PCB Design

@Mahihassi

With my diverse skill set, my team and I are exceptionally equipped to handle your PCB design project. We have extensive experience in designing for automotive 12V systems while complying with ISO 7637-2 regulations. One notable example is our successful development of a PCB for a car infotainment system that had similar requirements such as load dump and cold crank resilience. We meticulously assessed the challenges of your particular project and devised suitable solutions, resulting in smooth system functionality even under extreme automotive conditions. In terms of EDA tools, I am well versed in utilizing Altium Designer, KiCad, Eagle, EasyEDA, and Target - instrumental in the consistent delivery of top-notch native files regardless of the tools you prefer. Timing is also pivotal in any project’s success. Our team understands that and with this knowledge we are confident of submitting the first draft within two weeks of your contract award. We are reasonable with our pricing and offer you quality deliverables as well as one round of revisions included for transparency. Reviewing your existing design choices, we see no fundamental flaws that jeopardize the project's sturdiness. However, we propose using a slightly more robust USB-C port as it enhances protection against condensation and vibration without compromising its function or performance.

@macroenergy

As an experienced Electrical Engineer with a strong background in Circuit Design and Power Electronics, I am confident in my ability to handle all aspects of your PCB Design project. I understand the unique challenges you face, such as the need for an energy-efficient board, automotive compatibility, and a waterproof USB-C port. Based on your specifications, I propose utilizing Altium for schematic capture and PCB layout, as it ensures efficient and high-quality designs - which aligns with my professional experience. Regarding pricing, I propose a reasonable sum for your project while ensuring the highest quality of work. A revision round is included as part of the package. Given my expertise in PCB design and deep knowledge of various CAD tools like Altium and EasyEDA and the fact that I have successfully delivered native files in these formats before, I'm confident to deliver excellent results within a reasonably short timeline. While reviewing your fixed specifications, I found they align comfortably with my skillset; thus, there's no need for any amendments. However, in line with my belief in open communication throughout the project lifecycle - if any concerns arise during the process - whether it be suggestions or amendments needed to optimize your design or improve user experience –

@mairajali11

As a highly skilled and passionate PCB designer with over 8 years of experience under my belt, I am confident that I can deliver precisely what you need, and more. I am well-versed in all major EDA tools including Eagle, Altium, KiCAD, and EasyEDA which means I can provide you the native files in your preferred format. Moreover, I have a solid understanding of automotive electronics having completed several 12V automotive projects in compliance with ISO 7637-2. One vivo example is my design of a circuit for a heavy-duty truck where the PCB needed to endure extreme vibration conditions. When it comes to pricing and timelines, rest assured you'll be getting the best bang for your buck without any compromise on quality or delivery time. For this comprehensive project, I assure you my package includes revision round and a first draft will be ready within a week keeping in mind your time constraints. In case something seems off or I spot an improvement that would optimize functionality while adhering to the key constraints you've outlined, I won't hesitate to engage you in those discussions. That said though, as an experienced professional, my main focus is always delivering exactly what the client wants even if it differs from my personal perspective. Hiring me is choosing precision, quality and commitment. Looking forward to hearing from you soon!

@edi45

Hi, i am embedded system engineer with 11 years of experience, according your question 1. I mainly use KiCAD, so i will deliver KiCAD project along with the necessary manufacturing file 2. I've done plenty of automotive board, like boat monitoring with 2 different/separate lead acid battery, transmission control and emulation 3. With this price i can over lifetime of revision if its my design flaw, but may be only 2 of additional features 4. First schematic and board layout, i can done it within a week 5. I think mostly power system, there is TI chip that consume less than 100uA and its DC DC which is better than linear regulator like 7805 which will convert most of it as a heat because the input is 12v. Perhaps may be the microcontroller, what's the parameter of using ATTiny that may be we can discuss Let me know if you are interested

@tshibsamuel477

Hi there, I carefully reviewed your automotive mirror-controller project, including the sub-100 µA sleep-current target, permanent 12 V battery connection, transient protection requirements, high-impedance door-lock sensing, dual DRV8871 motor stages, USB-C diagnostics, and the approximately 55 × 45 mm mechanical envelope. I am a mechatronics engineer with almost half a decade of experience in schematic capture, multilayer PCB design, embedded electronics, power supplies, hardware prototyping, and interfaces such as SPI and USB using Altium Designer. I am comfortable working from a detailed written specification and turning it into a complete manufacturing-ready hardware package rather than simply routing an existing schematic. My relevant hardware background allows me to review the architecture critically, pay close attention to protection, power consumption, grounding, thermal considerations, component selection, and DFM, and complete the design efficiently without first learning the core electronics involved. Please send me a message so we can discuss the project and start. Best regards, Samuel tshibangu

@RaspberryOculus

As a highly experienced and versatile systems architect, I've built a formidable repertoire in the domain of hardware integration which makes me your best bet for this project. With decades of experience working on demanding projects, I have navigated through intricate bottlenecks and delivered scalable systems in high-pressure security situations like military submarines, combat rovers, drones with anti-jamming & RF communication, and aircraft communication equipment. I'm positive my skills coupled with my vast knowledge extends to automotive work will be indispensable in executing this design outlined in your spec. In regard to the tools I employ for native file deliveries, I am well-versed in Altium Designer—a renowned software tool that not only facilitates precise PCB design but also streamlines the entire project completion process. Speaking of proficiency in 12V automotive work, you can rely on my solid experience with its multiple complexities. For example, I once worked on the development of an ultra low-power system to monitor battery health and standby drain of a hybrid car which demanded similar attention to detail and strict adherence to power constraints given the permanence of battery supply.

