Smartwatch PCB Design

Job ID: 39387740

Budget: ₹1,500 – ₹12,500 INR

I'm seeking a skilled PCB designer to create a custom smartwatch board tailored for health tracking. The design will utilize the ESP32-S3 chip and integrate a circular SPI touchscreen display, along with multiple health sensors.

Project Deliverables:

Complete schematic

PCB layout (circular, ~42–45 mm diameter)

2-layer PCB design (or advise if more is required)

Clean netlist and DRC-verified layout

Component placement optimized for wrist-wearable ergonomics

Gerber, drill, and position files for manufacturing

BOM (Bill of Materials) with Indian market availability preferred

Optional: 3D board rendering and assembly drawings

Hardware Specs:

MCU: ESP32-S3 (with native USB support)

Display: Circular touchscreen SPI display (~1.28"–1.4")

Charging: USB-C port + BQ24074 (LiPo charging and power path)

Battery: 3.7V LiPo (via JST or similar connector)

Flash: W25Q32 or W25Q64 (SPI)

RTC: DS3231 with onboard crystal and coin cell backup

Vibration motor: coin-style

MEMS Microphone: SPH0645 (I²S) or INMP441

Push button: single tactile input

Sensors:

MAX30102 (HRM/SpO2)

DS18B20 (body temp)

MPU6050 (IMU)

GSR sensor (analog or module input)

SHT31 (humidity/temp)

MAX44009 (ambient light)

Optional: BMP280 (barometric pressure), CCS811 (air quality/gas)

Requirements:

Experience designing wearable/wrist-mounted electronics

Must ensure EMI-safe sensor placements (e.g., HR sensor at bottom)

Help with connector/port selection for display, battery, USB-C

Prior experience with ESP32-S3 and sensor breakout integration is a bonus

Deliverables:
- Schematic and PCB layout files
- Bill of Materials (BOM)
- Assembly instructions