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I need an experienced PCB designer for a compact wearable biomedical sensing device intended for chest-mounted physiological monitoring. The board should be based on: * ESP32 / ESP32-S3 microcontroller * ADS1292R ECG analog front end * ADXL355 low-noise accelerometer for SCG sensing * MAX86141 PPG sensor * Battery charging and power-management circuitry * USB-C interface for charging/programming The PCB should target an approximate size of 45 mm × 35 mm while maintaining good signal integrity and manufacturability. Requirements: * 4-layer PCB stack-up * Proper analog and digital partitioning * Low-noise routing for ECG and PPG signals * Clean grounding strategy (AGND/DGND handling) * Proper decoupling capacitor placement * Careful power routing and return-current handling * Compact wearable-style layout * EMI/noise-aware design practices Preferred Software: * KiCad or Altium Designer Deliverables Required: * Complete PCB layout * Gerber files * Drill/fabrication files * Pick-and-place files * Annotated BOM * DRC/ERC reports with zero critical issues * Source design files Experience with biomedical, wearable, or other low-noise analog boards will be strongly preferred. Please share: * Previous PCB projects/screenshots * Relevant analog or biomedical board experience * Estimated timeline * Fixed-price quote I am looking for someone who understands practical mixed-signal PCB design and signal-integrity considerations, not just basic routing.
Project ID: 40438192
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19 freelancers are bidding on average ₹13,958 INR for this job

I understand the project requirements and have experience designing compact mixed-signal PCBs with careful attention to signal integrity, low-noise routing, and manufacturability. I can help you develop this wearable biomedical sensing device based on ESP32/ESP32-S3, ADS1292R, ADXL355, and MAX86141 while maintaining proper analog and digital separation on a 4-layer stack-up. I have more than 8 years of experience in PCB design and firmware development, including low-noise analog, sensor-interfacing, and wearable-style compact PCB layouts. I am familiar with critical design practices such as AGND/DGND handling, ECG/PPG signal routing, decoupling optimization, return-current management, EMI-aware layout techniques, and power integrity considerations required for biomedical applications. I can provide: • Complete schematic and PCB layout • Gerber, drill, fabrication, and pick-and-place files • Annotated BOM • DRC/ERC reports with zero critical issues • Source design files in KiCad or Altium I can also share screenshots and samples of my previous PCB projects for your reference. My focus is always on developing reliable, manufacturable, and low-noise hardware rather than only completing the routing. Looking forward to hearing from you. Regards, Muhammad Adeel
₹6,000 INR in 7 days
6.6
6.6

As an experienced and versatile electrical engineer with a solid background in circuit design and embedded systems, I would be thrilled to bring my expertise to your biomedical wearable project. My team and I have a proven track record in designing custom IoT hardware, which includes successful PCB designs utilizing ESP32 and STM32 microcontrollers, much like what your project demands. One of our recent accomplishments was building sensor networks employing MQTT connectivity, providing me with the firsthand experience needed for laying out the intricate but critical network of sensors within your biomedical device. Moreover, we're well versed in managing power effectively, handling grounding strategies meticulously (AGND/DGND) to maintain correct signal paths, and might I add, excelling at compact implementations without compromising on signal integrity. Despite having a wide-ranging skill set, what sets us apart is our agentic AI focus that complements the practical mixed-signal PCB design you're seeking. Our work stands on the foundation of deploying predictive machine learning models with real-time decision making capabilities, just like what your monitoring device would require. This unique perspective helps offer innovative yet pragmatic signal-integrity focused solutions to ensure high-quality output despite potential EMI/noise challenges.
₹26,000 INR in 7 days
4.3
4.3

Are you looking for an experienced PCB designer to design ESP32 based compact wearable biomedical sensing device intended for chest-mounted physiological monitoring. Hi, I am Zain. I can easily handle the task including • Embedded Systems • Circuit Design • Biomedical Engineering / EMG Signal processing • PCB Design • KiCAD / Altium • Mixed Signal PCB Designs / High Frequency PCB Designs • Firmware Development • C / C++ • Simulations etc. Lets chat. Best regards
₹15,000 INR in 14 days
4.0
4.0

