# Latest **URL:** https://discuss.blues.com/latest.md?page=4 [Latest](https://discuss.blues.com/latest.md) · [Categories](https://discuss.blues.com/categories.md) · [Tags](https://discuss.blues.com/tags.md) **Page:** 5 --- ## [NTN transmission problem](https://discuss.blues.com/t/ntn-transmission-problem/3464)
**Author:** [@alex.sells](https://discuss.blues.com/u/alex.sells)\ **Replies:** 3\ **Last updated:** [February 18, 2026, 7:23pm UTC](https://discuss.blues.com/t/ntn-transmission-problem/3464 "2026-02-18T19:23:08Z")
The device does not transmit the packets stored in the queue. The files are successfully uploaded to the device and sent without complications via the Wi‑Fi network, but the same cannot be done via the NTN network. In t… --- ## [Health logs in Notehub on each sync from card.attn](https://discuss.blues.com/t/health-logs-in-notehub-on-each-sync-from-card-attn/3462)
**Author:** [@will](https://discuss.blues.com/u/will)\ **Replies:** 2\ **Last updated:** [February 18, 2026, 2:33am UTC](https://discuss.blues.com/t/health-logs-in-notehub-on-each-sync-from-card-attn/3462 "2026-02-18T02:33:27Z")
Hello, I’m using the Notecarrier F and Swan. I recently followed this guide to enable DFU, and I’ve noticed that now each time I call hub.sync I get flooded with a bunch of \_health.qo events that look like this: { "me… --- ## [Notecard GPS is always Off](https://discuss.blues.com/t/notecard-gps-is-always-off/3458)
**Author:** [@JimK](https://discuss.blues.com/u/JimK)\ **Replies:** 7\ **Last updated:** [February 16, 2026, 5:27pm UTC](https://discuss.blues.com/t/notecard-gps-is-always-off/3458 "2026-02-16T17:27:25Z")
I am trying to get accurate GPS data. I noticed the lat lon was not accurate and when I ran this command it says the GPS and mode are off so I ran a “card.location.mode”, “mode”: “periodic”. {“req”: “card.location”} … --- ## [Record invalid for a route](https://discuss.blues.com/t/record-invalid-for-a-route/3461)
**Author:** [@JimK](https://discuss.blues.com/u/JimK)\ **Replies:** 1\ **Last updated:** [February 14, 2026, 1:08pm UTC](https://discuss.blues.com/t/record-invalid-for-a-route/3461 "2026-02-14T13:08:11Z")
I want to have two different files to upload and apply different routes to at different run times in the code (e.g. sensors upload every 5 mins, power usage every 30 mins) I am trying to add a second upload by defining a… --- ## [Issue with receiving empty HTTPs request bodies through proxy route](https://discuss.blues.com/t/issue-with-receiving-empty-https-request-bodies-through-proxy-route/3456)
**Author:** [@AnnaStevens](https://discuss.blues.com/u/AnnaStevens)\ **Replies:** 9\ **Last updated:** [February 12, 2026, 10:20pm UTC](https://discuss.blues.com/t/issue-with-receiving-empty-https-request-bodies-through-proxy-route/3456 "2026-02-12T22:20:49Z")
We’ve been using a proxy route to post data from Notehub to an IIS web interface on our servers. This has worked without issue for months, but suddenly on 2/3 at 11 am CST, the interface has only been receiving blank req… --- ## [Mojo card not found on notecarrier](https://discuss.blues.com/t/mojo-card-not-found-on-notecarrier/3457)
**Author:** [@JimK](https://discuss.blues.com/u/JimK)\ **Replies:** 5\ **Last updated:** [February 12, 2026, 9:38pm UTC](https://discuss.blues.com/t/mojo-card-not-found-on-notecarrier/3457 "2026-02-12T21:38:07Z")
am trying to install the mojo card on the notecarrier I followed the diagram on the above link (see attached pic) but when I connect a USB cable to the notecarrier and open the In-Browser Terminal - IoT Connectivity a… --- ## [Routing data to adafruit IO - Record invalid](https://discuss.blues.com/t/routing-data-to-adafruit-io-record-invalid/3453)
