Most biological signals, whether they are muscle signals, brain signals or voice commands, are random and unending in their initial form. They are processed and filtered from the noise in the first stage and then classified, analyzed and extracted the required features of it in the second stage. In this study, the brain signals of a healthy person were captured according to a clinical protocol prepared for the purpose of the study, which is two consecutive blinks separated by 5 seconds rest and then a set of digital filters were used to analyze and classify these signals in order to obtain control from them.