You would need to set up the satellites in such a way that anyone receiving your message is viewing their orbits edge on. Your satellites would also have to be extremely large and fairly close to your host star. And there’d have to be no dust between your star and the receiver.

As a method to communicate with people you don’t know exist, it’s not very good because chances are they won’t be viewing your satellites edge on. For people you know are there, it’s needlessly complicated and expensive.

If you’re going to go to the trouble, you’d be better off making a Dyson swarm and cloaking your star completely. You’d get energy back and be just as detectable for a civilization that thought to compare visible and IR sources (which some Earth scientists have done, with negative results).