Last Updated on June 28, 2025 by pg@petergamma.org
For many years, Peter Gamma from www.petergamma.org

has reviewed EEG devices. But in recent years, the ratio of cost to what the devices can do has not become better. What is wrong with these devices? Do these seller know each others and want to keep prices high? Or is there something wrong with the ratio of sellers to buyers? To many sellers for the view buyers which exist? Every crap came onto the market Peter Gamma from www.petergamma.org was looking for. From HackEEG up to PiEEG. But all these new EEG devices turned out to be old and noisy prototypes which have been given up.
On the contrast, when we look for instance at the development of Home Assistant, we can see that there are countless integrations for countless devices available.
https://www.home-assistant.io/integrations
For most smartwatches, there is a Home Assistant integration. And smartwatches are also physiological multi-sensor devices. But why to stream smartwatch data into Home Assistant?
Most probably the most remarkable example for this development is the Apple watch which can be streamed into Home Assistant.
But what to do there with the Apple watch data? And why are there no EEG devices which are connected to Home Assistant?
There is an example how to connect OpenBCI to a real-time database such as firebase:
https://ocw.cs.pub.ro/courses/iothings/proiecte/2022/open_bci_esp32
Was this example also triggered by Peter Gamma from www.petergamma.org? All Peter is looking for can sooner or later be found somewhere in the web. But is he the only one interested in these future oriented projects?
One trend was clearly visible for us in recent years, and that is that everything is sold on YouTube, if it works or not.
And the longer we review, the more these EEG products become suitable to be sold also by Vedia Switzerland:
And is this not a clear sign that something is wrong? Peter Gamma from www.petergamma.org is a physiologist at the university level, this is for sure.
Altough the (Polar Seller?) Eni from Switzerland doubts about it:
https://www.dcrainmaker.com/2021/02/verity-optical-sensor.html
And this let s us doubt about the quality of the posts of Swiss poster Eni in the DC Rainmaker blog.
Peter Gamma from www.petergamma.org is a private project on his personal website. But for him is clear, that the web and YouTube are the wrong places to get his information, also for his private project.
And in the future, he will go here:
https://infozentrum.ethz.ch/en
to get his information. And he will avoid YouTube and WordPress as a source of information as much as possible.