OMC's H19 fiber-optic shield has been adapted as a stackable add-on for the Arduino Uno. It’s designed to simplify the integration of fiber-optic data links into microprocessor-based platforms.

1. Home Automation with Raspberry Pi + Arduino. Goal: Control lights and appliances using relays, sensors, and a web interface. Components Needed: Raspberry Pi 4. Arduino Uno. 4-channel relay module.