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
₹7,700 INR in 7 days
4.7
4.7

Hi, You can check my portfolio for previous ESP32/ESP32-S3 based hardware projects. I have solid hands-on experience with ESP devices, compact multilayer PCB design, sensor integration, and low-noise mixed-signal layouts. I can design the complete 4-layer wearable biomedical PCB around the ADS1292R, ADXL355, and MAX86141 with proper analog/digital partitioning, grounding strategy, clean ECG/PPG routing, power management, and EMI-aware layout practices. Deliverables will include production-ready PCB files, Gerbers, BOM, pick-and-place data, and full source files in KiCad or Altium. Best regards, Ahmed
₹6,000 INR in 7 days
3.9
3.9

Hello, I am Santosh Chaulagain, a professional Electrical Engineer and PCB Designer with over 8 years of experience in schematic design, PCB layout, and embedded systems, including ESP32, IoT devices, analog and digital circuits. I have successfully completed multiple projects for clients worldwide, delivering reliable and manufacturable designs. I have carefully reviewed your project requirements and I am confident that I can provide a high-quality solution tailored to your needs. My expertise includes PCB design using industry standards, component selection, BOM preparation, Gerber generation, and design optimization for cost and performance. I always ensure that my designs are fabrication-ready and tested for reliability. I focus on clear communication, timely delivery, and customer satisfaction. I am happy to discuss your project in detail and provide revisions until the final result meets your expectations. Looking forward to working with you. Best regards, Santosh C. Electrical Engineer | PCB Designer | ESP32 & IoT Specialist
₹6,000 INR in 7 days
3.4
3.4

Hello, I can help you with the Biomedical Embedded PCB Layout project including schematic review, PCB layout, firmware support, debugging, and production-ready files. My expertise includes embedded systems, PCB design, medical/IoT electronics, sensor interfacing, Raspberry Pi, ESP32, STM32, and firmware development. I have worked on similar embedded hardware projects before involving compact multi-layer PCB design and hardware testing. One relevant project I previously completed was a Cold Storage Monitoring System with embedded control, sensor integration, and custom PCB development. I have my own lab setup for hardware testing and validation, and I can also ship the fully tested project after completion. Estimated timeline: 02 days. Best regards
₹6,000 INR in 2 days
3.2
3.2

Hi, I can design the compact 4 layer PCB layout for your wearable biomedical sensing device with proper mixed signal routing, low noise analog handling, and manufacturable files. I have experience with ESP32 based boards, biomedical sensor layouts, ECG front end routing, PPG sensor placement, accelerometer interfaces, battery charging, USB C, power management, KiCad, Altium, DRC cleanup, Gerbers, pick and place files, BOM preparation, and fabrication outputs. I understand this board needs careful analog and digital separation, clean grounding, short ECG and PPG signal paths, proper decoupling, controlled return currents, and EMI aware layout practices. I can work from your schematic, review key component placement first, then complete the layout, run DRC and ERC, and deliver source files, Gerbers, drill files, annotated BOM, pick and place, and reports. Estimated timeline is 5 to 7 days after reviewing the schematic and mechanical constraints. Best regards Ankit
₹6,000 INR in 7 days
2.3
2.3

