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Hi P300_MAN. Yes! We have 8bit boards in stock, and they are shipping daily. go to www.openbci.com and click on the store link
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Hi roman3017, Can you describe how you bricked the board?? Is there an issue that could trap other users? Please go here for the latest OpenBCI 32bit code https://github.com/OpenBCI/OpenBCI_32bit There are two changes that you need to make …
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The two models of OpenBCI V3 have different voltage input constraints (sorry) OpenBCI 8bit Board has an Arduino UNO bootloaded ATmega328P, and operates at 5V (~50mA draw) Input to the OpenBCI 8bit Board is 6V to 12V. OpenBCI 32bit Board has a…
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neverminding...
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Hi Henryk,YES! we will be sharing our PCB layout and production files as soon as we start shipping to our kickstarter backers, which will be very soon. Right now we are in the process of programming and testing the hardware. We have no plans to …
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In the interest of safety, we are not releasing the PCB layouts of our V1 and V2 boards.While they had isolation designed into them, they were never tested, and the digital isolation IC that we used went EOL on us. Thanks for your understanding.
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Hi florian,We are using RFduinos for our Bluetooth radio modules. RFduino bases their modules on Nrodic SoC radio ICs. The Dongle is allowing us to communicate with computers using a high-speed radio protocol called Gazelle made by Nordic and acces…
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The SRB1 and SRB2 pins are connected to the internal multiplexer that provides complex switching between the input pins of the ADS1299, internal test signals, and the ADCs. See Figure 19 of the datasheet. The SRB2 pin has the option to be open or c…
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The BIAS generation on the ADS1299 is not that complex, but can be complicated. You are right tha the BIAS_INV is used as an input from daisy-chained BIAS_OUT pins, to include as many BIAS signals as you like from stacked devices. The BIAS_REF is …
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There seems to be a change. This part http://www.semiconductorstore.com/cart/pc/viewPrd.asp?idproduct=48477&cm_mmc=promo_lp-_-rf_digital-_-page_link-_-rfd51822 is no longer available. Their replacement appears to use a different Nordic core wi…
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It looks like Bluegiga is building on TI's CC2540, which does support high baud rates. http://www.bluegiga.com/en-US/products/bluetooth-classic-modules/wt12-bluetooth--class-2-module/ http://www.ti.com/product/cc2540 I'm also looking at the Nordi…
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Hi Jet, I'm Joel, one of the founders of OpenBCI, and very intimate with the workings of our system and we've tested numerous types of electrodes in our lab. Active dry electrodes work very well with the OpenBCI system. I have good data from test…
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You're right, we are not publishing the production files because we don't want anyone to get maimed, or killed. Our schematic files are available, and you could certainly use them, along with the photos of our work, to produce your own board. Bef…
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Hi, sounds like you are doing work very close to our own. my best advice to you is to get a prototype up and running and test, test, test. We will keep publishing our progress here and on the website. Hope to see some results of your integratio…
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impedance monitoring! sweet. you should also check out this thread http://www.openbci.com/forums/topic/ads1299-electrode-impedance-measurement-algorithm/ I don't think the pogo pins are the way to go for electrodes at all. too expensive, too bu…
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I have always run into the 60Hz noise. Have to travel around the room and such to 'escape' it, usually wind up finding a quiet place, or just turn on the notch filter that Chip made (sweet filter man!) I have been messing around with capacitive e…
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yeeouch! that helmet does not sound very comfortable, though I guess everyone to their taste I have very similar results with ECG on the ADS1299. I can grab bare leads with my fingers and get a very well defined and noise free (60Hz removed) tra…
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Hey! love the Way Finder! Can you strap a camera to that thing? I agree with Chip, your alpha is shockingly crisp, even with 60dB range. I'm also not surprised. Everybody has different alpha outputs. My alpha is distressingly non-existent. What e…
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yes, i think for sure we will be able to distinguish between sleep stages with active dry electrodes.
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Hi, We're trying to stay away from the shield design format because of safety issues. There's too much liability involved when you allow someone to attach a piece of metal to their body that could be connected also to the mains power. It is possibl…
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Can you describe where the electrodes need to be placed and what to look for when looking for EOG?
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Hi, I'm coming to this discussion alittle late, but here you go. There are issues writing to the SD card using the high level SDFat tools, for one. Also, it make a big difference what kind of card you're using. Best to use one of the newer high…
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William, You will be able to stack and stack and stack if you want. The connections will allow for that, and of course, it will be hackable! Joel
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awesomer and awesomer !