I2C Bus 8-Way Expansion Board

The I2C Bus 8-Way Expansion Board is a powerful and efficient solution for expanding your DCC-EX model railway control system. Designed to seamlessly integrate with DCC-EX setups, this board allows you to connect and manage multiple I2C-compatible devices—such as sensors, servos, displays, and automation modules—through a single bus. It simplifies wiring, reduces complexity, and enhances the flexibility of your layout, making it an essential component for advanced railway automation.

Key Features

• 8 I2C Expansion Ports: Easily connect up to 8 additional I2C devices, such as OLED displays, sensors, servos, and relays, for expanded functionality.
• DCC-EX Compatible: Designed specifically for use with DCC-EX Command Stations, allowing seamless integration with your railway automation system.
• Simplified Wiring: Reduces cable clutter by enabling multiple devices to communicate over a single I2C bus, making installation easier and neater.
• Plug-and-Play Operation: Supports standard I2C addressing and works with popular DCC-EX Command Stations
• Power Management: Provides stable 3.3V and 5V power output for connected peripherals, ensuring reliable operation using the I2c bus.
• High-Speed Communication: Maintains fast and efficient data transfer between the DCC-EX Command Station and connected modules.
• Expandable & Scalable: Multiple expansion boards can be daisy-chained to support even larger and more complex railway layouts.

Applications in DCC-EX Model Railways

• Accessory Control: Manage lighting, signals, and animations through I2C-enabled relay boards or LED drivers.
• Turnout & Servo Management: Connect multiple servos modules for turnout control, eliminating the need for complex wiring.
• Dynamic Display Integration: Power OLED or LCD screens to show train schedules, automation status, or track occupancy.
• Sensor Expansion: Add occupancy detection, block signalling, or RFID-based automation for a smarter railway experience using I2c IO Modules.

Technical Specifications

• Number of Ports: 8 I2C expansion slots
• Voltage Input: 3.3V / 5V
• Bus Compatibility: Standard I2C protocol
• Connector Type: 4-pin I2C headers for easy plug-in connections
• Power Output: Regulated 3.3V / 5V supply for peripherals
• Communication Speed: Supports standard and fast I2C modes
• Dimensions: Compact and stackable design for easy installation

Why Choose the I2C Bus 8-Way Expansion Board?
This I2C Bus 8-Way Expansion Board is an essential upgrade for DCC-EX users looking to expand their model railway automation. By streamlining wiring and allowing easy integration of multiple peripherals, this board helps bring your layout to life with enhanced interactivity and smart automation. Whether you're adding sensors, displays, or servos, this expansion board provides a reliable and scalable solution for your model railway needs.

Upgrade your DCC-EX system today with the I2C Bus 8-Way Expansion Board and unlock the full potential of your model railway!

Please note this is an expansion board and not an I2c Multiplexer unit.