IO expander code

[Murugan]

Dear Nordic Team,

Thanks for support.

I am using PCA10028 hardware, I want IO expander code for PCAL6408.

[Einar Thorsrud]

From looking at the PCAL6408A datasheet I see that it is controlled by I2C (TWI). We do not have any example of using that device specifically, but you can use the TWI master driver to communicate with it. The TWI Sensor Example has a practical example of using the driver. For the details of how to control the PCAL6408A, you have to refer to it's datasheet.

[Murugan]

Thanks for answering. I want byte write and byte read function.