TCA9554: TCA9554 Interface

Hey Preethi,

We do not provide software/drivers for our I2C devices (unless it is included in an EVM release) however you can find arduino code by searching for PCA9554 as our TCA line up fixes some issues from the PCA line up and is a direct replacement to our competitor's PCA9554. If there is code for PCA9554 then it will also work for TCA9554.

This link also appears to be useful.

This code I find on arduino's website does not particularly mention PCA9554 but it does mention PCA9555 which is a 16 bit version so the code should also be similar. (registers may be a little different though I believe this can get you started)

Thanks,

-Bobby