TCA9548A Archives - Microcontrollers Lab

TCA9548A I2C Multiplexer Arduino Use Same Address I2C Devices

October 9, 2026

Arduino with TCA9748A Multiplexer and OLEDs demo

In this tutorial, we will learn to use TCA9548A I2C multiplexer with Arduino. We will discuss how to use multiple I2C devices with Arduino having the same address by incorporating a hardware solution. By using a TCA9548A I2C Multiplexer, we will be able to increase the I2C addresses range of Arduino and able to connect … Read more

TCA9548A I2C Multiplexer with ESP32 Use Multiple Devices having Same and Different Addresses

October 9, 2026

ESP32 with TCA9748A Multiplexer with OLEDs demo

In this tutorial, we will learn about ESP32 I2C communication protocol using different I2C devices having same and different addresses. We will discuss how to use multiple I2C devices with ESP32 having the same address by incorporating a hardware solution. By using a TCA9548A I2C Multiplexer, we will be able to increase the I2C addresses … Read more