Gravity I2C Address Changer

The DFRobot Gravity I2C Address Shifter DFR1193 is a useful module for avoiding address conflicts on the I2C bus. Many I2C devices have fixed addresses and therefore cannot be operated simultaneously. This module enables transparent address shifting, allowing two devices with identical addresses to be used simultaneously on one controller. It offers two separate I2C channels and supports bidirectional signal transmission without affecting communication. Thanks to compatible 3.3 V and 5 V logic and the Gravity interface, integration is particularly easy. With its compact design, the Address Shifter is ideal for smart home systems, IoT applications, and prototyping.

Recommended Accessories:

• Gravity Sensors, Modules, and Accessories
• Arduino or ESP32 Development Boards

Features:

• The module shifts I2C addresses and allows the simultaneous operation of identical devices.
• It features two separate channels with independent addressing.
• Communication is bidirectional and transparent.
• Compatible with 3.3 V and 5 V systems.
• The Gravity interface allows quick and easy connection.
• The compact design is suitable for prototyping and series applications.

Application Examples:

• Operation of two displays with fixed I2C addresses on the same controller.
• Integration of multiple identical sensors in smart home projects.
• Development of complex bus structures in IoT systems.
• Use in educational environments to demonstrate I2C concepts.

Documentation:

• DFRobot Wiki

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR1193
• Interface: I²C (Gravity-compatible)
• Logic Level: 3.3 V and 5 V compatible
• Operating Current: 2 mA at 3.3 V
• Supply Voltage: 3.3 – 5 V DC
• Mounting Hole: Ø3.0 mm
• Dimension: 42 × 32 × 7 mm
• Weight: 16 g

Package Contents:

• 1x Gravity I2C Address Shifter
• 1x PH2.0-4P Cable