Controlling multiple outputs whit the same ground.

Hi, im doing a project about controlling a microwave whit an arduino yun via wifi. The thing is the microwave have like 4 commons point that it combines whit other points to write a number on the screen. Can i with the arduino yun use differents outputs pin whit the same ground even though there is the same output pins on the inputs pins of the microwave? if not can i combine two outputs pins to send a siganl and how i can controll it over wifi via bridge. Or any suggestions will be appreciate. Thanks

Is this a microwave oven? Can you give details of the make and model? And perhaps a diagram of the wiring you are referring to?

...R

Robin2: Is this a microwave oven? Can you give details of the make and model? And perhaps a diagram of the wiring you are referring to?

...R

If it is a microwave oven, I'd tell him to steer well clear of any idea of playing with it, unless he want's his brain cooked.