**Author:** [@JimK](https://discuss.blues.com/u/JimK)\ **Replies:** 5\ **Last updated:** [February 11, 2026, 8:03pm UTC](https://discuss.blues.com/t/routing-data-to-adafruit-io-record-invalid/3453 "2026-02-11T20:03:24Z")
I am trying to forward multiple feeds to my adafruit IO account and getting the error: under events , status it says 422 {“error”:“request failed - Record invalid. Failed to save data to uuuuuu/groups/groupblue. data m… --- ## [Discrepancy between template size and card.usage.get reported size](https://discuss.blues.com/t/discrepancy-between-template-size-and-card-usage-get-reported-size/3452)
**Author:** [@mallonwm](https://discuss.blues.com/u/mallonwm)\ **Replies:** 1\ **Last updated:** [February 11, 2026, 3:09pm UTC](https://discuss.blues.com/t/discrepancy-between-template-size-and-card-usage-get-reported-size/3452 "2026-02-11T15:09:19Z")
I’m using a compact template to keep the cellular sending size of each note to a minimum, with the reported size being 17 bytes. However, when checking with card.usage.get, the note size is reported as 328 bytes. My temp… --- ## [How to power the esp32 feather on the notecarrier board to upload arduino code](https://discuss.blues.com/t/how-to-power-the-esp32-feather-on-the-notecarrier-board-to-upload-arduino-code/3449)
**Author:** [@JimK](https://discuss.blues.com/u/JimK)\ **Replies:** 6\ **Last updated:** [February 11, 2026, 2:41pm UTC](https://discuss.blues.com/t/how-to-power-the-esp32-feather-on-the-notecarrier-board-to-upload-arduino-code/3449 "2026-02-11T14:41:37Z")
I bought these boards back in mid 2025 and I am getting back to using them: Notecarrier F (Feather) Notecard Cellular When I first got them I tested them and everything seemed ok but I forgot how to power the es… --- ## [A way to upload Host Firmware Notes to Notehub](https://discuss.blues.com/t/a-way-to-upload-host-firmware-notes-to-notehub/3426)
**Author:** [@Jakov](https://discuss.blues.com/u/Jakov)\ **Replies:** 5\ **Last updated:** [February 10, 2026, 6:02pm UTC](https://discuss.blues.com/t/a-way-to-upload-host-firmware-notes-to-notehub/3426 "2026-02-10T18:02:54Z")
Hi Blues team, Is there a way to provide the Notes to host firmware on Notehub other than UI? I was playing around with internal binary embedded metadata Found this though: But notes field doesn’t cut it. Not… --- ## [Change DFU Mode Remotely](https://discuss.blues.com/t/change-dfu-mode-remotely/3450)
**Author:** [@rfadell3](https://discuss.blues.com/u/rfadell3)\ **Replies:** 3\ **Last updated:** [February 10, 2026, 2:03am UTC](https://discuss.blues.com/t/change-dfu-mode-remotely/3450 "2026-02-10T02:03:50Z")
I have a few Notecards in the field that are set to alt DFU mode when they should be aux. It’s preventing the host MCU from updating. Is there a way to update the DFU mode remotely? --- ## [Inline comments on notehub routes and fleets etc](https://discuss.blues.com/t/inline-comments-on-notehub-routes-and-fleets-etc/3447)
**Author:** [@devElert](https://discuss.blues.com/u/devElert)\ **Replies:** 1\ **Last updated:** [February 8, 2026, 6:33pm UTC](https://discuss.blues.com/t/inline-comments-on-notehub-routes-and-fleets-etc/3447 "2026-02-08T18:33:53Z")
Is it possible to set comments on notehub routes and fleets? Having comments on environment variables would also be good. I took a look at the schema and the notehub UI but didn’t find anything. It would help our notehu… --- ## [Need help bringing Airnote back to life](https://discuss.blues.com/t/need-help-bringing-airnote-back-to-life/3448)
