Humans can walk, talk, move, breathe, pulsating heart and various life activities in the body are events that are closely related to electrical problems. Parts of the human body, specifically the nerves and muscles in carrying out their functions, are closely related to electrical phenomena. Is the emergence of a potential difference that is very interesting to be observed. Thus, humanity is actually a very interesting biolistrik system to be studied. Therefore this research uses technology that utilizes brain waves to help the difficulty of people with disabilities in controlling light. By utilizing EEG (electroencephalograph) technology, brain waves can be captured and amplified, where electrodes are attached to the scalp. Where the EEG (Hardware) output will be processed to the microcontroller, the output in this study uses two lights namely red and blue where the output is a lamp that will live on certain conditions (Alpha and beta) where the red lights will live at a frequency of 8-13Hz ( Alpha) and the blue light will turn on the frequency 13-40Hz (Beta) and to turn on this lamp using a relay. The parameters of the research have been carried out as desired. But when testing the output that most often comes out is when the beta condition, because Beta is a condition where someone is in a relaxed, relaxed, and simple thinking, while Alpha is a condition where someone is in a state of hard thinking and full concentration. And the output voltage on the obtained hardware is 2.2v on average after several measurements. Where the output of this hadware will be used as input to the software.
Keywords: Electroencephalograph, Microcontroller, Relay, Lampu