Unit Pahub v2.0
Description
PaHUB2, is an I2C Expandable Hub, which can expand a single I2C HY2.0-4P interface and connects up to 6 I2C channels. It allows you to mount slave devices with the same I2C address (by polling control the different channels to achieve in-device coexistence). Embedded PCA9548AP-I2C multi-channel switch IC, Save you worries with insufficient I2C interface of the expansion.
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
Applications
- I2C device expansion
Specifications
| 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 | 136*92*12mm |
Please refer to the schematic and PCA9548AP data manual, the Unit can modify the I2C address of the device by adapting the level combination of A0~A2 pins. (The default address is 0x70)
3 Position of Welding patch are reserved on the PCB board of the Unit, A0-A2 respectively, as shown in the figure below.
After welding the 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.
EasyLoader
Schematic
Related Link
- Datasheet
