pixhawk cube arduino connection

ArduCopter
1

What does the GPS 2 connection do?
We are trying to establish a pixhawk cube connection with arduino, but TELEM2 input is used. Can we use GPS input instead of TELEM2?

2

yes, you can. It’s serial4

4

thanks can you tell me how to use it

5

there is an entire thread on this forum on arduino communication.