Custom ESP32 Healthcare Monitoring PCB Design

Project Title: ESP32-Based Smart Healthcare Monitoring Device PCB

I need a custom PCB design for a portable patient health monitoring system.

Main Controller:

* ESP32 Dev Module (30-pin)

Power System:

* 18650 Li-ion battery
* TP4056 charging module with protection
* MT3608 boost converter (output 5V)
* On/off power switch
* USB charging port (Type-C or Micro-USB)
* Proper power routing for stable 5V and 3.3V

Sensors:

* MAX30102 (Heart Rate + SpO2) using I2C

* SDA → GPIO21
* SCL → GPIO22
* DS18B20 Temperature Sensor

* DATA → GPIO4 with 4.7kΩ pull-up resistor

Display:

* 2.8” or 3.5” TFT Touch Display (ILI9341 + XPT2046)
* SPI pins:

* MOSI → GPIO23
* MISO → GPIO19
* SCK → GPIO18
* Control pins:

* TFT_CS → GPIO5
* TFT_DC → GPIO2
* TFT_RST → GPIO16
* TOUCH_CS → GPIO15
* TOUCH_IRQ → GPIO27

Outputs:

* Buzzer → GPIO25
* Status LED → GPIO26 (with resistor)

Additional Requirement:
I will be using female header pins for easy connection and replacement of modules.

Please design the PCB with properly spaced female headers for:

* ESP32 module
* MAX30102 sensor
* DS18B20 sensor
* TFT touch display

Ensure:

* Correct pin alignment and standard 2.54mm spacing
* Strong mechanical support for headers
* Clear labeling of each header on the PCB
* Easy plug-and-play connections without direct soldering to modules

Requirements:

* Compact PCB (portable/handheld size)
* 2-layer PCB design
* Proper power section (battery + charging + boost converter)
* Common ground plane
* Decoupling capacitors near ESP32 and sensors
* Clearly labeled connectors for all modules
* JST connector for battery
* USB port accessible from board edge
* Mounting holes for enclosure

Deliverables:

* Schematic diagram
* PCB layout
* Gerber files
* Bill of Materials (BOM)

Notes:

* All components use 3.3V logic
* Avoid GPIO conflicts
* Keep SPI traces short and clean
* Design should be reliable and easy to assemble

Goal:
A stable, clean, and professional PCB for a wireless smart healthcare monitoring device.