I added a Digital trigger on D12 using the procedure from this link

I need to send triggers to mark external events while recording with the OpenBCI. Eg, to mark eyes open, eyes closed, and a variety of other subjective states. 

@hackr, a related concept is using the AUX data for external triggers. This is well defined on Cyton but still unclear on Ganglion,

Hi everyone, I recently purchased the OpenVIBE 15 board and I would like to use it for a Science Fair experiment.  For the experiment I need to get "stimulations"/"markers" into th

Hello all,

to change the mode and allow a trigger input nothing happens and the

Hi, I noticed a couple days ago that the cyton trigger tutorial was updated to report that now Firmware 3.x.x incorporates the code needed to receive an external trigger/marker that can be added to th

http://openbci.com/forum/index.php?p=/search&Search=trigger

http://docs.openbci.com/Tutorials/06-External_Trigger_Cyton_Example

I'm using one of the general purpose pins to receive a trigger signal. What do I have to change in the library to change the aux channels recording, that the OpenBCI python library print in the termin

Is EEG helpful to find out about the 'fastest way to learn'? Learning means failing.Failing can trigger error related negativity: [1]

5) Description of timing of problem: Sometimes in the middle of a recording the recording will suddenly flatline at -0.1875 V. After that, then the device will continuously record that same value even

Hello,

Yes, I've read the external trigger tutorial, but as you say it's a digital pin and not analog pin. 

Davide, hi. I assume you've seen the external trigger tutorial,

int triggerPin = 18;        // the CNY17 Collector is on pin 18

EVEN the user who submitted that issue page, if they "used the parts listed" for the Ultracortex build -- could have wound up with bolts or oil coating that trigger this. Mechanical part sup

This way you will keep some free room (31-2x16/4) bytes , enough to tag and much more,  the record with your FPGA-trigger.

2) Having known sampling instants (with reference to start of stimulus). I want to have my first sample at a known instant for better averaging. Initially I thought interrupting the PIC32 with trigger

re: starting the ADS1299 on your trigger pulse. No. The ADS has to run continuously. You can't start/stop it at high rates.