Embedded Programming

For my final project I am using buttons as keys to either play or record sounds. I want to have a single switch that changes the function of all the buttons (5 buttons, but each one can be used as record or play buttons, so using the switch basically gives me 10 buttons). I will use a SAMD11 to read the state of the switch and then change the function of the buttons

I was able to program the SAMD11 on a separate board and test that it was working correctly by connecting the buttons to power an led. I was then going to remove the microcontroller to my main final project board, but I haven't finished the final board yet.