DIY board, daisy data stream with USB to serial converter [resolved]

andree1988andree1988 hong kong
edited December 2019 in Build-it-yourself

Hello,

I've connected the Cyton+Daisy to the computer terminal via a FTDI usb to serial converter(with serial port utility software).
I sent the commands "? b s" manually and I got the following results.
My question is given that eight daisy channels have been identified why not Daisy board data in the log data and there are only 8 main board channels(there are only 31 bytes of channels 1~8 and accelerometer)?
Thanks for your helps.

" ? ":
OpenBCI V3 8-16 channel
On Board ADS1299 Device ID: 0x3E
On Daisy ADS1299 Device ID: 0x3E
LIS3DH Device ID: 0x33
Firmware: v3.1.2
$$$
Board ADS Registers
ADS_ID, 00, 3E, 0, 0, 1, 1, 1, 1, 1, 0
CONFIG1, 01, B6, 1, 0, 1, 1, 0, 1, 1, 0
CONFIG2, 02, C0, 1, 1, 0, 0, 0, 0, 0, 0
CONFIG3, 03, EC, 1, 1, 1, 0, 1, 1, 0, 0
LOFF, 04, 02, 0, 0, 0, 0, 0, 0, 1, 0
CH1SET, 05, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH2SET, 06, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH3SET, 07, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH4SET, 08, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH5SET, 09, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH6SET, 0A, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH7SET, 0B, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH8SET, 0C, 68, 0, 1, 1, 0, 1, 0, 0, 0
BIAS_SENSP, 0D, FF, 1, 1, 1, 1, 1, 1, 1, 1
BIAS_SENSN, 0E, FF, 1, 1, 1, 1, 1, 1, 1, 1
LOFF_SENSP, 0F, 00, 0, 0, 0, 0, 0, 0, 0, 0
LOFF_SENSN, 10, 00, 0, 0, 0, 0, 0, 0, 0, 0
LOFF_FLIP, 11, 00, 0, 0, 0, 0, 0, 0, 0, 0
LOFF_STATP, 12, 00, 0, 0, 0, 0, 0, 0, 0, 0
LOFF_STATN, 13, 00, 0, 0, 0, 0, 0, 0, 0, 0
GPIO, 14, 0F, 0, 0, 0, 0, 1, 1, 1, 1
MISC1, 15, 00, 0, 0, 0, 0, 0, 0, 0, 0
MISC2, 16, 00, 0, 0, 0, 0, 0, 0, 0, 0
CONFIG4, 17, 00, 0, 0, 0, 0, 0, 0, 0, 0

Daisy ADS Registers
ADS_ID, 00, 3E, 0, 0, 1, 1, 1, 1, 1, 0
CONFIG1, 01, 96, 1, 0, 0, 1, 0, 1, 1, 0
CONFIG2, 02, C0, 1, 1, 0, 0, 0, 0, 0, 0
CONFIG3, 03, EC, 1, 1, 1, 0, 1, 1, 0, 0
LOFF, 04, 02, 0, 0, 0, 0, 0, 0, 1, 0
CH1SET, 05, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH2SET, 06, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH3SET, 07, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH4SET, 08, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH5SET, 09, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH6SET, 0A, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH7SET, 0B, 68, 0, 1, 1, 0, 1, 0, 0, 0
CH8SET, 0C, 68, 0, 1, 1, 0, 1, 0, 0, 0
BIAS_SENSP, 0D, FF, 1, 1, 1, 1, 1, 1, 1, 1
BIAS_SENSN, 0E, FF, 1, 1, 1, 1, 1, 1, 1, 1
LOFF_SENSP, 0F, 00, 0, 0, 0, 0, 0, 0, 0, 0
LOFF_SENSN, 10, 00, 0, 0, 0, 0, 0, 0, 0, 0
LOFF_FLIP, 11, 00, 0, 0, 0, 0, 0, 0, 0, 0
LOFF_STATP, 12, 00, 0, 0, 0, 0, 0, 0, 0, 0
LOFF_STATN, 13, 00, 0, 0, 0, 0, 0, 0, 0, 0
GPIO, 14, 0F, 0, 0, 0, 0, 1, 1, 1, 1
MISC1, 15, 00, 0, 0, 0, 0, 0, 0, 0, 0
MISC2, 16, 00, 0, 0, 0, 0, 0, 0, 0, 0
CONFIG4, 17, 00, 0, 0, 0, 0, 0, 0, 0, 0

