7Semi TCA9548A I2C Multiplexer Board 8-Channel I2C Bus Switch Module

The 7Semi TCA9548A I2C MUX Module is a compact and efficient solution for expanding I2C communication in embedded electronics projects. Built around the reliable TCA9548A I2C multiplexer IC, this module allows a single microcontroller to communicate with up to 8 independent I2C channels. It is especially useful when working with multiple sensors or peripherals that share the same fixed I2C address.

Instead of modifying hardware addresses or redesigning circuits, the module enables seamless software-controlled channel switching, making integration simple and flexible. It works perfectly with Arduino, ESP32, STM32, Raspberry Pi, and other popular development platforms. The board provides stable signal routing, reliable communication, and easy expansion for advanced sensor networks, automation systems, robotics, and IoT applications.

Whether you are building environmental monitoring systems, multi-sensor data loggers, industrial automation devices, or educational electronics projects, the 7Semi TCA9548A module helps simplify complex I2C connectivity challenges while saving development time and PCB space.

Features:

Based on TCA9548A 8-channel I2C multiplexer IC

Supports communication with up to 8 I2C devices

Resolves I2C address conflicts efficiently

Compatible with both 3.3V and 5V systems

Allows selective channel switching through software

Supports standard I2C communication protocol

Compact and easy-to-use breakout board design

Suitable for sensor expansion applications

Works with Arduino, Raspberry Pi, ESP32, and STM32

Ideal for embedded, robotics, and IoT projects