Raspberry Pi HAT for IR Transmission

@iamhamzazaki

Understanding the importance of seamless IR signal transmission and management, as well as the need for an efficient IR learning component, I am confident that my expertise in circuit design and electronics makes me the perfect fit for your project. My specialization in PCB design plus my proficiency with Python/Flask software ensures I can build a Raspberry Pi HAT that prioritizes high-density IR signal transmission with ease. With my skill set centred around hardware-software integration and embedded systems, I have developed a keen understanding of how to work within tight constraints, such as the GPIO limitations on Raspberry Pi, while still delivering effective solutions. Moreover, my experience in designing IoT ecosystems is an added advantage since it means I am well-versed in integrating different components seamlessly.

@macroenergy

With over a decade of experience in circuit design and electronics, I'm well-equipped to handle your Raspberry Pi HAT project. My proficiency in Analog Design ensures that your needs for power delivery, IR component routing, and visual feedback will be met with precision. In particular, I have extensive experience in designing low-power circuits and generating noiseless analog signals- an attribute essential for high-density IR signal transmission. My expertise in Electronic Design further cements my suitability for this project; I have designed RF transmitters and receivers as well as Bluetooth readers and transmitters - all skills highly relevant to this project. Moreover, my skills in PCB design (schematic design and physical layout) can be leveraged to create a foolproof HAT design guaranteeing no faulty pins or limited functionalities. Lastly, my experience with embedded systems (esp32/8266/arduino) which includes bluetooth & Wi-Fi and familiarity with connectivity protocols will be vital in ensuring successful integration between the Raspberry pi board and the HAT. Having executed similar projects notably the implementation of motor drives and AC/DC converters, In a clutch moment like this where precision and compatibility is indispensable, hiring me would not only be a decision you won't regret but also one that significantly increases the possibility of achieving your project vision successfully.

@amelectronics

Hi, I can easily handle this Raspberry Pi HAT design. I have experience with Raspberry Pi, GPIO control, power circuits, transistor/MOSFET drivers and PCB design using KiCad/Altium. I can design the USB-C power and Pi back-power section, IR receiver input, 20 independent IR output channels with suitable drivers, and the 20 visible activity LEDs while keeping the HAT compact and properly routed. I can provide the complete schematic, PCB layout, Gerbers, BOM, Pick & Place and manufacturing-ready files. Please share the Raspberry Pi HAT dimensions/connector requirements and I can get started.

@cpp2048

It's pretty straightfoward design requirement. Will use KiCad and prepare the design with all 3D models just in case you want to build a custom enclosure for the it.

@markoa7

As an experienced electronic hardware and firmware engineer, I believe my skills make me an excellent fit for your Raspberry Pi HAT project. I have a strong background in PCB design and development, including power supply circuits and multilayer designs. This expertise will prove beneficial in creating your custom Raspberry Pi HAT, ensuring its circuitry is designed efficiently, and the GPIO functions are fully supported. Additionally, my knowledge of designing LED driver circuits aligns perfectly with the need for individual channel drivers on this project. Furthermore, I have extensive experience developing firmware for various microcontrollers and implementing communication protocols essential for your Python/Flask software. Being proficient in implementing wireless technologies including Wi-Fi and Bluetooth will also allow me to integrate any future wireless functionalities that you may require. My RF design and analysis competencies will come into play to ensure optimal signal transmission and accurate IR learning capacities. Overall, I am committed to delivering high-quality solutions within deadlines without compromising performance. Your project uniquely combines multiple aspects of my expertise and I am excited to put my skills to work for you. Let's connect and discuss how we can transform your ideas into a reality together!

@tshibsamuel477

Hi there, I have carefully reviewed your Raspberry Pi IR HAT requirements and can design the complete board, including USB-C power input, IR learning receiver, 20 independent IR transmitter channels, MOSFET drivers, status LEDs, and the required Raspberry Pi GPIO interfacing. With nearly five years of experience in mechatronics, embedded electronics, PCB design, power management, and IR communication, I can create a compact production-ready HAT with clean schematic capture, PCB layout, BOM, Gerbers, and assembly files. I will also verify the safest power-delivery method for Raspberry Pi 3B/4B compatibility before finalizing the design. Please send me a message so we can discuss the board dimensions, emitter specifications, and preferred PCB software. Best regards, Samuel tshibangu

@ahsanfreelancer7

Hi, Hope you are well. It sounds like a great job and aligns with where I'd like to take my career. I'm eager to learn more. I have experience over the past fifteen years as a PCB Design Engineer at Global Engineering services and RWR Private Ltd. You can visit my freelancer profile page; https://www.freelancer.com/u/ahsanfreelancer7 I’ve been consistently committed to Specific goals, skills or traits the new job entails. Could we schedule some time to discuss about opportunity in more detail? I’d welcome the opportunity to learn more about the role and share how my skills and experiences would benefit you. I’m available to talk at any time. I look forward to speaking with you. Best, AHSAN ULLAH