LIS3DH Registers
0x07 00
0x08 00
0x09 00
0x0A 00
0x0B 00
0x0C 00
0x0D 00
0x0E 00
0x0F 33

0x1F 00
0x20 08
0x21 00
0x22 00
0x23 18
0x24 00
0x25 00
0x26 00
0x27 00
0x28 00
0x29 00
0x2A 00
0x2B 00
0x2C 00
0x2D 00
0x2E 00
0x2F 20
0x30 00
0x31 00
0x32 00
0x33 00

0x38 00
0x39 00
0x3A 00
0x3B 00
0x3C 00
0x3D 00
$$$

Send " b " and after a short time send " s ":

41 00 C3 BF 73 C4 16 45 C3 D3 84 C3 AA 03 C3 9C 34 C1 9E AD C3 50 F0 3F FF FF FF 90 FF C0 0E F0 C0
41 01 FC CE 37 FC DB AE FC D8 2C FC C8 E8 CD F0 7E B2 7A E8 02 90 16 80 00 00 00 00 00 00 00 00 C0
41 02 87 9F 6E 88 36 79 87 B3 3C 87 5F 3A 87 45 CE 83 3B 62 86 A7 C9 7F FF FF 00 00 00 00 00 00 C0
41 03 FC D1 66 FC DD 87 FC D9 FD FC CA BE CD F2 B4 B2 7D 1F 02 8E 83 80 00 00 00 00 00 00 00 00 C0
41 04 87 EE 01 88 48 5E 87 D8 52 87 85 92 87 72 5D 83 38 92 86 C5 B5 7F FF FF 00 00 00 00 00 00 C0
.
.
.
41 E1 FC CD 76 FC DA F4 FC D7 50 FC C8 01 CE 71 C9 B3 0B 2E 02 90 94 80 00 00 00 00 00 00 00 00 C0
41 E2 87 98 64 88 37 C7 87 B3 42 86 C1 2B 87 59 FF 83 3D 78 86 E5 FF 7F FF FF 00 00 00 00 00 00 C0
41 E3 FC CF E2 FC DB F9 FC D8 83 FC C9 0A CE 73 34 B3 0C 98 02 8F B8 80 00 00 00 00 00 00 00 00 C0
41 E4 87 F1 DB 88 4B DA 87 D9 EF 86 E8 4C 87 87 EB 83 3A 06 87 03 6F 7F FF FF 00 00 00 00 00 00 C0

Comments

  • wjcroftwjcroft Mount Shasta, CA

    Andree, hi. You mention: "I've connected the Cyton+Daisy to the computer terminal via a FTDI usb to serial converter(with serial port utility software)."

    Can you clarify, are you using the Cyton dongle, which includes an FTDI usb serial converter?

    Regards, WIlliam

  • wjcroftwjcroft Mount Shasta, CA

    What do you mean by "computer terminal"? Are you referring to a laptop?

  • andree1988andree1988 hong kong

    Hi WIlliam,
    Thanks for your fast reply. I made the cyton+Daisy boards without the Bluetooth module. I was able to connect the board to the
    OpenBCI GUI 4.1.7 software via the WiFi module(ESP8266) and displaying 16-channel data plot. I need to
    transfer stream data to the laptop without OpenBCI GUI. So, based on the schematic of cyton, I made a wired
    connection between PIC32 pins(RXD[D6] , TXD[D14]) and "FTDI Friend" module to send control commands(?,b,s, ...) and receive stream data. But I see 8-channel data. How do I add 8-daisy channels to the data stream?
    Best regards,
    Andree

  • wjcroftwjcroft Mount Shasta, CA

    The RFduino's (dongle = 'host', and mainboard = 'device') are NOT just passive data stream channels. They actually implement a subset of the SDK functions (for radio channel selection, autoscan, etc.), and insert bytes into the stream as well.

