PCB Design Portfolio: 20+ Custom Boards

The Challenge

Multiple clients across industries required custom PCB designs — from compact wearables to complex multi-board measurement systems. Each project demanded unique solutions balancing size constraints, signal integrity, thermal management, and manufacturing cost.

Selected Designs

Communication PCB

A VOIP security system PCB using Raspberry Pi CM4, DA7212 codec for audio, and SIMcom7600 LTE module. Designed in KiCad on a 4-layer stack with tamper detection and optocoupler protection.

Boomerang Wearable

A wearable device simulating controlled current waveforms with STM32WB5 for BLE, IMU for motion tracking, and QSPI Flash. Built in Altium Designer on a 6-layer stack for EMI/EMC performance.

MCAM Magnetic Measurement

A three-PCB system for real-time magnetic field measurement featuring an Octavo OSD32 processor, rigid-flex sensor PCB for tight spaces, and USB-C data transfer. Designed with a combination of 4-layer and 2-layer stacks.

Capacitive Soil Sensor

IoT plant monitoring with Pico 2040 W and ESP32 variants, e-paper display, automated irrigation pump control, and cloud/app connectivity. Designed on 2-layer stacks for cost optimization.

Motor Control Modules

Compact 40x42mm modules with STM32F103, MP6500 stepper motor driver, displacement and temperature sensors, and CAN bus communication supporting up to 18 interconnected modules.

Environmental IoT Monitor

High-density sensor integration including temperature, humidity, air quality, CO2, microphone, and particle monitoring. ESP32 IoT connectivity via Wi-Fi, BLE, and cellular. USB-C power with battery backup.

Design Tools

• Altium Designer and Altium Circuit Studio
• KiCad
• 2-layer through 6-layer stack configurations
• Rigid, flex, and rigid-flex PCB technologies

Results

• 20+ custom PCB designs delivered across multiple industries
• Designs ranging from simple 2-layer to complex rigid-flex configurations
• Solutions spanning wearables, IoT, industrial instruments, and communication systems