ARM MCU-Based Experimental EEG Signal Generator Using Internal DAC and PWM Outputs

Year 2022, Volume: 35 Issue: 3, 886 - 894, 01.09.2022

Ertuğrul Karakulak

https://doi.org/10.35378/gujs.860994

Cited By: 3

Abstract

Electrophysiological signal generators are widely used in biomedical engineering research, biomedical education and the testing of devices in hospitals. Such signal generators are also available commercially. The EEG (Electroencephalography) signal is an electrophysiological signal which is emitted from the brain. In this study, a signal generator that produces experimental EEG signals taken from databases is proposed. The proposed signal generator reads the experimental data from an SD card with SDIO serial protocol. In addition, the PWM and DAC outputs of the microcontroller are used and examined separately to generate the signal. It has been shown that the experimental signals taken from the database can be generated by using cheap and easily accessible electronic devices.

Keywords

Signal generator, Electroencephalograpram, Electroencephalograpram, Microcontroller, Pulse width modulation

Thanks

The author would like to thank Şuayp Çağrı Yener for his help with software.

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