Last Updated on September 14, 2024 by pg@petergamma.org
The OpenBCI Cyton is noise-free and uses a PIC32MX250F128B
- it has 0.5 mA/MHz current consumption
- this is 25 mA at 50 MHz
The Raspberry Pi RP2040
- consumes about 24 mA on average, without any code running:
https://learn.sparkfun.com/tutorials/rp2040-thing-plus-hookup-guide/hardware-overview
Raspberry Pi Zero’s
Product Recommended PSU current capacity Typical bare-board active current consumption
Raspberry Pi 400 3.0A 800mA
Raspberry Pi Zero 1.2A 100mA
Raspberry Pi Zero W 1.2A 150mA
Raspberry Pi Zero 2 W 2A 350mA
- Event the Raspberry Pi zero draws 4 times more power (estimation from these figures without warranty) than the PIC32MX250F128B which is in the OpenBCI Cyton
The Raspberry Pi 4 and 5 draw much more power
Raspberry Pi 4 B
Pi State Power Consumption
- Idle 540 mA (2.7 W)
- ab -n 100 -c 10 (uncached) 1010 mA (5.1 W)
- 400% CPU load ( stress –cpu 4 ) 1280 mA (6.4 W)
Raspberry Pi 5 5.0A 800mA
- To reduce noise we suggest to use a single board computer with little power consumption.
- The OpenBCI Cyton has no issues with noise and uses a PIC32MX250F128B
The Raspberry Pi RP2040 used in this device does not use much more power than the PIC32MX250F128B in the OpenBCI Cyton:
From the hardware it is worth discussing if this device could be an OpenBCI Cyton successor which does not have the hardware limitations of OpenBCI Cyton. But since the device is not on the market everywhere we suppose that there are issues with this device, and we do not know of a software demonstration which proof it’s function.
- Unfortunately the shown video shows only a hardware demonstration and no software demonstration.
- Event the Raspberry Pi zero draws estimatted 4 times more power than the PIC32MX250F128B which is in the OpenBCI Cyton, but is is worth testing it with PiEEG.
- And also a cable with PiEEG is worth testing to if we can reduce noise::
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?