M5Stack I2C Hub 1 to 6 Expansion Unit
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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
Applications
I2C device expansion
Specifications
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
Note: When it's connected, the PaHUB2 will be polling control the different channels to achieve in-device coexistence. Please pay attention to the order of channels when programming.
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.
Schematics
Compatible
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