Animation Nodes - Have an effector control the rotation of many objects I am trying to wrap my head around animation nodes, I have followed This tutorial and it was easy to understand and do. However I am trying to do something a little different and I am completely lost. 

In the attached picture all these objects are separated and put in a group. I would like to have my empty sphere control the rotation and falloff of each object. So I can show the tiles flipping over. 

The above tutorial is only for making a grid from a single object, I don't need the grid and I have many objects. So I don't know how to convert this to what I need. 

Any help with the node set up would be appreciated.
Your Question

We can compose a transformation matrix out of the locations, then generate the rotation matrix using the Offset Matrices Node and then set the objects transformations to this new matrices.



Warning - Make sure not change the locations of the matrices or set the locations of the object by mistake to any value.

Recommended

If your objects are exactly the same, then you can replicate them using the Object Instancer node and set their locations using thew Distribute matrices node (See my answer here: Answer):



Note - If the object has modifiers and you want to copy them, use Copy Full Object option in the Object Instancer.

If you objects are different, then you can replace the Object Instancer with the Object From Group just as you did.