@Adeel2k14

With extensive experience in custom Pi HAT architectures, power delivery, and high-density PCB layouts, I will deliver a production-ready IR bridge matching your exact specs. Key Technical Solutions: - Power Delivery: Safe back-powering to Pi 3B/4B via PoE header pins from a dedicated USB-C input on the HAT. - IR Array: 20 direct GPIO-controlled channels with discrete MOSFET drivers for high-current IR blasters, plus 1x 38kHz IR learning input. - Status Feedback: Top-side visible indicator LEDs mapped directly per channel to reflect active signal delivery. You'll receive schematics, Gerber, BOM, Pick-and-Place, and source files. Ready to discuss!

@leonidye

Hi, I have strong experience designing Raspberry Pi HATs, embedded interfaces, transistor/MOSFET drivers, and production-ready PCBs, and this project is a good match for my background. I can develop the HAT around the Raspberry Pi 3B/4B requirements, including the USB-C power input and controlled back-powering through the specified header pins. I’ll implement the 38 kHz IR learning receiver, 20 independent IR output channels with properly sized MOSFET/transistor drivers, and 20 edge-mounted 3.5 mm TS connectors. I’ll pay particular attention to IR emitter current requirements, GPIO loading, power distribution, thermal margins, grounding, and connector/LED placement. The 20 visual indicators will be positioned on the top side as requested and designed to provide clear activity indication during transmission. Deliverables will include the complete schematic, PCB layout, BOM with suitable part numbers, Gerbers/NC drill, and manufacturing-ready project files. I can also review the supplied HAT schematic first and identify any electrical or layout improvements before finalizing the design. I’m available to start immediately and can work through the design in clear milestones from schematic review → PCB layout → DRC/manufacturing release. Regards.

@osamaelkomy

Hi , I reviewed your detailed specifications for the custom 20-channel high-density IR Raspberry Pi HAT, and this is a clean, well-scoped hardware project that I can design and deliver with full DFM (Design for Manufacturability) compliance for seamless fabrication. Deliverables You Will Receive: - Complete PCB Design Files - Manufacturing Gerber Files (RS-274X, drill files, netlists) - Automated Assembly Files: BOM (with LCSC/DigiKey part numbers) & Centroid/Pick-and-Place (CPL) files for fast ordering via JLCPCB, PCBWay, or generic assemblers - 3D STEP File for enclosure/clearance validation Estimated Turnaround: 5–7 Days I am ready to start immediately. Feel free to send a message so we can finalize the GPIO allocation list and kick off the schematic design! Best regards

@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

@hayteekeys

HI, KINDLY READ THROUGH MY PROPOSAL I will design a clean, production-ready Raspberry Pi HAT (compatible with 3B and 4B) that acts as a high-density IR bridge with 20 independent transmission channels, one learning receiver, and proper USB-C power delivery that also back-powers the Pi. MY APPROACH ✅ Phase 1: Create the schematic with USB-C input powering both the HAT and the Pi via the 4 PoE header pins, plus the IR receiver on a dedicated GPIO. ✅ Phase 2: Layout the board with 20 independent transistor/MOSFET-driven 3.5 mm mono jacks, series/parallel indicator LEDs that light only when an emitter is connected and active, and all LEDs placed on the top side for clear visibility. ✅ Phase 3: Generate complete fabrication files, BOM, and assembly notes ready for production. DELIVERABLES - Complete schematic and PCB layout (KiCad or Altium) - Gerber, drill, pick-and-place files - Updated BOM - Brief design notes covering power, IR channels and LED behavior QUESTIONS 1. Preferred PCB design tool (KiCad or Altium) and target board size constraints? 2. Do you already have a preferred IR receiver part number and transistor/MOSFET preference? 3. Any specific current rating or LED color requirements for the indicator channels? Ready to start immediately. I can deliver the schematic and initial placement for your review within a few days

@yaroslavmark

Hi, I reviewed your provided IR receiver, IR emitter driver, and Raspberry Pi HAT power schematics. I am a Senior Embedded Hardware Engineer with 10+ years of experience in PCB and embedded system design, including Raspberry Pi-based controllers, multi-channel MOSFET driver boards, USB-C power systems, and production PCB development. I have designed 50+ custom hardware platforms covering power management, signal conditioning, communication interfaces, and industrial embedded applications. Approach: ✅ I will review and optimize the existing schematic for the TSOP38238 IR receiver, 20-channel MOSFET IR drivers, and indicator LED circuits. ✅ I will improve the USB-C 5V power input, protection, filtering, and Raspberry Pi back-powering design for reliable operation. ✅ I will create the Raspberry Pi HAT PCB layout with proper GPIO routing, connector placement, grounding, and manufacturability in mind. ✅ I will provide complete design files including schematic, PCB, BOM, and Gerber files. Questions: ✅What is the expected current rating of each external IR emitter, and should all 20 channels operate simultaneously during transmission? ✅Are the connected IR emitters fixed commercial modules, or should the output stage support different emitter loads? ✅Do you already have the final Raspberry Pi HAT mechanical outline and mounting constraints? Best, Yaroslav