**Author:** [@bradbarrish](https://discuss.blues.com/u/bradbarrish)\ **Replies:** 1\ **Last updated:** [February 8, 2026, 1:23am UTC](https://discuss.blues.com/t/need-help-bringing-airnote-back-to-life/3448 "2026-02-08T01:23:03Z")
I just noticed that my Airnote seems to be off and just need to know what to check or steps I can try to bring it back to life. I’m a fairly technical layperson and am comfortable opening up electronics, light soldering,… --- ## [Limit on message body size?](https://discuss.blues.com/t/limit-on-message-body-size/1534)
**Author:** [@rlkeith](https://discuss.blues.com/u/rlkeith)\ **Replies:** 10\ **Last updated:** [February 5, 2026, 11:46pm UTC](https://discuss.blues.com/t/limit-on-message-body-size/1534 "2026-02-05T23:46:20Z")
Hi All, I am trying to send messages to the Notecard via the serial port. It works fine when the body is 1 kB or a bit over, but the message I am trying to send is about 2,100 bytes. When I send that I get an error: { … --- ## [I2C verification errors in Arduino IDE for MKR Boards](https://discuss.blues.com/t/i2c-verification-errors-in-arduino-ide-for-mkr-boards/3442)
**Author:** [@Dexterg](https://discuss.blues.com/u/Dexterg)\ **Replies:** 3\ **Last updated:** [February 2, 2026, 9:53pm UTC](https://discuss.blues.com/t/i2c-verification-errors-in-arduino-ide-for-mkr-boards/3442 "2026-02-02T21:53:50Z")
Hey I am consistently getting a compiler message when trying to use the basic examples in the Blues Wireless Notecard library 1.83 in Arduino IDE desktop and in the Arduino cloud, messages are the same. Target device … --- ## [Card.voltage V+ and voltage-sensitive settings](https://discuss.blues.com/t/card-voltage-v-and-voltage-sensitive-settings/3440)
**Author:** [@devElert](https://discuss.blues.com/u/devElert)\ **Replies:** 2\ **Last updated:** [February 2, 2026, 4:25pm UTC](https://discuss.blues.com/t/card-voltage-v-and-voltage-sensitive-settings/3440 "2026-02-02T16:25:06Z")
The API for card.voltage mentions Provides the current V+ voltage level on the Notecard, and provides information about historical voltage trends. When used with the mode argument, configures voltage thresholds based o… --- ## [Clarification on DFU binpacks for mcuboot](https://discuss.blues.com/t/clarification-on-dfu-binpacks-for-mcuboot/3437)
**Author:** [@scase](https://discuss.blues.com/u/scase)\ **Replies:** 3\ **Last updated:** [February 2, 2026, 3:32pm UTC](https://discuss.blues.com/t/clarification-on-dfu-binpacks-for-mcuboot/3437 "2026-02-02T15:32:12Z")
I’m troubleshooting an issue related to DFU failures using the mcuboot bootloader, and I wanted to ask a clarifying question: When I follow the steps outline here to build the project and use the Notecard CLI to create … --- ## [COBS: off-by one error with encoding/decoding lengths](https://discuss.blues.com/t/cobs-off-by-one-error-with-encoding-decoding-lengths/3435)
**Author:** [@devElert](https://discuss.blues.com/u/devElert)\ **Replies:** 3\ **Last updated:** [January 30, 2026, 7:31pm UTC](https://discuss.blues.com/t/cobs-off-by-one-error-with-encoding-decoding-lengths/3435 "2026-01-30T19:31:06Z")
Hi Blues team! I ran into a subtle issue with the COBS codec length functions that causes max\_decoded\_length(max\_encoded\_length(X)) to sometimes return X - 1 instead of X. The issue: When X = 65536: NoteBinaryCodec… --- ## [IAP DFU with card.binary?](https://discuss.blues.com/t/iap-dfu-with-card-binary/3433)