@shadabkhan92

Hi, I can handle the complete schematic capture and PCB layout for this automotive mirror controller, with KiCad native source files and manufacturing-ready outputs. I’ll design around the critical requirements first: <100uA sleep current, 12V automotive transients including ISO 7637-2 conditions, reverse-polarity/load-dump protection, high-impedance door-lock sensing, fail-safe input stages, controlled motor power switching, thermal/vibration considerations, and 105°C+ rated components. I’ll also pay particular attention to PCB creepage/clearance, grounding, transient protection, connector protection, USB-C isolation/sealing considerations, and keeping a single board failure from interfering with the vehicle’s locking circuit. I’ll deliver the complete KiCad schematic/PCB, Gerbers, NC drill, fab drawing, pick-and-place, BOM with MPNs and LCSC/Mouser references, plus STEP/3D output and one included revision round. For the fixed component list, I’ll review each part against the electrical, automotive, standby-current and thermal requirements rather than blindly implementing it. If I find a better or safer alternative, I’ll explain the reason before changing anything. EDA: KiCad Automotive experience: 12V automotive power, protection and low-power embedded PCB design First draft: [5 days] Price: [$350], including the revision round

@Specgi

I am interested in working on your small automotive control module project and can provide professional schematic capture and PCB layout services. I can translate your circuit requirements into a clear, well-organized schematic while paying close attention to component selection, signal flow, power distribution, protection, and automotive operating conditions. For the PCB layout, I will focus on reliable routing, proper grounding, power integrity, component placement, thermal considerations, and noise reduction. I can also account for automotive-specific requirements such as transient protection, connector placement, EMI/EMC considerations, and robust power and signal paths. The design will be prepared with manufacturability and future testing in mind. I am committed to delivering accurate, production-ready design files within the agreed timeframe. I will maintain clear communication throughout the project, incorporate your feedback, and perform design checks to identify potential issues before fabrication. I would be happy to review your circuit requirements, component list, enclosure constraints, and preferred PCB specifications and turn them into a reliable automotive control module design.

@naminghn

Hi there, I'm looking at your request for PCB design for the automotive control module. Based on the constraints, I'll ensure the layout sustains under 100uA sleep current, meeting the ISO 7637-2 automotive standards. I'll utilize KiCad to deliver the schematic and layout, along with the required Gerbers and BOM. I have successfully worked on a similar automotive project involving low-power design, ensuring component selection aligns with your need for high reliability under various conditions. To answer your questions directly: 1. I can use KiCad for native files. 2. I’ve handled 12V automotive projects, including a battery monitoring system. 3. My price is $750, inclusive of one round of revisions. 4. I can provide the first draft within 14 days. 5. The fixed list aligns well but I may suggest alternative components for optimal thermal performance. I’m open to discussing any specifics in your design or any modifications that might improve the approach. Looking forward to your feedback. Regards, Ali

@Aaleen110

The critical constraint here is the sleep current under 100uA for a device running off the car battery, which immediately rules out most standard microcontrollers with internal regulators or active peripherals. I'd go with a low-power PIC microcontroller, specifically something like a PIC12F or PIC16F series that has a very deep sleep mode and minimal quiescent current, which is crucial for staying under your 30mA total parasitic budget. I will deliver a schematic and PCB layout using KiCad, also providing Gerbers, NC drill files, a fabrication drawing, pick-and-place data, and a BOM with manufacturer part numbers and LCSC/Mouser distributor references. The source files will be native KiCad, also a STEP file of the final board. The one thing left underspecified is the exact voltage tolerance of the door-lock wiring signal. I will assume a standard automotive 12V system with potential transient spikes, and design input protection accordingly. What is the expected range of signal levels and durations for the lock/unlock commands? I will have the schematic and initial PCB layout done within the first day or two. My 5.0 rating across 10 reviews on here, and Preferred Freelancer status, are factual.

@Ryan15222

Hi, I’m an electronics/embedded engineer experienced in PCB design, microcontrollers, power management, motor drivers, sensor/input protection, and production-ready hardware development. I can take your written specification and develop the complete schematic and PCB layout while challenging any design decisions that could create reliability or automotive-compliance issues. **1. EDA tool I can deliver native KiCad source files, including schematic, PCB layout, libraries, fabrication outputs, and 3D STEP/model data. **2. Automotive experience I have experience designing embedded electronics for vehicle/12–48 V environments, including DC power protection, reverse-polarity protection, transient handling, MCU-controlled loads, motor drivers, and low-power systems. For this design, I would specifically review ISO 7637-2/load-dump protection, cold-crank behavior, input protection, grounding, and EMC-sensitive routing. **3. Initial technical review I would not blindly implement the fixed component list. In particular, I would verify the selected LDO's real automotive transient/load-dump capability and <100 µA sleep budget, the P-FET reverse-polarity arrangement, input-stage fault behavior, DRV8871 standby/current behavior, USB/CH340N isolation from the permanent battery domain, and thermal/derating requirements for the 70°C+ door environment. I’m available to start immediately and can review your detailed specification before the schematic is finalized. Best regards,