Daily Archive for May 27th, 2011

CEREBRO – A Brain Activity Visualizer

Cerebro is a system that uses an EEG to measure electromagnetic activity from the surface of the brain and provide a visual display based on that activity. The 8051 microprocessor essentially reads data from an EEG device and, though visualization algorithms, computes a display for a custom-designed LED panel. Hardware communication was done through UART peripheral chips. Additionally, the visualization algorithms are customizable through analog slider board interface. The software was designed to be extremely modular. The main program calls upon libraries to perform tasks such as grabbing and interpreting data packets from the EEG, reading equalizer slider values, and creating and sending packets of data out to the lighting system.

Cerebro was my final project for 6.115, a microcontroller class and one of MIT’s most hands-on courses. I’m a big fan of classes that let you do whatever you want for a final project; it’s really amazing to see the creativity that students have in designing fantastic projects. I plan to reimplement it with a AVR.

I’ve uploaded my report, schematics, and code here.