Hardware Engineer Needed – Smart Ring PCB/FPC Design (BLE Wearable)

@mairajali11

As a Preferred Freelancer, I am privileged to rank among the top 1% of skilled professionals in my field. For over 8 years, I have been adding value to clients' projects with my wealth of expertise in PCB design and embedded systems. The beauty of my skillset is its alignment with your requirements for this project: antenna design, circuit design, electrical engineering and more. Plus, my professional CAD housing design skills will be just right for your compact wearable device. I have a solid track record with high-quality layouts using tools like Eagle, Altium, KiCAD, and EasyEDA. Notably, as a certified EasyEDA designer, I am well-suited for this role as it requires ultra-compact electronics handling – something I'm accustomed to and excel at. Additionally, my past experience includes working on projects similar to yours. To this extent is my hands-on experience with BLE designs; even so close-knit as earbuds. In conclusion, partnering with me guarantees a seamless delivery of all the tasks outlined in the project description - from the schematic designs to the assembly documentation - without teething troubles and well within the time frame. Let's create a luxury smart wear ring that you can proudly call "made to perfection". I'm eager to connect virtually and give wings to your vision.

@markoa7

Drawing from my extensive experience in wearable electronics design, including compact PCB/FPC layout and BLE antenna design, I am confident that I am the ideal choice for your Smart Ring project. My portfolio boasts numerous successful designs for similar projects such as smart watches and medical wearables. My thorough understanding of diverse communication protocols, power management circuits, and multilayer designs equips me with the skills to meet your design constraints of ultra-compact electronics and low power consumption. I have a proven track record in developing efficient LED driver circuits, RF PCB layouts and in implementing wireless technologies including Bluetooth. These precisely fit into the core needs of your project which necessitate a compact design while maintaining peak performance for BLE connectivity. My skills also extend to ensuring cost-effective solutions without compromising quality; hence, your desired thickness of 3-3.5mm within a small layout would be done effortlessly. Finally, based on the outlook that this may become a long-term collaboration for future hardware revisions, my ability to create ''designs for manufacturing (DFM)'' should give you even more confidence in my capabilities as you wouldn’t have to worry about design transition into large-scale production. I look forward to discussing how together we can turn this concept into a luxury reality that has no compromises on its performance or timelines.

@engrusmanfaiz

I am an experienced hardware engineer specializing in ultra-compact wearable electronics and BLE devices. I can design a highly optimized PCB/FPC for your luxury smart ring within the 3–3.5 mm thickness constraint. I have strong experience with Nordic BLE SoCs, biometric sensors, and low-power embedded systems. The schematic will be carefully designed to integrate the nRF5340, MAX86174, IMU, temperature sensor, PMIC, and SPI Flash with efficient power management. I will create a compact semicircular layout optimized for the 5.5 mm width and ring geometry. Special focus will be placed on BLE antenna tuning and RF performance in such a small enclosure. I will also ensure low noise for accurate PPG biometric sensing. All manufacturing deliverables will be provided including Gerbers, BOM, pick-and-place, and assembly documentation. The design will follow strict DFM rules for reliable production. I have experience designing compact IoT and BLE hardware using Altium and KiCad. I would be glad to support turning this concept into a manufacturable wearable product.

@Adeel2k14

Hello, I’m an Electrical Engineer with 7+ years of experience in PCB and embedded system design, currently working as an Embedded System Design Engineer in a reputed firm. I have designed compact multilayer PCBs (up to 8 layers) including mixed-signal, high-speed, analog, and low-power designs. I can design the ultra-compact PCB/FPC for your smart ring, including nRF5340 BLE integration, antenna matching, biometric sensors, and efficient power management with nPM1304. I focus on low-power wearable hardware, tight layout constraints, and manufacturing-ready designs. You will receive schematics, optimized PCB/FPC layout, BOM, and complete manufacturing files ready for production. I’d be happy to collaborate on this project.

