m5stackM5Stack· Electronic components
I2C Hub 1 to 6 Expansion Unit v2.1 with DIP Switch (PCA9548A)
Manufacturer part no. U040-B-V21
$5.95≈ 5.16 €
Manufacturer part no. U040-B-V21
Listed by m5stack at €5.16. Delivered to France, including shipping, VAT and any customs duty, it comes to about €24.19. Prices last checked on 2026-09-16.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
| Item | €5.16 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €4.03 |
| Total delivered | €24.19 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
| Weight | 16 g |
Description Unit PaHub v2.1 is an I2C multiplexer unit that uses the PCA9548AP chip solution to expand a single I2C interface into six channels. By selecting different channels, it allows multiple devices with the same or different I2C addresses to coexist on the same I2C bus (switching via polling channels). The module is equipped with an onboard DIP switch to easily adjust the I2C address of Unit PaHub v2.1, supporting multi-unit cascading to connect more I2C devices. Compared to its predecessor, it offers greater flexibility and scalability in scenarios where multiple I2C devices are used in parallel. This product is suitable for scenarios where multiple I2C devices are used simultaneously. Features I2C HY2.0-4P PORTA expansion Allows multiple nesting 6 extended Grove ports DIP switch for I2C address switching LEGO-compatible holes Includes 1 x Unit PaHub v2.1 1 x HY2.0-4P Grove cable (20cm) Applications I2C expansion Specifications Specification Parameter I2C Multiplexer IC PCA9548AP Communication Protocol I2C: 0x70~0x77 (default: 0x70, adjustable via DIP switch) Operating Temperature 0 ~ 40°C Product Size 48.0 x 24.0 x 10.8mm Product Weight 7.3g Package Size 138.0 x 93.0 x 13.0mm Gross Weight 12.3g Learn and Documents → DOCUMENTS
