UART connection with mikroE SpeakUp Click

Hi,

I'm setting up a project using using one Arduino UNO interfaced with a mikroE SpeakUp Click, for voice recognition. I am using a mikroBus Shield to connect the click board with Arduino. I'm a noob with coding, but I figured out they need to be unterfaced through a UART connection, on pins 0(RX) and 1(TX). Can anybody give me a hint on how to do this?
Thank you for helping me out.

Best