Add a Funduino sensor on Bord -Code

sos
software
electronics

#1

Hello.
they are the first weapons, I wanted to ask precisely one thing: I should add a water level sensor inside the central tube where the board goes. The sensor is a Funduino very easy arduino sensor with two pin for power and one for output, connect the wires one at 5 v and one to the GND and I turn on the output pin and connect it to A15. Now the arduino code to insert is very simple but where do I have to put it and how do I make it work ?? I hope so much that you will know how to help me.