Arduino SEQLOCK V1 PCB Design

@yaroslavmark

Hi, I can complete the SEQLOCK V1 PCB in EasyEDA and deliver a fully manufacturable JLCPCB-ready package including schematic, routed PCB, Gerbers, and source .json files. I have 10+ years of PCB and embedded hardware experience and completed many Arduino-based relay-control and automotive-interface boards with production-ready layouts and clean DRC validation. ✅ I will create the full EasyEDA schematic and PCB layout using your exact pin mapping, relay configuration, buck-converter supply path, and connector definitions while keeping the board within the 50×50 mm preferred size if routing density allows. ✅ I will optimize relay-current paths, grounding, fuse protection, decoupling placement, and transistor drive routing to ensure stable operation in automotive-style 12 V environments. ✅ I will deliver ERC/DRC-clean EasyEDA source files, Gerbers, drill outputs, and a BOM fully compatible with JLCPCB assembly workflows for your 20-board production run. ✅ Do you want the Arduino Nano mounted via female headers for replacement, or soldered directly to the PCB? ✅ Will the relay switch automotive inductive loads, and if so should additional transient protection be added on the 12 V input? ✅ Do you already have preferred enclosure dimensions or mounting-hole locations for the final board? Best, Yaroslav

@tetianam8

⭐⭐⭐⭐⭐ SEQLOCK V1 is a fairly straightforward mixed-signal control board, but it still needs careful layout around power switching (relay + buck converter) to avoid resets, noise on the Arduino Nano, and iButton signal instability. The main things I’ll focus on are clean 5V rail regulation from the MP1584, proper separation of relay coil current from logic ground, and correct flyback/decoupling placement so the Nano stays stable during switching. I can design this fully in EasyEDA and deliver a JLCPCB-ready project (JSON + Gerbers) with DRC clean output for immediate fabrication of your 20 units. What I’ll do: • Complete schematic capture from your net list • 50×50–50×70mm optimized PCB layout • Proper buck converter layout + filtering • Relay driver stage (BC547 + 1N4007 placement optimized) • Clean routing for iButton + button inputs • LED + resistor placement for clear assembly • JLCPCB BOM + assembly files Deliverables: • EasyEDA project (.json) • Gerbers + drill files • Pick & place + BOM • Fabrication-ready package (DRC 0 errors) A couple quick checks before I start: • Do you want screw terminals or direct pin header for J1? • Any enclosure constraints on connector side placement? Once confirmed, I can turn this around quickly for production.

@hancho6319

With over 5 years of experience as an Embedded Systems Engineer, I have developed a deep understanding of Arduino and other microcontroller platforms and have a proven track record of designing and building successful embedded solutions. I am very comfortable with circuit design, sensor integration, automation systems, and hardware debugging - all relevant skills for your project. I must mention my proficiency in simulation and PCB design tools like KiCad and especially EasyEDA pro, which you mentioned as the required software. Additionally, my background in Electrical & Electronics Engineering will prove advantageous in executing this project excellently. Being well versed in digital systems, power principles, etc., will ensure that I have a comprehensive understanding of the components listed and their interactions - minimizing errors during designing. Finally, I use my CAD & PCB design skills, honed by creating professional PCB layouts using various EDA tools including KiCad, to create optimal designs from hardware concepts into manufacturable products. Call it 'engineering mindset', if you please; whether it's an e-commerce system or an IoT solution like yours, I approach every project with creativity, precision to deliver high-quality results.

@uzairelectronics

Hi, Yes, I can do this project and prepare a production-ready EasyEDA design for JLCPCB manufacturing. Your requirements are clear, and I can create the schematic, PCB layout, component placement, and generate JLC-compatible Gerbers with DRC-clean outputs. I have experience with Arduino-based control boards, relay driver circuits, automotive power inputs, connectorized designs, and compact PCB layouts. I will pay special attention to relay current paths, buck converter placement, grounding strategy, fuse protection, and separation between switching and logic sections for reliability. Deliverables will include EasyEDA source files (.json), schematic, PCB files, Gerbers, BOM if required, and manufacturing-ready outputs for your 20-unit production batch. I can target the 50x50mm size first and expand only if routing or spacing requires it. For pricing, I would first like to confirm if the MP1584 module is a prebuilt module footprint or if you want the converter circuitry integrated directly on PCB. Best regards, Engr. Muhammad Uzair

