TCA8418: May I ask whether TCA8418 extension button supports combined keys, such as Ctrl+C key, to achieve copy function? Thank you!

Hey Abby,

Short Answer: Yes

This device can store up to 10 events (realistically 5 presses AND releases). This means you can see if someone pressed two keys at once by reading the FIFO to see if multiple keys were pressed at the same time. It will require some software/coding on your part (the I2C master) but you could recognize multiple key presses.

Thanks,

-Bobby