Hello to All,
I've been given a job at my church to install a bell in one of the classrooms and a button in the secretary's office. This will be used to let the people in the classroom know when the service is over. My problem is the classroom is in a different building across the road. I was thinking about some sort of wireless device since running a wire is out of the question. Does anyone know of a product for sale or a circuit I could build or anything else that will solve this problem. Any help I can get will be greatly appreciated.
Harry