Product description: Qwiic Mux - 4-channel module with I2C multiplexer - PCA9846 - SparkFun SPX-22362
Are you doing a project but have too many sensors with the same I2C address? Here comes the solution to your problems - Qwiic Mux, a 4-channel module with an I2C multiplexer from SparkFun . The module enables communication with many I2C peripherals that have the same bus address, and also has as many as eight of its own configurable addresses, which allows the use of up to 32 I2C buses and only on one connection.
The manufacturer has also prepared a repository available on the GitHub platform - check it out!
Qwiic Mux - 4-channel module with I2C multiplexer - PCA9846 - SparkFun SPX-22362.
Communication takes place only via the I2C bus.
Special features of the tile
- Allows you to connect 4 separate I2C digital buses to one interface.
- It is equipped with the PCA9846 chip, which has as many as 8 of its own addresses, which allows you to connect up to 32 I2Cs in total.
- All communication takes place exclusively via the I2C bus.
- The PCA9846 has a product identification (ID) register that greatly facilitates detection in DataLogger / OpenLog applications.
- It has Qwiic connectors that allow you to quickly connect peripheral devices without the need to solder connectors and cables.
- It has compact dimensions, so it easily integrates into the project.
Technical specifications of the module
- Module type: bus multiplexer
- Input communication: I2C bus
- Built-in chip: PCA9846
- Number of channels: 4
- Possibility to change the address of the I2C input bus: from 0x70 to 0x77 (without offset)
- Switchable: 8 separate I2C buses
- Supported clock frequencies: 100 kHz and 400 kHz
- Status indication: LED
- Address identification: yes
- Pinouts: 6x Qwiic connector
- Supply voltage: 1.65V to 3.3V (Qwiic only works at 3.3V)
- Board dimensions: 25.4 x 25.4 mm
The user can change the bus address via jumpers located at the back of the module.