Hi, I have experience designing compact mixed-signal PCBs for embedded and biomedical applications, including low-noise analog front-end circuits, ECG and PPG signal routing, and 4-layer stackups with proper analog-digital partitioning. I understand the critical requirements for a board like this: clean AGND and DGND separation, low-noise routing for ADS1292R ECG signals, careful return-current handling around the MAX86141 PPG sensor, proper decoupling for the ADXL355, and an EMI-aware layout within a compact 45x35mm wearable footprint. I work in KiCad and Altium Designer and can deliver a design that passes DRC and ERC with zero critical issues. What I will deliver: - 4-layer PCB layout with proper mixed-signal partitioning covering ESP32-S3, ADS1292R, ADXL355, MAX86141, battery charging, power management, and USB-C - Gerbers, drill and fabrication files, pick-and-place, and annotated BOM - DRC and ERC reports with zero critical issues - Full source design files Timeline 4-5 days. 8 Please share any additional mechanical or connector constraints so I can confirm the fixed-price quote. Thank you.
₹5,000 INR in 4 days
3.0
3.0

Hi, I can help you design the compact 4-layer biomedical wearable PCB for ECG, PPG, and SCG sensing with proper mixed-signal partitioning and low-noise routing practices. I have experience with ESP32-based embedded hardware, mixed-signal PCB layouts, biomedical sensing circuits, and compact wearable electronics. I can deliver a manufacturable PCB optimized for signal integrity, grounding strategy, EMI reduction, and power stability. > Proposed Approach: Mixed-Signal PCB Design * Proper analog/digital partitioning * AGND/DGND handling strategy * Controlled return-current routing Biomedical Signal Integrity * Low-noise ECG and PPG routing * Sensitive analog trace isolation * Proper decoupling capacitor placement Wearable PCB Optimization * Compact 4-layer stack-up * EMI-aware layout design * Battery and USB-C integration optimization > Scope: * 4-layer PCB layout * Signal integrity optimization * Power and grounding strategy * Manufacturing-ready design preparation * DRC/ERC verification > Deliverables: * PCB source files * Gerbers and fabrication files * Pick-and-place files * Annotated BOM * DRC/ERC reports * Complete layout package
₹6,000 INR in 15 days
2.0
2.0

Hello! I’m interested in this project. I have experience designing compact PCBs (down to 40×40 mm) and working with 4–6 layer mixed-signal boards involving sensitive analog front ends, wireless MCUs, power management, and USB interfaces. I use KiCad as my primary tool. For your wearable biomedical device, I can deliver: • 4-layer compact layout (~45×35 mm) optimized for manufacturability • Proper analog–digital partitioning, AGND/DGND strategy, and controlled return paths • Low-noise routing for ADS1292R ECG signals and MAX86141 PPG front end • Clean, vibration-safe routing for ADXL355 • Stable power distribution, decoupling strategy, and linear/SMPS noise isolation • Safe integration of ESP32/ESP32-S3, USB-C, battery charging, and protection circuits • EMI-aware placement, shielding consideration, guard traces, and filtering where needed • Wearable-style compact placement while keeping signal integrity intact Deliverables: Gerbers, fabrication/drill files, pick-and-place, annotated BOM, DRC/ERC-clean sources, and full project files. I’ve previously designed small form-factor boards, sensor modules, power-integrated mixed signal PCBs, and I’m comfortable with ultra-low-noise analog layout requirements.
₹6,000 INR in 7 days
1.2
1.2

I appreciate and understand the immense need for high-quality, low-noise analog board design in biomedical applications. My seven-plus years of experience combining hardware engineering and AI make me uniquely qualified for this project. As an embedded system designer well-versed in STM32, ESP32, nRF52840, AVR microcontrollers and skilled in working with KiCad and Altium PCB Design, I have a proven track record of designing and delivering complex four-layer PCBs to rigorous design-rule checks. My extensive experience with SPI, I2C, UART, CAN, BLE, LoRa, USB protocols which your project demands further strengthens my suitability. Importantly for the task at hand, my background includes RF & Analog expertise that highly aligns with the project's need: antenna design, matching networks and power management ICs being prime examples. Adhering to good grounding strategy and signal integrity analysis are second nature to me given my focus on impedance-controlled routing and multi-layer layout.
₹60,000 INR in 7 days
0.0
0.0

I'm Nabil Electronics Engineer. I have two years experience in PCB Design and medical devices maintenance Kindly message me to discuss more, and I'm ready to start
₹6,000 INR in 7 days
0.0
0.0

