Re: Newbie Questions

OpenBCI is a decent platform to base something on, but there are a few flaws. It's bandwidth is severely hobbled by the crap bluetooth dongle they used in the design. It also has a fair bit of useless hardware, like the accelerometer and SD card. The 8-bit board's Atmega processor is popular but old and underpowered. The 32-bit board uses some oddball PIC processor.

That last comment would be the problem I also see in the EEG64 project. It uses an oddball 16-bit processor. We really need to base things around popular, market leading processors that are readily available in mass quanity for cheap.

I need a high performance system with a low per-channel cost so I’ve looked at the cheapest high performance options.

STM32F103C8 boards are available for about $4.75 and would be, by far, the best price/performance board readily available. Arduino Nano USB boards are only about $2.50 and are by far the most popular, but I think it would be a mistake to base anything new around such an old 8-bit processor.

I'm currently looking at creating an EEG board using an ESP8266 module. This would be the cheapest solution of all, with a $3-4 ESP8266 module handling both the SPI data and wifi connection. It remains to be seen how many channels the 8266 can handle while maintaining the wifi link.

-Jake

Sent: Sunday, June 28, 2015 at 2:22 AM

From: "Martin Molina" <[email protected]>

To: [email protected]

Subject: Re: [Openeeg-list] Newbie Questions

Looks like John Ruelas is on the ball. I would like to suggest that we rally behind the www.EEG64.com project so that the open source community truly has an up to date eeg platform. Once it's functionality is tested and confirmed, then attention can turned towards the refinement of non-contact or dry active electrodes.

Thoughts?

Martín

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