@shuvadeep003

Hello, Yes, I can design the SEQLOCK V1 PCB in EasyEDA and deliver production-ready files fully compatible with JLCPCB. I have experience with: • Arduino Nano based control boards • Relay driver circuits with flyback protection • Automotive/power-input PCB layouts • Compact PCB routing with proper grounding • JLCPCB-ready Gerber generation and DRC validation What I will deliver: • EasyEDA project (.json) • Complete schematic • PCB layout • JLCPCB-compatible Gerber files • BOM and pick-and-place file if required • DRC-clean design (0 errors) • Proper relay trace sizing and power routing • Clearly labeled connectors and test points PCB details: • Size target: within 50x50mm preferred • Single or double layer based on routing quality • Optimized for stable 12V automotive operation • Decoupling and grounding handled carefully for Nano + relay stability I have reviewed: • Arduino pin mapping • Relay SRD-05VDC-SL-C pinout • BC547 relay driver stage • iButton pull-up requirements • Connector assignments Estimated price: • PCB design + deliverables: $60–$90 depending on revisions and assembly support required. Ready to start immediately. Best regards, Shuvadeep

@maksymk35

As an experienced Senior Software Developer, I bring a unique blend of skills and expertise that make me perfectly suited for your Arduino SEQLOCK V1 PCB Design project. My in-depth knowledge of microcontroller programming and firmware development allows me to excel in embedded systems, while my familiarity in PCB schematic and layout design ensures reliable hardware configuration. I have extensive experience with the software required, especially EasyEDA, and can provide you with the deliverables you need: the .json project files and JLCPCB-compatible Gerber designs without any DRC errors. Not only this, but I also boast competencies in various languages including C, C++, C#, NET and Python that peak on every corner of the project. A testament to my ability to troubleshoot complex projects, I have successfully converted dated systems into modern, operative solutions many times before. Combining this with my passion for innovative thinking and adaptive learning of emerging technologies gives me the edge to meet your expectations in turning high level specifications into a streamlined, precise project. With an eye for detail and a commitment to quality, let me optimize your designs into a compact 50x50mm package - an ideal gift to your 20 JLCPCB units! Consider hiring me for individual attitude-driven project management driven by precision, creativity, and technical mastery.

@enricos0

Hi there, Confident in delivering a clean, professional PCB design that meets all your expectations for the Arduino SEQLOCK V1 project. Your emphasis on seamless integration and automation aligns perfectly with my skills in PCB design and proficiency in EasyEDA. I specialize in creating user-friendly and efficient electronic layouts. With a commitment to speedy communication, fast turnaround times, and a dedication to client satisfaction, I am the right person for this project. I look forward to bringing your vision to life and establishing a long-term partnership. I am available for a quick chat! Regards, enricos0

@kvshivateja06

Hi, Confirmed — I can take this from schematic to JLCPCB-ready Gerbers in EasyEDA with zero DRC errors. SEQLOCK V1 is a well-defined design and the component list is straightforward: Arduino Nano, MP1584EN buck, SRD-05VDC relay driven through BC547, iButton interface with pull-up, three indicator LEDs, and a 10-pin harness connector. No ambiguities in the pin mapping or relay pinout. My approach: Schematic capture in EasyEDA with all connections verified against your pin map and relay pinout Flyback diode, base resistor, and decoupling capacitors placed and verified against datasheets Layout targeting 50×50 mm, double-layer — power traces sized for current, clean GND plane, component placement optimised for hand or automated assembly JLCPCB design rule check run to 0 errors before delivery Gerbers panelised for your 20-unit order if needed Deliverables: EasyEDA .json project file (schematic + PCB) JLCPCB-compatible Gerber + NC drill zip BOM formatted for JLCPCB SMT assembly if required One quick question before I start: should the fuse T3.15A be in-line on the 12 V input trace on the PCB itself, or is it external to the board via the harness? Ready to start immediately. What is your deadline?

@OmarEzzat404

I can do that for you for just 10$ in 4 days. Since this my first time here, try me and if you didn't like the work, you can as many edits as you need or keep your money (: you can also check my previous work if you want, just message me.

