Custom ESP32 Healthcare Monitoring PCB Design

@amelectronics

I am a skilled and reliable Embedded Systems Engineer with over 6 years of hands-on experience in Arduino, ESP32/ESP8266, and microcontroller-based development. I specialize in designing efficient, stable, and scalable embedded solutions, turning ideas into fully functional hardware-software systems. I have a strong background in electronics, sensors, communication protocols (UART, I2C, SPI, MQTT, WiFi, BLE), and real-time embedded systems. My development approach focuses on clean, well-structured, and well-documented firmware, ensuring long-term reliability and easy maintenance. I also provide thorough testing, debugging, and performance optimization, including power efficiency improvements where required. I am a detail-oriented engineer with strong problem-solving skills and extensive experience in hardware debugging and firmware optimization. Beyond technical expertise, I value clear communication, meeting deadlines, and maintaining high client satisfaction. I work closely with clients to fully understand project requirements and deliver high-quality results. Pricing is flexible and can be discussed based on project scope and complexity. I am open to both short-term and long-term projects. Let’s work together to build a professional, reliable, and efficient embedded system for your needs.

@tshibsamuel477

Hi there, I’ve carefully read your project description and I fully understand your goal: designing a clean, compact, and reliable ESP32-based PCB for a portable healthcare monitoring device with battery power, charging, display, sensors, and plug-in module headers. With my background in mechatronics and embedded electronics, I have solid experience in ESP32-based PCB design, battery-powered systems, sensor integration, TFT displays, charging and boost circuits, and creating practical layouts that are easy to assemble and integrate into enclosures. I can design the board with properly aligned female headers, stable power routing, short and clean SPI lines, clear labeling, and all the mechanical details needed for a professional result. I understand the importance of keeping the design portable, robust, and easy to use, especially with safe power distribution, decoupling, connector placement, and avoiding GPIO conflicts. I can deliver the full schematic, PCB layout, Gerbers, and BOM ready for manufacturing. Given my experience, I’m confident I can complete this efficiently and professionally. Just send me a message and we can get started right away. Best regards, Samuel Tshibangu

@Adeel2k14

Hi, I’m an Electrical Engineer with 7+ years of experience in PCB design and currently working as an Embedded Systems Design Engineer. I have designed compact, battery-powered devices using ESP32, power management, and sensor integration. I can design your 2-layer PCB with proper power routing (Li-ion, charging, boost), clean SPI/I2C layout, and well-spaced female headers for plug-and-play modules. I ensure stable 3.3V logic, good grounding, and DFM-ready design. You will get schematic, PCB layout, Gerbers, and BOM. Please check my portfolio for similar work. Timeline and cost can be discussed.

@Webslinger01

I have experience working on healthcare and IoT-based devices where I designed PCB systems integrating sensors like heart rate, temperature, and wireless modules for real-time monitoring and data transmission. I have handled complete designs from schematic to working prototype, ensuring stable power management and clean signal routing. For your project, I will first review all module pin requirements and design a clean schematic ensuring no GPIO conflicts and proper power distribution. Then I’ll create a compact, well-routed 2-layer PCB with proper grounding, short SPI traces, and correctly spaced female headers for easy plug-and-play use. I’ll also make sure the battery charging and boost circuit is stable and safe for long-term use. Deliverables will include: -Schematic - PCB layout - Gerber files - Complete BOM. I also have a full electronics lab with ESP32 and required components, so I can test the design before final delivery to ensure everything works reliably.

@soniaer987

Hi, I've worked with MAX30102 SpO2 and heart rate sensors before on health monitoring devices, and I've designed ESP32-based PCBs with battery power sections including TP4056 charging, boost converters, and proper decoupling — so your component list is familiar ground. I work in EasyEDA and KiCad and will design the 2-layer PCB with female headers at standard 2.54mm spacing for all modules, clean SPI trace routing for the ILI9341 display, common ground plane, decoupling capacitors near the ESP32 and sensors, JST battery connector, and USB port at board edge. Deliverables: schematic, PCB layout, Gerber files ready for fabrication, and full BOM. Please feel free to reach out and we can get started. Kiran

@HossamMamdouh96

Hello, I’m an Embedded Systems Engineer with a strong experience designing ESP32-based and battery-powered PCBs. I will design a clean, reliable, plug-and-play board with proper power integrity (TP4056 + MT3608), stable 3.3V operation, and optimized SPI/I2C routing for accurate sensor performance. Focus: - Robust power design (battery + charging + boost + regulation) - Clean TFT (ILI9341 + XPT2046) SPI layout - Proper header alignment (2.54mm) with strong mechanical support - Noise reduction for MAX30102 accuracy Deliverables: Schematic, PCB, Gerbers, BOM (production-ready) Best regards, Hossam Mamdouh Embedded Systems Engineer