@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

@sakshis576

With a multifaceted background in not just circuit design and electronics but also as a highly skilled 3D designer, I offer a unique blend of expertise for your Raspberry Pi HAT project. I have sponsored several similar projects in the past, including one just like yours for high-density signal transmission. My designs have always leveraged ingenious features to deliver efficient performance, and this HAT is no different. Drawing from years of experience, I assure you of an innovative design that meets all your specifications while taking into account the constraints of GPIO pin counts and channel control. Moreover, my understanding of LED circuitry placement will ensure that the indicator LEDs are correctly positioned so you never miss important visual feedback.

@alluankit01

Hi, I can design your custom Raspberry Pi HAT for high-density IR transmission and learning, compatible with Raspberry Pi 3B/4B, including USB-C power input, IR receiver input, 20 independent IR output channels, driver circuitry, and visible activity LEDs. The best solution is to first review the Raspberry Pi GPIO pin mapping, PoE-header back-powering requirements, IR emitter current needs, 3.5mm jack footprint, board edge constraints, and LED visibility placement. Then I’ll design the schematic and PCB with proper transistor/MOSFET drivers, current limiting, power protection, clean routing, and production-ready fabrication files. I’m comfortable with Raspberry Pi HAT design, GPIO-based control circuits, IR receiver/transmitter electronics, MOSFET/transistor driver stages, USB-C power input, LED indication circuits, connector placement, KiCad/Altium PCB layout, BOM preparation, Gerber generation, and assembly documentation. Deliverables will include: * Complete schematic * Raspberry Pi HAT PCB layout * USB-C power input design * PoE-header back-power routing review * 1 IR receiver input * 20 independent IR output channels * 3.5mm jack placement * Driver circuits per channel * Visible LED indicators * BOM with suitable parts * Gerbers and fabrication files * Assembly notes I’ll focus on a compact, reliable, and easy-to-assemble HAT design with clear channel routing, visible indicators, and proper current handling for standard commercial IR emitters. Best regards Ankit

@miguelcen64

Hello, I reviewed your project regarding **Raspberry Pi HAT for IR Transmission**, and I understand that you need a custom HAT that powers the Pi, learns IR codes, and drives 20 independent IR output channels reliably. I have over three years of experience with **Electronics and Circuit Design** and have worked on similar projects involving **Raspberry Pi HATs, transistor/MOSFET driver stages, and Python/Flask control software**. I can provide a reliable, maintainable, and professional solution tailored to your requirements. For this project, I will: • Review the requirements and current setup • Implement the 20-channel IR transmission hardware with onboard learning support • Test the solution thoroughly • Provide clear progress updates • Deliver clean, documented, and maintainable work • Support you with any related issues after delivery I am available to begin immediately and can complete the work within **21 days**. Please share any existing files, references, or additional requirements so I can confirm the best implementation approach. Best regards, Miguel

@shenglin0617

Hello, This is a project I can handle from the hardware architecture through production-ready PCB files. I have experience designing embedded boards with Raspberry Pi/ESP32-class controllers, GPIO interfaces, transistor/MOSFET drivers, power distribution and compact multi-channel layouts. For this HAT, I can develop a clean GPIO map for the 1× IR learning input and 20× independent IR outputs, design the individual emitter driver stages, and ensure the power distribution can reliably handle multiple active channels. I will also pay particular attention to the USB-C power/back-power path, GPIO protection, IR receiver filtering, and the 20-channel LED indication requirement. I primarily use Altium Designer and can provide the complete schematic, PCB layout, BOM, Gerbers, Pick & Place files and manufacturing-ready documentation. I can also optimize component selection around LCSC/JLCPCB where appropriate. The mechanical constraints are also clear to me: edge-mounted 3.5 mm jacks, top-side visibility of all 20 indicators, Raspberry Pi header alignment, and a compact HAT form factor. I can start immediately and would first establish the GPIO/power architecture before proceeding with the detailed layout. Best regards, ShengLin Gu.

@Webslinger01

Twenty channels of IR, one USB-C back-power path, and no expander IC — you've specced this properly, and I know exactly how to build it. I've done HAT designs with high channel counts and power routing before, and I can get this right the first time. Here's what I bring to this: → Custom HAT design experience with transistor arrays and audio-jack edge mounting → I'll handle the complete design — schematic, layout, and firmware for your Python/Flask control → The PoE header back-powering is a detail most designers miss; I'll make sure it's solid → Design and prototype files delivered, with a clear budget around $280 I'd like to discuss your project requirements further — I'm ready to start once you are.