@almastsargsyan87

Hello, I can complete the SEQLOCK V1 PCB design in EasyEDA and provide fully manufacturable JLCPCB-compatible files. The project will include schematic capture, PCB layout, correct relay/transistor driving circuit, power section with MP1584EN buck converter, fuse protection, LEDs, iButton interface, and 10-pin connector routing as specified. Deliverables: * EasyEDA project (.json) * Gerber files * BOM and pick-and-place file if needed * DRC-clean design (0 errors) * PCB optimized within your requested size limits * Ready for 20-unit production at JLCPCB I have experience with Arduino Nano-based control boards and automotive-style low-voltage electronics. Estimated delivery: 2–3 days Price: $30 USD I can start immediately. Thank you!

@Kudumyashwanth

Dear Client, I can deliver the complete SEQLOCK V1 PCB as per your requirements. My Approach: I will design the PCB in EasyEDA (as requested). Double layer, optimized layout, 50x50mm or 50x70mm size. Proper placement of Arduino Nano, Buck converter, Relay, iButton connector, LEDs, etc. Correct connections as per your pin mapping. DRC clean, JLCPCB compatible Gerber files + Drill files + BOM. I will provide the full EasyEDA project file (.json) + Gerber files. Deliverables: EasyEDA project file Gerber files (ready for JLCPCB) BOM list with LCSC part numbers 3D render images for verification Schematic PDF I have good experience in Arduino-based PCB design, power circuits, relay driving, and connector layouts. I will make sure the design is clean, compact, and reliable. Price: $20 USD Delivery Time: 3 Days I can start immediately. Please let me know if you have any specific preferences (component placement, silk screen text, etc.). Looking forward to working with you. Best Regards, Kudum Yashwanth

@sandipm1307

As an Automation Engineer with a strong background in implementing industrial automation solutions, I am confident in my ability to deliver the Arduino SEQLOCK V1 PCB Design project to your satisfaction. My expertise in Arduino, Electronics, and Embedded Systems makes me the right choice for this job. I have hands-on experience in PCB design using EasyEDA, which is a key requirement for your project. In addition to my technical skills, I bring a practical and value-driven approach to my work. My understanding of site conditions, troubleshooting requirements, and client expectations ensures that I always deliver practical and cost-effective solutions. The unwavering focus on providing clean, reliable, and well-documented solutions is one of the reasons clients have consistently chosen me over the years. By selecting me for this project, you are not just gaining access to technical skills but also getting a professional partner dedicated to automating processes, reducing manual work, and improving system performance for you. Together we can create a high quality SEQLOCK V1 PCB design that's both efficient and robust. Don't hesitate, let's get started!

@claytond32

Hi, Yes, I can absolutely handle this PCB project in EasyEDA and deliver both the EasyEDA source files (.json) and JLCPCB-ready Gerbers with clean DRC results. Your specifications are very clear, which is great for keeping development fast and accurate. I can create the schematic, optimized PCB layout within the 50x50mm target if feasible, and prepare complete manufacturing outputs including BOM and pick-and-place data if needed. I’ve worked with Arduino-based control boards, relay drivers, power regulation, and compact automotive-style electronics before, so the relay protection, grounding, and routing requirements are straightforward for me. Once we start, I can also review the layout for thermal spacing, assembly efficiency, and any opportunities to simplify routing or improve reliability. Best regards, Clayton

@jaxtons4

Hello, I can design the complete SEQLOCK V1 PCB in EasyEDA and make it fully compatible with JLCPCB production requirements. The provided component list and pin mapping are detailed enough to begin schematic capture and PCB planning immediately. I’ll ensure: * Proper relay driver circuitry with flyback protection * Stable 5V power routing from the MP1584EN * Clean grounding and decoupling * Compact layout within your enclosure limits * DRC-clean Gerber output ready for manufacturing I can provide: • EasyEDA project files (.json) • Gerbers + drill files • BOM • Assembly-ready outputs if required I’d be happy to discuss estimated turnaround time and production recommendations for the 20-unit batch. Best regards, Jaxton

@finleym28

Hi there, This project is a very good fit for my PCB and embedded hardware experience. I can complete the full EasyEDA schematic and PCB layout for SEQLOCK V1 and prepare production-ready files for JLCPCB assembly/fabrication. I’m comfortable with: * Arduino Nano integration * Relay/transistor driver circuits * Automotive-style 12V to 5V power handling * Compact PCB optimization * DRC-safe manufacturing preparation I will also check connector orientation, trace sizing, fuse placement, and relay isolation to ensure the board is reliable and easy to assemble. Looking forward to working with you on this build. Best regards, Finley