@mukeshkanna08

Hello, I’m Mukeshkanna, an Embedded Hardware Engineer with 3 years of experience designing reliable, production-ready electronic systems for industrial, consumer, and IoT applications. I specialize in PCB design, embedded hardware development, mixed-signal circuits, power electronics, and high-speed digital design. Recent work includes: 1. ESP32 Development board for college students to learn HW Module (Sold almost 80 Number of Boards with good learning feedback) 2. STM32H7 high-speed controller board with SDRAM, SDRAM, QSPI, NOR Flash and eMMC 3. Hardware for 7-inch TFT touch(I2C) display(LTDC) interface systems used in Textile machinery 4. Industrial RS232, RS485 communication systems for instrumentation Devices 5. 4-20mA current monitoring boards for RTD and Sensor Interface to Industrial projects 6. Industrial RS485 communication system covering 2 km distance for datalogging and monitoring 7. ADC signal conditioning in ADS1115 (16-Bit), ADS1248 (24Bit) with RC filters and differential inputs 8. Custom power boards and MOSFET driver boards as isolated digital outputs 9. Stepper Motor driver control for paper Industry. Thanks and Regards, Mukeshkanna S

@Jenil01

Your project requires a clean, reliable 2-layer PCB integrating power management, sensors, and display interfaces, with strong focus on stability and modularity, exactly the kind of embedded system design I specialize in. Please take a look at my portfolio: https://www.freelancer.in/u/Jenil01 I am a Mechatronics Engineer with hands-on experience in ESP32-based systems, PCB design, and embedded electronics. I’ve worked on projects involving sensor integration, power regulation, and compact PCB layouts, ensuring stable performance and manufacturability. For your design, I will: • Create a robust schematic integrating ESP32, MAX30102, DS18B20, TFT display, and peripherals with correct GPIO mapping. • Design a compact 2-layer PCB with proper ground plane, decoupling, and clean SPI/I2C routing. • Implement a reliable power section (18650 + TP4056 + MT3608) with stable 5V/3.3V rails. • Provide well-aligned 2.54mm female headers with clear silkscreen labeling for plug-and-play modules. • Ensure DFM-friendly layout, short SPI traces, proper spacing, and accessible USB/JST connectors. Deliverables will include schematic, PCB layout, Gerbers, and BOM, all ready for fabrication and assembly. My focus is on stable operation, clean layout, and easy integration, ensuring your healthcare device works reliably in real-world use. I can start immediately and deliver a professional, production-ready PCB. Best regards, Jenil Dodiya (Mechatronics Engineer)

@drtaimoor

Hi, this is a perfect fit with my experience in ESP32-based IoT and healthcare device PCB design, and I can deliver a clean, reliable, and assembly-friendly board for your system. I’ve worked on similar designs involving battery-powered devices, sensor integration (I2C/SPI/1-Wire), TFT displays, and compact layouts, so I understand the importance of stability, power integrity, and ease of use. I will design a 2-layer compact PCB with proper power architecture (18650 + TP4056 + boost + 3.3V regulation), ensuring stable rails for ESP32 and peripherals. I’ll carefully handle SPI routing for TFT (short, clean traces), I2C lines, and DS18B20 pull-up, while avoiding GPIO conflicts. For usability, I’ll place female headers (2.54mm) with correct alignment, clear silkscreen labels, and strong mechanical support, making it truly plug-and-play. I’ll also include ground plane, decoupling capacitors, JST battery connector, accessible USB port, mounting holes, and proper spacing for enclosure compatibility. You’ll receive schematic, PCB layout, Gerbers, and BOM, all ready for fabrication. My focus is on a stable, professional, and easy-to-assemble design. Happy to start immediately and refine based on your enclosure or size constraints.

@ynabil634

Hello, I'm Nabil Electronics Engineer with experience in designing and repairing medical devices I would help you in your project: Electronic Design (Schematic) 1- Power section, battery management, and Protection 2- ESP32, I recommend using module not the dev board directly (it will give use move space and make our board more professional) 3- SPO2 Sensor interface 4- TFT Interface PCB Layout: 5- stable for medical devices and IEC 60601 Standard 6- care about EMC/EMI to make it works at any environment Manifesting Files: 7- Bill of material that is suitable for medical grade products 8- Gerber Files I will use EasyEDA Pro Version Kindly message me to discuss more best regards, Nabil

@OyebisiHakeeem

Hello there I have worked on ESP32-based boards with mixed sensor and display integration, and your setup is very clear especially the modular approach using female headers, which makes assembly and maintenance much easier. I will ensure correct pin mapping, solid grounding, proper decoupling around the ESP32 and MAX30102, and clean SPI routing for the TFT to avoid signal integrity issues. For execution, I will start with a clean schematic that validates all power domains and GPIO usage, then move into a compact layout with strong mechanical support for the female headers (2.54mm pitch, well aligned and labeled for plug-and-play use). The battery, charging, and USB interface will be positioned for easy enclosure access, and I’ll include a proper ground plane and trace sizing for stable operation. Before final delivery, I’ll run DRC/ERC checks and prepare production-ready Gerbers along with a clear BOM, ensuring the board is straightforward to assemble and reliable in real-world use. I can start right away and will provide clear communication throughout the process to make sure the board meets your expectations. Looking forward to delivering a clean, production-ready PCB for your project. Best regards, Amos

