CJMCU TCA9548A I2C 8 Channel Multiple Extensions Development Board

is a compact and versatile I2C multiplexer module designed to connect multiple I2C devices to a single microcontroller or development board. It uses the TCA9548A chip to divide one I2C bus into eight individually selectable channels, making it especially useful when multiple sensors or displays have the same I2C address. 

The module allows users to select and communicate with different I2C channels through software commands. This makes it possible to use multiple identical I2C sensors, OLED displays, temperature sensors, or other I2C modules without address conflicts. The board supports configurable I2C addressing, allowing multiple TCA9548A modules to be used in larger project.

The CJMCU TCA9548A I2C 8 Channel Multiple Extensions Development Board is suitable for Arduino, ESP32, ESP8266, Raspberry Pi, and other I2C-compatible development platforms. It is widely useful in robotics, IoT, automation, sensor monitoring, embedded systems, data acquisition, and DIY electronics projects.

Key Features:

• 8-channel I2C multiplexer development board

• Based on the TCA9548A I2C multiplexer

• Allows one I2C bus to communicate with up to 8 selectable channels

• Helps overcome I2C address conflicts

• Suitable for connecting multiple identical I2C devices

• Supports independent channel selection

• Configurable I2C address

• Compatible with 3.3V and 5V systems

• Suitable for Arduino, ESP32, ESP8266, Raspberry Pi, and similar boards

• Ideal for multiple I2C sensors and OLED displays

• Useful for robotics, IoT, automation, and embedded projects

• Compact and easy-to-use design

• Suitable for breadboard prototyping and PCB projects

• Excellent choice for students, hobbyists, makers, and electronics developers

• Useful for sensor arrays and multi-device I2C applications