**Author:** [@devElert](https://discuss.blues.com/u/devElert)\ **Replies:** 8\ **Last updated:** [January 28, 2026, 9:20pm UTC](https://discuss.blues.com/t/iap-dfu-with-card-binary/3433 "2026-01-28T21:20:06Z")
We currently have a solution that uses ~inboard DFU~ (edit: IAP) for firmware updates. While NOFU/ISP is also supported (for bootloader changes/partition resizes), we generally prefer IAP updates because of the possibili… --- ## [Problem with note.add request](https://discuss.blues.com/t/problem-with-note-add-request/3338)
**Author:** [@fbt1](https://discuss.blues.com/u/fbt1)\ **Replies:** 5\ **Last updated:** [January 28, 2026, 2:03pm UTC](https://discuss.blues.com/t/problem-with-note-add-request/3338 "2026-01-28T14:03:09Z")
Hi, I’m trying to use note.add request with the max argument combined with "sync":true in order to automatically trigger a sync when the number of pending notes matches the max value. However, the behavioral i’m obtaini… --- ## [Solar Charge Indicator](https://discuss.blues.com/t/solar-charge-indicator/3427)
**Author:** [@gomario2](https://discuss.blues.com/u/gomario2)\ **Replies:** 5\ **Last updated:** [January 27, 2026, 11:28pm UTC](https://discuss.blues.com/t/solar-charge-indicator/3427 "2026-01-27T23:28:46Z")
Really didn’t want to ask because it appears this has been answered in various questions . I need to know if my battery is being charged or not. I have aux\_charging pin (pin 8 CHG ) connected to the notecard aux\_chargi… --- ## [Latest version of Wifi Notecard , unstable power](https://discuss.blues.com/t/latest-version-of-wifi-notecard-unstable-power/3422)
**Author:** [@stewartm](https://discuss.blues.com/u/stewartm)\ **Replies:** 8\ **Last updated:** [January 27, 2026, 8:57pm UTC](https://discuss.blues.com/t/latest-version-of-wifi-notecard-unstable-power/3422 "2026-01-27T20:57:06Z")
The last two wifi notecards I recieved constanly brownout and reset when connected to the same battery setup as an older wifi card. If I connect a USB power supply they will/may remain stable for a short time. One beca… --- ## [Introducing Blues Notecarrier CX - Carrier and Host MCU in One Board](https://discuss.blues.com/t/introducing-blues-notecarrier-cx-carrier-and-host-mcu-in-one-board/3439)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [January 27, 2026, 3:58pm UTC](https://discuss.blues.com/t/introducing-blues-notecarrier-cx-carrier-and-host-mcu-in-one-board/3439 "2026-01-27T15:58:35Z")
Learn more about the new Notecarrier CX, featuring a user-addressable onboard STM32L433 MCU. Read the full blog post at https://blues.dev/blog/introducing-notecarrier-cx and continue the discussion here. --- ## [Starnote for Skylo unreliable](https://discuss.blues.com/t/starnote-for-skylo-unreliable/3429)
**Author:** [@rberkelm](https://discuss.blues.com/u/rberkelm)\ **Replies:** 8\ **Last updated:** [January 21, 2026, 3:49pm UTC](https://discuss.blues.com/t/starnote-for-skylo-unreliable/3429 "2026-01-21T15:49:37Z")
Hi guys After more than a year, Starnote for Skylo continues to frustrate with erratic and unreliable communication. I keep thinking this product is only one FW update away from working “properly”, but even now, with al… --- ## [ATTN pin fires for inbound notes, but not for environment changes or async web.\* requests](https://discuss.blues.com/t/attn-pin-fires-for-inbound-notes-but-not-for-environment-changes-or-async-web-requests/3431)
