Send Values to Arduino Through Popup Screen (Bluetooth HC-05 Module)

Hi, I'm working on a small project. At the moment I have made a pop-up screen by viewing multiple projects from other people and have managed to make the pop-up screen and am able to neter values into it. However, I am confused how I can sedn the value I enter to Arduino.

All I need help with for now is to be able to send the value to the serial monitor of the arduini via bluetooth. I have attached screenshots of the block code for the pop-up screen. Can some please provide some assistance?