Connecting Arduino Uno Wifi Rev2 to Base Shield V2

Hey guys! I am currently working on a project in order to try and connect an ORP, pH and EC probe to an Arduino Uno Wifi Rev2. We have a Seeeduino Lotus board and a Base Shield V2 board to make it easier to connect the modules. I am currently working on linking either the Lotus board or the Base Shield board to the Arduino. Does anyone have any helpful information towards accomplishing this goal? Thanks!