Unit Pahub v2.0
SKU:U040-B
Description
Unit Pahub v2.0 is an I2C device splitter that can expand a single I2C HY2.0-4P interface into six channels, and allows mounting slave devices with the same I2C address (by controlling polling of different channels to enable co-existence of devices with identical addresses). It is embedded with a PCA9548AP-I2C multi-channel switch IC, supporting the expansion of 6 sets 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 (modifiable via resistors A0, A1, A2) |
| Product Size | 48.0 x 24.0 x 10.8mm |
| Product Weight | 7.5g |
| Package Size | 138.0 x 93.0 x 11.8mm |
| Gross Weight | 13.0g |
Learn
According to the schematic and PCA9548AP datasheet, this Unit can modify the I2C address of the device by controlling the logic level combinations of pins A0~A2 (default address is 0x70).
Three SMD resistor pads are reserved on the PCB of the Unit for A0-A2, as shown in the figure below.
After soldering a 0Ω resistor, the corresponding pin level will change from low to high. The logic level combinations of the pins and their corresponding I2C addresses are shown in the table below.
Schematics
PinMap
HY2.0-4P
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.A | GND | 5V | SDA | SCL |
Datasheets
Model Size
Softwares
Arduino
UiFlow1
Easyloader
| Easyloader | Download | Note |
|---|---|---|
| Unit Pahub v2.0 Test Easyloader | download | / |