The PCA9548A TCA9548A I2C 8-Channel Multiple Extensions Development Board is a powerful and flexible I²C bus expansion module designed to help you interface multiple I²C devices — even if they share the same address — with a single microcontroller or processor. Based on the PCA9548A I²C multiplexer chip, this board enables seamless switching between up to 8 separate I²C channels through software control using standard I²C commands.
This module is ideal for complex sensor arrays, multi-device systems, robotics projects, and embedded applications where addressing conflicts or bus length issues may arise. It supports multiple masters and slaves, simplifies wiring, and helps you organize and scale your I²C network efficiently.
Note : Product may vary in two variants TCA9548A & PCA9548A
Available at Microspark Store – Your Trusted Electronic Component Store!
Key Features
- Multiplexer IC: PCA9548A
- Channels: 8 independent I²C channels
- Control via I²C commands
- Supports multiple devices with identical I²C addresses
- Works with Arduino, ESP32, Raspberry Pi, STM32, and other I²C masters
- Wide supply voltage compatibility (typically 3.3V / 5V)
- Onboard pull-ups and headers for easy connection
- Breadboard and PCB friendly footprint
Applications
- Expanding I²C device count in microcontroller projects
- Address conflict resolution (same-address sensors)
- I²C sensor arrays (temperature, pressure, IMUs, etc.)
- Robotics and automation systems
- Embedded systems needing multiple I²C buses
Package Includes
- 1 × PCA9548A I²C 8-Channel Multiple Extensions Development Board
Available at Microspark Store – Your Trusted Electronic Component Store! At Microspark Store, we ensure every product is quality-checked and tested before shipping, so you can buy with confidence and start building without worries.
Please Note: Product information has been collected from various sources across the web. While we have made every effort to ensure the accuracy of the information presented, slight variations may still occur. Kindly verify the specifications and compatibility before using this module in your projects.
Disclaimer: Images shown are for illustration only and may not exactly represent the final product. Minor differences may occur due to lighting, display variations, or manufacturer updates. We reserve the right to make changes to the product without prior notice.
