M5Stack PaHub v2.1 I2C Multiplexer The M5Stack PaHub v2.1 is a compact I2C multiplexer unit designed to expand a single I2C bus into six independent channels, enabling stable and flexible connections for multiple I2C sensors and modules within your IoT and embedded projects. 1-to-6 I2C Bus Expansion Featuring a 1-in-6-out I2C bus architecture, this unit allows you to connect up to six I2C devices to one controller, effectively solving address conflicts and wiring limitations when building complex systems. On-Board DIP Switch Configuration Equipped with an easy-to-use on-board DIP switch, you can quickly configure channel enabling, address settings, and I2C routing behavior without additional soldering or complicated setup, making debugging and reconfiguration simple. PCA9548AP I2C Switch Chip At its core, the PaHub v2.1 integrates the reliable PCA9548AP I2C switch IC, providing stable performance, low crosstalk, and clear signal isolation between channels, which is ideal for robust multi-device communication. Ideal for IoT Development Designed for IoT developers and makers, this unit fits perfectly into smart home, data acquisition, automation, and sensor network applications where multiple I2C peripherals need to be managed from a single microcontroller. Color: As Shown Material: plastic Package Contents: 1*Unit PaHubv2.1 1*cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.