TCA9548A 1-to-8 I2C Multiplexer Module (8-Channel I2C/IIC Expansion Board for Arduino & ESP32)

The TCA9548A 1-to-8 I2C Multiplexer Module is an I2C expansion board designed to split a single I2C bus into eight independent I2C channels. Based on the TCA9548A I2C multiplexer IC, the module enables multiple I2C devices with identical addresses to operate on the same microcontroller without address conflicts. Each downstream channel can be individually selected through standard I2C commands, making it ideal for complex multi-sensor and embedded applications.

Compatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other I2C-enabled development platforms, the module provides a simple and reliable solution for expanding I2C connectivity in robotics, IoT, automation, and data acquisition systems.

Key Features -

• Expands one I2C bus into eight independent I2C channels

• Based on the TCA9548A I2C multiplexer IC

• Eliminates I2C address conflicts

• Supports multiple devices with identical I2C addresses

• Standard I2C communication interface

• Compatible with 3.3V and 5V logic systems

• Low power consumption

• Compact development board design

• Easy integration with Arduino and microcontrollers

• Ideal for multi-sensor and IoT applications

Specifications -

• Product type - I2C Multiplexer Development Board

• Chip model - TCA9548A

• Expansion type - 1-to-8 I2C Multiplexer

• Number of channels - 8 Independent I2C Channels

• Communication interface - I2C / IIC

• Operating voltage - 3.3V to 5V DC

• Logic compatibility - 3.3V / 5V Systems

• Board type - Development Module

• Mounting type - PCB Module

• Application - I2C Device Expansion and Address Isolation

Applications -

• Multi-sensor data acquisition systems

• Arduino and ESP32 projects

• Raspberry Pi development

• IoT sensor networks

• Robotics and automation systems

• Environmental monitoring stations

• Industrial control systems

• Embedded system development

• Smart home automation

• Educational electronics projects