The paper describes about brain waves and its uses for various applications based on their frequencies and different parameters, which can be implemented as a real time application using a smart brain wave sensor system for paralyzed patients. Brain wave sensing detects a person's mental status. The purpose of brain wave sensing is to give exact treatment to paralyzed patients. The data or signal is obtained from the brain waves’ sensing band. This data are converted as object files using Visual Basics. The processed data is further sent to Arduino, which has the human's behavioral aspects like emotions, sensations, feelings, and desires. The proposed device can sense human brainwaves and detect the percentage of paralysis that the person is suffering. The advantage of this paper is to give a real-time smart sensor device for paralyzed patients with paralysis percentage for their exact treatment.