@AwaisChaudhry

Hello, I understand you are building a luxury smart ring with ultra-compact PCB/FPC, BLE, and biometric sensing. My approach is to deliver a complete, manufacturable solution that fits the 3-3.5 mm ring thickness, ~5.5 mm width, and ~26-30 mm semicircle length while meeting ultra-low power goals. I will design the electronic schematic and compact multi‑layer PCB/FPC to host the Nordic nRF5340, MAX86174 PPG sensor, ICM-42670 IMU, TMP119, nPM1304 PMIC, SPI flash, and a Li-Po cell. I will perform precise BLE antenna matching, power budgeting, EMI/ESD considerations, and thermal pacing for reliable wearability. Deliverables include Gerber files, BOM, pick-and-place files, assembly documentation, and thorough DFM guidance to ensure smooth manufacturing. The work plan is to iterate quickly with a tight feedback loop, validate RF and power in a wearable‑grade enclosure, and prepare for long‑term revisions. What are the target mass and thickness tolerances for the ring, and do you have a preferred battery chemistry/charging method? What are your expectations on active power budget and duty cycle for sensors and BLE during typical use? Any preferred contract manufacturers or packaging constraints for the flex‑rigid PCB? Are there any regulatory or medical device considerations that must be addressed early? Best regards,

@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.

@manusharma2992

Hello mate, When i seen the details "Smart Ring PCB/FPC Design" which you are searching. I am super exited to start it ASAP! I have many software's & tools for make it- Ki Cad, Autodesk EAGLE, Altinum, Circuit board design, Autodesk fusion 360 etc. Make 2d & 3d both I will share update within it in 1-2 Hours. Best regards, Manu R.

@Amidst

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!

@mykolalus

Hi, I recently designed a compact wearable electronics board using the nRF5340 with integrated sensors and ultra-low-power management where the main challenge was fitting multiple sensors, battery, and RF circuitry into a very constrained mechanical space while maintaining stable BLE connectivity. From your description, you need an ultra-compact PCB/FPC for a smart ring integrating the MAX86174, ICM-42670, and nPM1304 with strict size limits (≈5.5 mm width and semicircle layout). Key considerations will be ultra-dense routing, optimized power domains for long battery life, and careful BLE antenna matching within the ring geometry. My approach would be: 1. Define FPC stack-up and component placement for semicircular layout 2. Design schematic with optimized power and sensor interfaces 3. Implement controlled-impedance BLE antenna and matching network 4. Perform ultra-compact routing and ground management 5. Deliver full manufacturing package (Gerbers, BOM, PnP, assembly docs) Quick question: do you already have a **preferred antenna type (ceramic chip vs. flexible printed antenna)** for the ring form factor? Best regards Mykola

@mzdesmag

Hello sir, Did go through your job description and glad to share that I have enormous experience in working with Hardware Engineer Needed – Smart Ring PCB/FPC Design (BLE Wearable) I'm a seasoned programmer and Engineer with quality experience in Flutter, React, Node.JS, SpringBoot, Frontend and Backend Development, Python, Matlab, R studio, C, C++, C#, OpenCV, OpenGL, Tesseract OCR, google vision, Statistical programming/R progamming data analysis Computing for Data Analysis Time Series & Econometric, Machine learning, AI, Deep learning, Matlab and Mathematica, 3D modeling, CAD/CAM,AutoCAD, 2D, Architectural Engineering, SolidWorks, Unity 3D, PCB, Electronics, Arduino, Automation, Embedded and Firmware , IOT, Electrical/Mechanical Engineering I am a TOP Rated Freelancer, and you can check my reviews here as well: https://www.freelancer.com/u/mzdesmag. Looking forward to potentially working together on this project. Thanks and Best regards, Adekunle.

