Last Updated on September 14, 2024 by pg@petergamma.org
OpenBCI allows with the Daisy module up 16 EEG channels. With the current architecture of OpenBCI, it is not possible to use InfluxDB and more than two ADS1299 chips. This would require that all the channels are sampled at exaclty the same time.Else not all the parameters can be obtained, such as phase and coherence:
https://forums.raspberrypi.com/viewtopic.php?p=2252319#p2252319
Scientists from Indonesia have built a 32 channel EEG device from four Texas Instruments ADS1299 demo kits, and published papers with it on researchgate.net:
They read out the EEG signals from the ADS1299 demo boards with daisy chain algorithms. There is also a 32 channel EEG board on Aliexpress which uses four ADS1299 EEG chip. Data from this board need to be read out in two phases:
https://www.aliexpress.us/item/1005002553363982.html?gatewayAdapt=glo2usa
But we do not know of a manufacturer at the highest level such as mBrainTrain, g.tec medical or another EEG device manufacturer who builts medical or research grade EEG devices who has chosen this architecture.
And alternative architecture is InfluxDB:
To build such devices is now at the level of «How to Electronics» instructions, but still time consuming. We found some papers with physiological sensors and InfluxDB:
But we do not know of EEG device manufacturers either who build up such devices in the range up to 50 000 USD.
These are considerations of a physiologist who is not an expert in electronic components. And I invite electronics engineers to participate in this discussion.
Information for product sellers who do stock market speculation and scalping with products mentioned by Peter Gamma on www.petergamma.org
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According to the little experience of Peter Gamma from www.petergamma.org, many of the products listed here are still full of issues which need to be resolved. If you do stock market speculation and scalping with those, you will loose Peter Gamma from www.petergamma.org as a buyer of these products and as a reviewer. Is this not risky? Will you not loose a majority of your costumers as well?
And is it not so, that society in general does not accept stock market speculation and scalping with products as those which are listed here? And will you not be politically incapable of finding a majority of the voters if you do stock market speculation and scalping with these products?
And as a consequence will you not be condemned and punished by a political referendum soon? Especially if you do this to a Swiss, since are not majority of Swiss against stock market speculations and scalping with people on a budget? And people in Switzerland are known for a lot of political referendums, since we have direct democracy in this country.
And Peter Gamma from www.petergamma.org will fight up to the European Court of Human Rights against people who do stock market speculation and scalping with the products which are mentioned on www.petergamma.org. And if they do not have yet the legal basis there to do so, he will fight for it.
What is a scalping?
Scalping is a trading strategy in which an investor buys and sells a single asset multiple times throughout the day. The goal of a scalper is to make a small profit over a large number of small trades, rather than a huge profit on each individual trade.
What is a scalper?
A scalper is someone who buys something and resells it at a price far above the initial cost. For instance some says: “He got theater tickets through a scalper”: Someone who buys tickets to an event in order to resell them at a profit. And is it not also scalping if you take reviews from this site to make out of it a new product offer, and sell it for a higher price? We doubt that you will be successful with it. Since Peter Gamma will review your product and will user not come back to www.petergamma.org after that?