P4 plus C6 combo is a really neat architecture — I love the idea of a dedicated network co-processor. I've designed boards with dual-MCU setups before, and getting that SDIO/SPI interconnect right is where the magic happens. Here's what I bring to this: → I've done similar HDMI and IR controller designs, including proper CEC level-shifting and ESD protection → I'll deliver complete KiCad schematics, a compact PCB layout, and a JLCPCB-ready BOM → I can have the board ready for fabrication within 5 days, with full Gerbers and a 3D step file I can get this done for $140. Let's jump on a quick chat to nail down the exact pin assignments you have in mind.

@bojans9

Hello I understand you need a compact controller board that links an ESP32-P4 handling HDMI CEC and an ESP32-C6 for Wi‑Fi BLE, with reliable IR ports, USB‑C power and programming, and a clean BOM ready for JLCPCB. I will create full schematics, layout respecting RF zones, add the required level shifters, TVS protection, RMT driver circuits and auto‑reset UART bridge, then deliver Gerbers, pick‑and‑place files and a 3D step model. My PCB design background with Arduino and STM32 projects equips me to meet the tight footprint and signal integrity goals within your budget. Do you prefer SDIO or SPI for the P4‑C6 link Do you have a target board thickness in mind Will the HDMI connector be through‑hole or surface mount Looking forward to discuss next steps