@TingWang250617

Hi, I'm very glad to have an opportunity to help you with PCB design. This job is very appealing to me because I have a lot of experience in PCB design of various kinds of the electronic devices. Especially, IoT devices I also have enough experience in high speed multi-layer routing and RF impedance control. I'm very familiar with Altium, Eagle and KiCAD. I have my own Altium license and Eagle license. So if you hire me, I can start work immidiately. Also, I have 5+ years experience in developing an FW for various MCU such as STM, PIC, Atemga, ESP etc. I'll provide you all design files and manufacturing files (part library, schematic, layout, BoM, pnp, ODB++, assembly document, gerber, DRC document, and 3d model) Also, I can support you for PCB manufacturing and PCBA from our local company(READA company) in Shenzhen, China if you want. We will provide high-quality in PCB manufacturing and PCBA, reliable part sourcing, functional test according to customer's specifications, and quick shipping. Also, I can help you to order PCBs from JLCPCB, PCBWay and SEEEDStudio if you want. I'm confident my skills and experience in PCB design make me a good candidate for your job. Looking forward to hearing from you soon. Kind Regards. Ting

@yaroslavmark

Hi, I’m a senior hardware engineer with 7+ years of experience in low-power IoT and wearable electronics. I have designed 60+ multilayer PCB/FPC boards, including Nordic BLE devices and several ultra-compact wearables under 5 mm thickness where RF tuning and battery efficiency were critical. Approach: ✅ I will design the schematic around nRF5340, nPM1304, and the sensors, focusing on ultra-low-power architecture, stable SPI communication, and optimized power domains for continuous biometric sensing. ✅ I will create a compact semicircle PCB/FPC layout (~5.5 mm width) with careful component placement, controlled impedance RF routing, and mechanical alignment with the ring curvature. ✅ I will design and tune the BLE antenna with a proper matching network and ground clearance to maintain RF performance inside a constrained wearable enclosure. ✅ I will deliver Gerber, BOM, PnP, stack-up, and assembly documentation with DFM checks for micro-battery integration and small-pitch components. Questions: ✅ I would like to confirm whether the ring housing will be metal or polymer, since this strongly affects BLE antenna placement and tuning. ✅ Could you share the expected Li-Po battery size and capacity so I can optimize power routing and charging design? ✅ Do you already have mechanical CAD for the ring curvature and internal cavity constraints? Best, Yaroslav

@electronicsdone

Best Smart Ring PCB/FPC Design Expert for BLE Wearables! ⭐⭐⭐⭐⭐ Dear Client, What is your current priority: proving the architecture fits reliably inside the 3–3.5 mm mechanical envelope, or moving directly toward schematic + layout for the first prototype? A smart ring is not a normal PCB task. In a form factor this tight, success depends on how well power, sensor placement, FPC/PCB stack strategy, battery constraints, BLE performance, and manufacturability are solved together from the beginning. That is where I can help. I can support the hardware development of your smart ring from architecture finalization through schematic design, ultra-compact PCB/FPC layout, power-conscious component integration, BLE antenna matching support, and manufacturing outputs. My focus would be to make the design not only compact, but also realistic for prototype bring-up and future revisions. Why I’m a strong fit: 1. Strong background in compact embedded hardware and low-power product design 2. Careful approach to space-constrained PCB layout and manufacturability 3. Focus on reducing design risk early, especially in power, routing, sensor integration, and handoff readiness What you will get: 1. Schematic design 2. PCB/FPC layout 3. BOM, Gerbers If you can share the ring mechanical concept, battery assumptions, and whether the PCB is expected to be rigid-flex or pure flex, I can assess the design direction properly. Best regards, Prat PCB Must Innovations

