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 to six channels, and allows devices with the same I2C address to be mounted (achieved by polling different channels to allow same-address devices coexistence). It is embedded with a PCA9548AP-I2C multi-channel switch IC, supporting expansion for 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 |
| 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
Referring to the schematics and PCA9548AP datasheet, this Unit can modify the device I2C address by controlling the A0~A2 pin level combinations. (Default address is 0x70)
Three solder pads for chip resistors A0-A2 are reserved on the Unit’s PCB, 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
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 | / |