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.
Specifications | Parameters |
---|---|
Channel Control IC | PCA9548AP |
Communication protocol | I2C: 0x70 (can be modified by resistance 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 |
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.