@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

@ahmedy607

Hello, I’m an embedded hardware designer with experience in **low-power IoT electronics, BLE systems, and compact PCB layouts**. I can help design the **ultra-compact PCB/FPC** for your smart ring while keeping power consumption, RF performance, and manufacturability in mind. For this project I can: • Design the full schematic around **Nordic nRF5340** with optimized power architecture • Integrate sensors including **MAX86174**, **ICM-42670**, and **TMP119** • Implement power management using **nPM1304** and optimize for **ultra-low power wearable operation** • Design a **compact semicircle PCB/FPC (~5.5 mm width)** suitable for a **3–3.5 mm ring thickness** • Implement proper **BLE antenna matching and RF layout** to ensure reliable connectivity Deliverables will include: • Complete schematic and PCB/FPC layout (using **Altium Designer** or **KiCad**) • Gerber, drill, pick-and-place files • BOM with manufacturer part numbers • Assembly documentation and **DFM recommendations** I have experience designing **ESP32/BLE IoT boards and compact multi-sensor devices**, and I’m happy to collaborate long-term for future hardware revisions. Best regards, Ahmed

@leonidye

Hi, I have extensive experience designing ultra-compact PCBs and FPCs for wearable devices, including Bluetooth Low Energy (BLE) applications. I can deliver the full design process, including schematic creation, PCB/FPC layout, BLE antenna matching, low-power optimization, and preparation of Gerber files, BOM, pick and place files, and assembly documentation. I have previously worked on similar compact designs, such as smart rings, medical wearables, and smartwatches, and can ensure your smart ring meets the strict design constraints and manufacturing requirements. Best regards. Leonid Y.

@manojachanta7172

This is exactly the type of wearable hardware I specialize in. I recently completed the PCB design for a smart ring prototype last month, so I’m very familiar with the constraints involved in fitting BLE, biometric sensing, and power management into a sub-6 mm wide curved layout. For ring devices, the key challenges are antenna efficiency in a tiny form factor, sensor placement for reliable PPG readings, and aggressive power optimization. I have experience integrating Nordic BLE SoCs with optical sensors and designing compact layouts that remain manufacturable. I can deliver: • Complete schematic design • Ultra-compact PCB/FPC layout for the semicircle ring geometry • BLE antenna matching and tuning preparation • Manufacturing files (Gerber, BOM, Pick & Place) • Assembly and DFM documentation My workflow focuses on stable RF performance, battery life, and production readiness, not just fitting components on a board. Since I’ve recently worked on a similar ring platform, I can move quickly and avoid many of the typical pitfalls in first-generation wearable designs. Happy to discuss the mechanical constraints and sensor placement to ensure reliable measurements. Best regards.

@ZainAbbas51862

Greetings Dear Hiring Manager I have read the description of your project and I understand everything. I am an expert in ultra-compact wearable electronics and FPC layout, with extensive experience in integrating Nordic nRF-series SoCs and high-precision biometric sensors into extremely constrained form factors like smart rings. I specialize in designing high-density semicircular flexible circuits that accommodate complex power management and BLE antenna tuning within a 5.5 mm width, ensuring that every design is optimized for low-power performance and seamless DFM-compliant manufacturing for luxury medical-grade wearables. I am waiting on chat to discuss more and I am willing to start it now. Best Regards, Zain Abbas

@BenJeremie

As a seasoned hardware engineer with over 8 years of experience, I am confident that I have the specialized skill set required for your compact wearable device project. My expertise in PCB design and layout aligns perfectly with the unique challenges of your smart ring concept. In fact, I have successfully executed several other BLE designs over the years—including smart rings, which makes me more attuned to the specific demands of this project. Moreover, my strong background in low-power embedded hardware systems gears me up perfectly for the task at hand. Not only can I translate your device's requirements into an electronic schematic, PCB/FPC layout, and BLE antenna matching network, but I can also generate all necessary manufacturing files such as Gerber archives, pick and place files, and assembly documentation—streamlining the process from ideation to production. Working with me means partnering with a dedicated professional who understands that every project is unique and thus requires tailored solutions. Together with my team of 30 experienced engineers, we can provide all-inclusive support from hardware and firmware to app, web, and AI development to meet any future hardware revisions you might require. Let's bring your luxurious smart ring wearable to life in a groundbreaking way.