Last Updated on September 22, 2024 by pg@petergamma.org
«You’re calculation is correct, but I believe you made a typo in the beginning. Your SCLK frequency is 5.277MHz as listed on the right. I’m not quite sure what the 162kHz corresponds to. In theory, you can daisy-chain up to 97 devices, as you calculated above.»
Peter Gamma thinks the ADS1299 EEG chip from Texas Instruments is worth keeping an eye on it, especially since PiEEG for the Raspberry Pi is available. Check also if it is not simpler to use one ADS1299 EEG with one Raspberry Pi an clock the ADS1299-x externally, and then to synchronize several Raspberry Pi s so that all EEG channels are sampled at exactly the same time. We think if this works it would be the simpler method than reading out the EEG signal with daisy chain algorithms.
The ADS1299-x provides two methods for device clocking: internal and external. For applications that require higher accuracy, the ADS1299 can also accept an external clock signal.
Please notice also the PiEEG currently seem to deliver a noisy signal. Here suggestions how to solve this problem.
Since each ADS1299 EEG chips has 8 channels, we can have 776 channels in daisy chain mode.
Peter Gamma from www.petergamma.org 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?