Wired Cyton. Device connected on GUI but no data stream is displayed

geraldo · December 2018

Hello everyone,

I bought the parts and made the board using the gerber available on Git.

I mounted the OpenBCI Cyton with 8 ch, and I flashed the FW using the Pickit.

I can connect the GUI with the board, but I can not see the stream of data from the OpenBCI GUI.

I'm using a wired connection to the PC, using a USB-UART converter instead of the RFDuino (because I couldn't find it to sell).

I know about the noise and the dangerous of not using a isolated connection like bluetooth, wi-fi or even with an isolator, but now my goal is

only to see it working and after I'll acquire the isolator or develop the firmware to another bluetooth chip.

Using a serial reader the output from the board when its starts is:

OpenBCI V3 8-16 channel

On Board ADS1299 Device ID: 0x3E

LIS3DH Device ID: 0x0

Firmware: v2.0.1

$$$

I can connect to the board through the OpenBCI GUI, but when I start the data stream the software does not show me data.

I have another informations and I can post them here, just ask me

Do you know if the RFDuino change something in the data stream?

Thanks in advance for your patience and help

wjcroft · December 2018

Likely what is happening is that your serial data stream does not exactly match what is expected by the GUI. Yes, the RFduinos do alter the byte stream (sent by the PIC) slightly. See the source code. Sorry, I don't know right off the top of my head what those alterations are.

https://github.com/OpenBCI/OpenBCI_Radios

Strikeroot · January 2020

Did you end up getting your wired connection working @geraldo ?

Wired Cyton. Device connected on GUI but no data stream is displayed

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