@iyervivek9132

Hi I have extensive experience in ESP32 system integration and low-noise PCB design. Your project is a perfect fit for my background, particularly in managing the delicate balance between switching power supplies (MT3608) and sensitive biopotential sensors like the MAX30102. My Technical Approach for Your Project: Signal Integrity: I will use a dedicated ground plane and localized decoupling capacitors to ensure the SpO2 readings are not affected by the ESP32’s Wi-Fi bursts or the boost converter's switching noise. Mechanical Fit: I will use precise footprints for the female headers to ensure the 30-pin ESP32 and the TFT shield align perfectly with standard 2.54mm pitch. Thermal Management: I’ll implement 20-mil+ trace widths for the power rails to ensure the 5V boost system stays cool and stable. Deliverables: Full Schematic & 2-Layer PCB Layout Production-ready Gerber & Drill files Organized BOM (with LCSC/DigiKey part numbers) 3D Render of the board for enclosure fitting Process: Block Diagram & Pinout: We confirm GPIO assignments to avoid conflicts. Schematic Review: I send the logic for your approval. Layout & Routing: Finalizing the board geometry. Delivery: Handover of all manufacturing files. I'm ready to start immediately. Do you have a specific target dimension (in mm) for the PCB, or should I optimize for the smallest possible footprint? Best regards,

@IharBel

Hello! I'm experienced PCB/Schematics Engineer with experience in microcontrollers baced devices (analog/digital signals, interfaces, sensors). KiCad project + Manufacturing files + BOM I would be glad to cooperate

@ganesanDG

I will deliver the best PCB design for your ESP32 healthcare monitoring project, ensuring optimal performance by prioritizing signal integrity and avoiding problems. I'll layout the board exactly according to your specified method and connections.

@sibisarge

Hi, I am a Hardware Design Engineer with 4+ years of experience in embedded hardware development across domains such as home automation and automotive electronics. I have successfully completed projects including Energy Meter, Building Management System, Surveillance Monitoring System, Water Level Meter, Vehicle Control Unit (VCU), Battery Management System (BMS), Electronic Parking Brake (EPB), and E-Fuse. I work with an experienced PCB Layout Engineer skilled in high-speed PCB design involving protocols such as MIPI, Ethernet, QSPI, LVDS, differential pair routing, as well as power and thermal considerations.

@muhammadabdul036

Hi, This ESP32 healthcare monitor aligns perfectly with my hardware design expertise. Since your GPIO mapping is already locked in, I can move straight into delivering a flawless, enclosure-ready 2-layer PCB. I design exclusively in Altium Designer, ensuring you receive premium, industry-standard source files. Here is how I will execute your requirements: Module Integration: I will design precise 2.54mm pitch footprints for your female headers so the ESP32, TFT display, and sensors seat perfectly. I will add clear silkscreen labels for plug-and-play assembly. Signal Integrity: SPI traces to the ILI9341 will be kept short, and I2C lines to the MAX30102 will be routed away from the power section to avoid noise. Power Architecture: I will dedicate careful routing to the TP4056/MT3608 section to ensure stable 5V/3.3V lines, alongside a solid bottom-layer ground plane and properly placed decoupling capacitors. Deliverables: Complete Altium schematic, fabrication-ready Gerbers, BOM, and a 3D STEP file so you can verify the mechanical fit before manufacturing. Quick question: Will the 18650 battery use a through-hole holder mounted directly on the PCB, or will it connect via the JST connector from off-board?

@prashants094

Hi, This is a well-defined and practical healthcare device, and I’d be glad to help you turn it into a clean, reliable PCB design. I specialize in compact, multi-module PCB designs using ESP32, with strong focus on power integrity, clean layout, and plug-and-play modularity—which aligns perfectly with your requirement of using female headers for easy assembly and replacement. For your design, I will: Create a robust schematic ensuring no GPIO conflicts and proper interfacing of all modules (MAX30102, DS18B20, TFT + Touch, buzzer, LED) Design a compact 2-layer PCB optimized for handheld use, with well-planned component placement and strong mechanical support for headers Implement a stable power system (18650 + TP4056 + boost converter) with proper routing, filtering, and protection Ensure clean SPI and I2C routing, short trace lengths, and proper grounding to avoid noise issues—especially important for sensor accuracy and display performance Add decoupling capacitors and a solid ground plane for overall system stability Provide clearly labeled headers (2.54mm spacing) for true plug-and-play usability Place USB port, JST battery connector, and mounting holes exactly as required for enclosure compatibility I’d be happy to discuss enclosure dimensions or optimize placement further if needed. Looking forward to working on this with you.