Unit Pahub v2.0
Description
Unit Pahub v2.0 is an I2C device splitter that can expand a single I2C HY2.0-4P interface to six channels, allowing the connection of multiple slave devices with the same I2C address (by controlling the polling of different channels to enable coexistence of devices with the same address). It features an embedded PCA9548AP-I2C multi-channel switch IC, supporting the expansion of 6 groups of I2C devices.
Features
- I2C HY2.0-4P PORTA expansion
- 2 x LEGO-compatible holes
- Allows multiple nesting
- 1-6 expansion
Includes
- 1 x Unit Pahub v2.0
- 1 x HY2.0-4P Grove cable (20cm)
Applications
- I2C expansion
Specifications
| Specification | Parameter |
|---|---|
| Channel Control IC | PCA9548AP |
| Communication Protocol | I2C:0x70 (can be modified via resistors A0, A1, A2) |
| Net Weight | 7g |
| Gross Weight | 19g |
| Product Dimensions | 48 x 24 x 12mm |
| Package Dimensions | 136 x 92 x 12mm |
Learn
Referring to the schematic and the PCA9548AP datasheet, this Unit can modify the I2C address of the device by controlling the level combination of the A0~A2 pins. (Default address is 0x70)
The PCB of the Unit has three reserved SMD resistor soldering positions, labeled A0-A2, as shown below.
After soldering a 0-ohm resistor, the corresponding pin will change from low level to high level. The pin level combination and its corresponding I2C address are shown in the table below.
Schematics
PinMap
Unit Pahub v2.0
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.A | GND | 5V | SDA | SCL |
Datasheets
Model Size
Softwares
Arduino
UIFlow 1.0
EasyLoader
| Easyloader | Download Link | Remarks |
|---|---|---|
| Unit Pahub v2.0 Test Easyloader | download | / |