All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
I2C MULTIPLEXER: Uses the PCA9548AP chip to expand a single I2C interface into six independent channels, allowing multiple I2C devices to coexist on the same bus.
DIP SWITCH ADDRESS CONTROL: Onboard DIP switch lets you easily adjust the I2C address from 0x70 to 0x77, supporting multi-unit cascading to connect even more I2C devices.
6 GROVE PORT EXPANSION: Features six extended Grove ports via HY2.0-4P PORTA connectors, making it simple to attach multiple sensors and modules simultaneously.
MULTI-UNIT NESTING: Supports multiple unit cascading, offering greater flexibility and scalability for complex projects requiring numerous I2C devices in parallel.
COMPACT & LE GO-COMPATIBLE: Measures 1.89 x 0.94 x 0.43 inches and weighs just 0.26 oz, with LE-GO-compatible holes for easy integration into custom builds and enclosures.
Description
The M5Stack I2C Hub 1 to 6 Expansion Unit v2.1 (Model: Unit PaHub v2.1) is a compact and versatile I2C multiplexer that uses the PCA9548AP chip to expand a single I2C interface into six independent channels. This makes it easy to connect multiple I2C devices — even those sharing the same address — onto a single I2C bus by polling through channels. The unit features an onboard DIP switch for straightforward I2C address adjustment (0x70–0x77, default 0x70), enabling multi-unit cascading to support even larger device networks. Equipped with 6 extended Grove ports and an I2C HY2.0-4P PORTA connector, it offers broad compatibility and allows multiple nesting configurations. LE GO-compatible holes add mounting flexibility for custom builds. Operating between 32°F and 104°F, it weighs just 0.26 oz and measures approximately 1.89 x 0.94 x 0.43 inches, making it ideal for compact setups. Whether you're building sensor arrays or complex embedded systems, the PaHub v2.1 delivers the scalability and flexibility your project demands.
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