Consider this device sitting on your bedroom window sill. Consider if that bedroom window is on a second story window facing the back yard. No way to peer inside short of being right on the window sill. Is that an unreasonable violation of your 4th Amendment rights?
In my neighborhood two story houses are built back to back so the one could see into a second story window of another across the yards.
Shall I not look out my windows on the upper floor for fear of gazing into my neighbor's room? Or do I have the right to look at anything that is outside my window?
“No way to peer inside short of being right on the window sill.”
That's what blinds and curtains are for.
For a actual example: A painting crew is painting the outside of a three story condo while a woman is nude sunbathing on her nearby two story balcony.
Are her rights being violated if one side of that building has lots of extra paint on it?
So really there's no difference between a drone or a plane or a satellite flying over and taking pictures of whatever is visible to whatever instruments they carry.
“Is that an unreasonable violation of your 4th Amendment rights?”
Someone leans a ladder against my house to see in the second story window? Yes.
Someone sits in their second story room and looks my direction, No.