An Enhanced Implementation Method for a Single Channel Portable EEG System on Brain Monitoring Applications Using Notch Filters

The study offers a precise method for detecting brain waves that are known to be a significant sign of neurological issues. One of the world's most intricate machines is the human brain. Within the neurological and psychiatric fields, the electroencephalogram (EEG) is a highly sought-after signal since it is the sole way to obtain real-time data about the brain that has excellent temporal resolution. The application of brain waves to human-computer communication was made feasible by developments in computing and signal processing technologies. In order to create an EEG platform for Brain Computer Interface programs, this research combines programming assistance for the software interface with the hardware circuit design. Because human bodies often produce extremely weak EEG signals, it's important to eliminate waveform distortion, offset, and other related issues in addition to noise interference. Simultaneously, the variable amplifying and filter function are designed with the application of digital methods. Low pass and notch filters can be used for filtering, and instrumentation and gain stage amplifiers can be used for amplification. The one-channel EEG system is a dependable, affordable, and portable device. The brain waves are measured by the Electroencephalogram (EEG). The use of brain waves for human-computer communication was made possible by developments in equipment and signal processing technologies. The EEG system is employed to identify the brain waves' Alpha, Beta, Delta, and Theta frequencies.