M5Stack I2C Hub 1 to 6 Expansion Unit
📦 Location of the warehouse: Munich
🚚 We will ship your order within 24 hours after the order is taken.
- Pre-Ordering: If an item is unavailable, you can pre-order it. We'll dispatch once stock is replenished, usually within 10 working days.
- Express Shipping: Need it faster? Contact us via email or through our live chat support, and we'll arrange expedited delivery for you.
Free Shipping from 30€ in Germany, 50€ in the EU!
- EU Countries Delivery Time: 4~8 working days.
- Other Countries Delivery Time: 2~2.5 weeks.
Free shipping for you
Free Shipping from 30€ in Germany, 50€ in the EU!
Trustpilot rating: 4.4/5.0
Thank you for your support - rate us on Trustpilot!
M5Stack I2C Hub 1 to 6 Expansion Unit
The PaHUB2 unit serves as an I2C Expandable Hub specifically engineered to address the constraints of a singular I2C interface. It facilitates the expansion of one I2C HY2.0-4P interface, allowing for the integration of up to six additional I2C channels.
By implementing polling control across various channels, the hub enables the connection of multiple slave devices that share identical I2C addresses. This design promotes coexistence among devices, allowing for effective communication without conflicts by transitioning between the channels.
To enhance its functionality, the PaHUB2 unit incorporates the PCA9548AP I2C multi-channel switch integrated within the hub. This switch IC enables a seamless transition between the various I2C channels, addressing concerns regarding the limitation of I2C interfaces for expansion. The PaHUB2 offers a convenient and efficient solution for augmenting the I2C capabilities of a system, facilitating the connection and communication with multiple I2C devices that may share the same address.
Recommended Articles
How Do I Turn On and Turn Off My M5StickC PLUS2?
What is the difference between M5StickC PLUS and PLUS2?
Build a Bicycle Speed Detection System
M5Stack Beginner: Environment Setup
M5Stack Beginner: Arduino Library Management
M5Stack Beginner: M5Burner Burning
Product Features
-
I2C HY2.0-4P PORTA expansion
-
2x LEGO compatible holes
-
Support multiple nesting
-
1-6 Expansion
Include
-
1x Pahub2 Unit
-
1x HY2.0-4P Cable
Application
- I2C device expansion
Specification
| Specifications | Parameters |
|---|---|
| Channel Control IC | PCA9548AP |
| Communication protocol | I2C: 0x70 (can be modified by resistance A0, A1, A2) |
| Net weight | 7g |
| Gross weight | 19g |
| Product size | 48 * 24 * 12mm |
| Packing size | 67 * 53 * 12mm |
Effective Date: March 27, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
3. Returns & Refunds
If you're not satisfied with your purchase, you may be eligible for a return or exchange:
- Return for Refund: Within 15 days of receipt (unopened).
- Return for Replacement: Within 30 days of receipt (damaged or defective).
- Exchange Window: Up to 30 days from receipt.
Please email us at info@openelab.io for a return authorization before sending anything back.
Return Conditions
- Items must be in original, clean, and mint condition with packaging intact.
- Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
- Include the receipt, a brief note with your name, order number, and reason for return.
Shipping & Fees
- Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
- Refunds may be subject to additional shipping fees unless the return is due to our error.
- A flat €8 shipping fee will be deducted for returned items that originally qualified for free shipping.
Payment Platform Fees
For refunds processed through third-party platforms such as PayPal or Braintree, a standard 3.5% service fee may be deducted to cover payment processing costs.