Hello, I am a senior hardware and PCB design engineer with strong experience in mixed-signal, low-noise, and power-sensitive PCB layouts using Altium Designer. I have worked on compact embedded systems involving analog front ends, sensor integration, ESP32-based designs, battery management, and EMI-aware multilayer layouts. For your biomedical wearable device, I can deliver a clean 4-layer PCB with proper AGND/DGND strategy, ECG/PPG low-noise routing, controlled return-current paths, optimized decoupling, and compact wearable-oriented placement within the 45 × 35 mm target. Deliverables will include source files, Gerbers, fabrication files, BOM, pick-and-place, and DRC/ERC-clean reports. Estimated timeline: 10–14 days Fixed quote: $700–$1000 depending on schematic readiness. Regards, Sanjay
₹60,000 INR in 7 days
0.0
0.0

Hi I would love to design your PCB for you but your choice of sensor (MAX86141 ) does not fit in a chest mounted device. You need an ECG sensor for this. If you are ok with the change then I can help you with the chest mounted HR sensor system. Or you can continue with the MAX86141 as a finger/ear lobe/ wrist mounted system. Regards Soumitra
₹15,000 INR in 7 days
0.0
0.0

Hello, Your project strongly aligns with our expertise in Embedded Systems, mixed-signal PCB design, wearable electronics, and biomedical sensing devices. We have experience developing compact low-noise hardware using ESP32-based systems, sensor integration, power management, and signal-sensitive PCB layouts. We can design a compact 4-layer PCB integrating ESP32/ESP32-S3, ADS1292R ECG front end, ADXL355 accelerometer, MAX86141 PPG sensor, USB-C charging/programming, and battery management circuitry while maintaining strong signal integrity and manufacturability. We understand the importance of: * Analog/digital partitioning * Low-noise ECG and PPG routing * AGND/DGND grounding strategy * Proper decoupling placement * Return-current handling * EMI/noise-aware layout practices * Compact wearable-style PCB optimization Our focus is not only PCB routing but also practical mixed-signal design for reliable sensing performance and stable operation. Deliverables include: * Complete PCB layout * Gerber and fabrication files * Drill and pick-and-place files * Annotated BOM * DRC/ERC reports * Source files in KiCad or Altium We would be happy to discuss timeline, fixed-price quotation, and share relevant project experience. Best Regards Krashak Innovative Solution Pvt. Ltd.
₹7,000 INR in 10 days
0.0
0.0

I can handle this 4-layer medical PCB. For a 45x35mm board, my focus will be on a clean AGND/DGND partitioning to keep the ESP32 noise away from the sensitive ECG and PPG signals. I’ll ensure the ADS1292R and ADXL355 have stable power planes for accurate sensing. I have experience with compact, high-density layouts like Mars Rover PCBs and graduated 1st out of 987 students. I’ll provide the full Gerber and BOM package ready for manufacturing.
₹4,000 INR in 7 days
0.0
0.0

Hello, I am an Industrial Automation Specialist with experience in PLC programming, HMI/SCADA systems, industrial communications, motion control, and troubleshooting for industrial environments. I carefully reviewed your project requirements and I am confident I can provide a reliable, efficient, and professional solution tailored to your needs. My approach focuses on fast problem-solving, clear communication, and delivering stable results that work correctly in real industrial conditions. I have experience working with: Siemens LOGO!, S7 and TIA Portal Allen-Bradley / Rockwell systems FactoryTalk View Industrial networking and Modbus/Ethernet communications Servo systems, VFDs, sensors and machine automation Embedded systems and industrial electronics I can start immediately and keep you updated throughout the project. My goal is not only to complete the task quickly, but also to ensure long-term reliability and easy maintenance. I would be glad to discuss the details and help you achieve the best possible result for your project. Best regards, Eduardo
₹7,500 INR in 7 days
0.0
0.0

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