HUB is a unit that is used in order to expand the GROVE ports over the M5Stack device. For example, if we want sensors with different I2C addresses or output to 3 devices at the same time. (M5Stack device usually can output one device at a time to to limited amount of grove ports)
If you are connecting two I2C slave devices onto HUB that share the same address, you will have problem getting I2C data from both. The I2C addresses of the devices must be different, they can be changed manually by changing the resistor values.
Product Features
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GROVE Expander
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Two Lego-compatible holes
Includes
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1x HUB Unit
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1x Grove Cable
Specification
| Resources | Parameter |
|---|---|
| Net weight | 5g |
| Gross weight | 17g |
| Product Size | 32*24*12mm |
| Package Size | 67*53*12mm |