TCA9548A I2C Multiplexer Module 8-Channel

The TCA9548A 8-Channel I2C Multiplexer Module solves the common problem of I2C address conflicts by allowing up to 8 identical I2C devices to be connected to a single microcontroller. It features a purple PCB with clearly labeled pins and comes with header pins for easy breadboard or PCB integration.

Key Features:

• 8 independent I2C channels (SC0–SC7 / SD0–SD7)
• Resolves I2C address conflicts — connect multiple identical sensors
• I2C address selectable via A0, A1, A2 pins (up to 8 multiplexers on one bus)
• RST pin for hardware reset
• Onboard voltage regulator — supports 3.3V and 5V systems
• Compatible with Arduino, Raspberry Pi, ESP32, STM32, and more
• Includes header pins for easy installation
• Compact purple PCB with clear pin labeling

Specifications:

• Chip: TCA9548A
• Channels: 8 (bidirectional I2C)
• I2C Address: 0x70 – 0x77 (configurable via A0/A1/A2)
• Supply Voltage: 1.65V – 5.5V
• Interface: I2C (SCL, SDA)
• PCB Color: Purple

Perfect for projects using multiple OLED displays, BME280 sensors, MPU6050 IMUs, or any I2C device that shares the same address.