  • wjcroftwjcroft Mount Shasta, CA

    Have you looked over some of the other threads in the Build-It-Yourself category? I moved your thread this same area.

    https://openbci.com/forum/index.php?p=/categories/build-it-yourself

    https://openbci.com/forum/index.php?p=/discussion/1773/programming-cyton-without-rfduino-dongle-our-completed-ssvep-demo

  • andree1988andree1988 hong kong

    I have no problem programming.
    My problem is getting 8-channels instead of 16-channels. When I send Command "b" for a cyton+daisy, this is the format of the received data:
    send " ? ":
    OpenBCI V3 8-16 channel
    On Board ADS1299 Device ID: 0x3E
    On Daisy ADS1299 Device ID: 0x3E
    LIS3DH Device ID: 0x33
    Firmware: v3.1.2
    $$$

    Send " b " and after a short time send " s ":
    41 00 C3 BF 73 C4 16 45 C3 D3 84 C3 AA 03 C3 9C 34 C1 9E AD C3 50 F0 3F FF FF FF 90 FF C0 0E F0 C0
    41 01 FC CE 37 FC DB AE FC D8 2C FC C8 E8 CD F0 7E B2 7A E8 02 90 16 80 00 00 00 00 00 00 00 00 C0
    41 02 87 9F 6E 88 36 79 87 B3 3C 87 5F 3A 87 45 CE 83 3B 62 86 A7 C9 7F FF FF 00 00 00 00 00 00 C0
    41 03 FC D1 66 FC DD 87 FC D9 FD FC CA BE CD F2 B4 B2 7D 1F 02 8E 83 80 00 00 00 00 00 00 00 00 C0
    41 04 87 EE 01 88 48 5E 87 D8 52 87 85 92 87 72 5D 83 38 92 86 C5 B5 7F FF FF 00 00 00 00 00 00 C0
    .
    .
    .
    41 E1 FC CD 76 FC DA F4 FC D7 50 FC C8 01 CE 71 C9 B3 0B 2E 02 90 94 80 00 00 00 00 00 00 00 00 C0
    41 E2 87 98 64 88 37 C7 87 B3 42 86 C1 2B 87 59 FF 83 3D 78 86 E5 FF 7F FF FF 00 00 00 00 00 00 C0
    41 E3 FC CF E2 FC DB F9 FC D8 83 FC C9 0A CE 73 34 B3 0C 98 02 8F B8 80 00 00 00 00 00 00 00 00 C0
    41 E4 87 F1 DB 88 4B DA 87 D9 EF 86 E8 4C 87 87 EB 83 3A 06 87 03 6F 7F FF FF 00 00 00 00 00 00 C0

    According to "SDK section" and "Data format" description
    This is just 8-channel "device" data. Why 8-channels of "Daisy" data does not exist?
    I was able to connect the board to the OpenBCI GUI 4.1.7 software via the WiFi module(ESP8266) and displaying 16-channel data plot. Do you have a sample of 16-channel raw stream?

  • wjcroftwjcroft Mount Shasta, CA
    edited December 2019

    You can Private Message others in the thread I mentioned, who succeeded in a Build-It-Yourself, without using the RFduino. Click on their name, then use the Message button.
    https://openbci.com/forum/index.php?p=/discussion/1773/programming-cyton-without-rfduino-dongle-our-completed-ssvep-demo

    One of your previous posts said you were using Wifi and the GUI to stream the data, not serial port. Yet the output above looks like it is from the serial port?

    In serial port mode with Daisy, Cyton STILL only outputs 8 channel packets, but alternates. This could be what you are seeing.

    https://docs.openbci.com/docs/02Cyton/CytonDataFormat#16-channel-data-with-daisy-mdule

    If you intend to Wifi, you CAN get the data in raw 16 channel mode. According to this page, the packets are still sent in 33 byte format. Which likely means they alternate packets, as described above. But WITHOUT the averaging mentioned on the link above. If you output via serial port, you WILL get the 125 Hz sample rate with averaging scheme.

    https://docs.openbci.com/docs/05ThirdParty/03-WiFiShield/WiFiAPI

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