**Author:** [@devElert](https://discuss.blues.com/u/devElert)\ **Replies:** 4\ **Last updated:** [January 20, 2026, 11:21pm UTC](https://discuss.blues.com/t/attn-pin-fires-for-inbound-notes-but-not-for-environment-changes-or-async-web-requests/3431 "2026-01-20T23:21:29Z")
Summary I’ve discovered that the ATTN pin does not fire when environment variables are changed in Notehub, even when configured with \`mode: “arm,env,files”\`. The ATTN pin works correctly for inbound commands (\`command.qi… --- ## [A way to not propagate certain env vars to devices?](https://discuss.blues.com/t/a-way-to-not-propagate-certain-env-vars-to-devices/3434)
**Author:** [@devElert](https://discuss.blues.com/u/devElert)\ **Replies:** 4\ **Last updated:** [January 20, 2026, 10:20pm UTC](https://discuss.blues.com/t/a-way-to-not-propagate-certain-env-vars-to-devices/3434 "2026-01-20T22:20:18Z")
Some of the HTTP and proxy routes we have use access tokens in HTTP headers, which will be rotated routinely. I understand we can use \[$ENV\_VAR\] syntax to substitute environment variables in the header value. However, t… --- ## [Note-arduino and ESP32 serial with custom pins](https://discuss.blues.com/t/note-arduino-and-esp32-serial-with-custom-pins/2438)
**Author:** [@devElert](https://discuss.blues.com/u/devElert)\ **Replies:** 12\ **Last updated:** [January 20, 2026, 9:04pm UTC](https://discuss.blues.com/t/note-arduino-and-esp32-serial-with-custom-pins/2438 "2026-01-20T21:04:28Z")
We recently had to switch our project from using I2C to using serial for communicating with the Notecard. Naturally, I anticipated this would be pretty straightforward, but unfortunately that was far from the experience… --- ## [Detecting Inactive Devices With Notehub Smart Fleets](https://discuss.blues.com/t/detecting-inactive-devices-with-notehub-smart-fleets/3436)
**Author:** [@BluesDevRel](https://discuss.blues.com/u/BluesDevRel)\ **Replies:** 0\ **Last updated:** [January 20, 2026, 7:10pm UTC](https://discuss.blues.com/t/detecting-inactive-devices-with-notehub-smart-fleets/3436 "2026-01-20T19:10:39Z")
Learn a workflow for automatically sorting inactive devices into a custom Notehub fleet Read the full blog post at https://blues.dev/blog/inactive-devices-smart-fleets and continue the discussion here. --- ## [Notecard could not connect](https://discuss.blues.com/t/notecard-could-not-connect/3430)
**Author:** [@Laurent](https://discuss.blues.com/u/Laurent)\ **Replies:** 1\ **Last updated:** [January 16, 2026, 5:44pm UTC](https://discuss.blues.com/t/notecard-could-not-connect/3430 "2026-01-16T17:44:50Z")
We have a notecard NBGL500 that works fine for months, and then could not connect anymore. The customer sends it back to us. We try to change the antenna without success, but changing the notecard works. We try to debug… --- ## [Does Notecard Cell+WiFi Failover to Cellular work in Minimum Mode?](https://discuss.blues.com/t/does-notecard-cell-wifi-failover-to-cellular-work-in-minimum-mode/3428)
**Author:** [@Karl\_iWell](https://discuss.blues.com/u/Karl_iWell)\ **Replies:** 2\ **Last updated:** [January 15, 2026, 2:59pm UTC](https://discuss.blues.com/t/does-notecard-cell-wifi-failover-to-cellular-work-in-minimum-mode/3428 "2026-01-15T14:59:31Z")
Can anyone confirm that the Notecard Cell+WiFi will failover from WiFi cellular when in minimum mode? I put a WBNAW Notecard in our existing solution, added the card.wifi call to specify the ssid and password. Everyth… [Previous page](https://discuss.blues.com/latest.md?page=3) [Next page](https://discuss.blues.com/latest.md?page=5)