# Data too long to fit in transmit buffer error

**URL:** <https://discuss.blues.com/t/data-too-long-to-fit-in-transmit-buffer-error/316>\
**Category:** Notecarrier F\
**Created:** [July 2, 2021, 6:31am UTC](https://discuss.blues.com/t/data-too-long-to-fit-in-transmit-buffer-error/316 "2021-07-02T06:31:46Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![SensaWeb](https://avatars.discourse-cdn.com/v4/letter/s/d2c977/32.png) [@SensaWeb](https://discuss.blues.com/u/SensaWeb)\
**Post date:** [July 2, 2021, 6:31am UTC](https://discuss.blues.com/t/data-too-long-to-fit-in-transmit-buffer-error/316/1 "2021-07-02T06:31:46Z")

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I’m trying the sensor tutorial here - [note-tutorials/sensor-tutorials/arduino-wiring/esp32-with-library/esp32-with-library.ino at master · blues/note-tutorials · GitHub](https://github.com/blues/note-tutorials/blob/master/sensor-tutorials/arduino-wiring/esp32-with-library/esp32-with-library.ino) - and I’m getting the above error from the notecard.sendRequest(req) line - any ideas?

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**Author:** ![SensaWeb](https://avatars.discourse-cdn.com/v4/letter/s/d2c977/32.png) [@SensaWeb](https://discuss.blues.com/u/SensaWeb)\
**Post date:** [July 2, 2021, 7:01am UTC](https://discuss.blues.com/t/data-too-long-to-fit-in-transmit-buffer-error/316/2 "2021-07-02T07:01:08Z")

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I’ve just updated to v1.3.5 of the Blues library in Arduino IDE and now I’m just getting “notecard not responding” with just barebones code from here [Sensor Tutorial - Blues Wireless Developers](https://dev.blues.io/get-started/tutorials/sensor-tutorial/notecarrier-af/esp32/arduino-wiring/#configure-your-notecard)

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**Author:** ![zfields](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/zfields/32/29_2.png) [@zfields](https://discuss.blues.com/u/zfields)\
**Post date:** [July 2, 2021, 11:34am UTC](https://discuss.blues.com/t/data-too-long-to-fit-in-transmit-buffer-error/316/3 "2021-07-02T11:34:21Z")

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Hello @SensaWeb,

Thanks for joining our forum, we are glad to have you!

Would you describe or share a photo of your hardware setup?

**MCU:**  
**Notecard Firmware Version:**  
**Notecarrier:**  
**Blues Wireless `note-arduino` SDK Version:** v1.3.5

_NOTE: To find the Notecard Firmware Version, send `{"req":"card.version"}` to the Notecard from the [Notecard Playground](https://dev.blues.io/notecard-playground/)._

Looking forward to working with you,  
Zak

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<div class="post-metadata">

**Author:** ![SensaWeb](https://avatars.discourse-cdn.com/v4/letter/s/d2c977/32.png) [@SensaWeb](https://discuss.blues.com/u/SensaWeb)\
**Post date:** [July 3, 2021, 4:13am UTC](https://discuss.blues.com/t/data-too-long-to-fit-in-transmit-buffer-error/316/4 "2021-07-03T04:13:49Z")

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Thanks for the reply Zak.  
I’m running the ESP32 on the Notecarrier-AF  
Notecard Firmware Version: notecard-1.5.2.12200

When programming it I had the usb cable powering just the esp32, not the Notecarrier. I tried having the Notecarrier powered separately via another usb cable but that didn’t help.

Also I’m located in Australia, hence the slow replies 🙂

Cheers  
Darren

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<div class="post-metadata">

**Author:** ![zfields](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/zfields/32/29_2.png) [@zfields](https://discuss.blues.com/u/zfields)\
**Post date:** [July 6, 2021, 3:30pm UTC](https://discuss.blues.com/t/data-too-long-to-fit-in-transmit-buffer-error/316/5 "2021-07-06T15:30:42Z")

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@SensaWeb I took the hardware you were using, along with the firmwares listed, but I was unable to reproduce your error.

I used the sample code you referenced, verbatim, with the exception of changing the `productUID` variable to point to my Notehub account, and everything seemed to work.

Can you share (or DM) a picture of your hardware setup and a copy of the exact firmware you are running?