A short video of how I designed, built, and programmed an EEG machine.

[SolarSunrise]

I decided to make a short video on an electronic project (homemade electroencephalogram) that I have worked on throughout high school for fun. I threw together some footage I have recorded over the years in under 2 minutes. It shows me going through PCB design, etching PCB's, soldering the components, programming, ... etc. etc.

The video is not of the best quality, but I hope you find it somewhat interesting! Thanks.

[Krampmeier]

Thank you for sharing, this looks like a nice and pragmatic design, and the video is fun to watch (would still be entertaining if it was a tad more detailled)! Does that TI frontend chip have differential inputs? Did you check if your design complies with the IEC 60601?

[SolarSunrise]

Thank you for sharing, this looks like a nice and pragmatic design, and the video is fun to watch (would still be entertaining if it was a tad more detailled)! Does that TI frontend chip have differential inputs? Did you check if your design complies with the IEC 60601?

Yup. The ADS1299 is fully differential delta sigma ADC. It is really top-notch for recording electrophysiological signals of any kind. I threw together this video for my non-tech friends so that's why there aren't a huge lot of engineering details. There is much more information in my Hackaday page if you want to know more about it. (link is in the video description)

Concerning IEC 60601, my project is an absolute joke. I don't recommend anybody follow through with my design since it has no isolation whatsoever. This project was a fun proof-of-concept, hence why I haven't considered any medial/industrial standards. Although it is battery powered, it is still absolute crap in terms of safety.

Works great though. I am currently working on active electrodes that do not require any electrode gel. However, schoolwork is getting in the way...