# Notecarrier A

**URL:** https://discuss.blues.com/c/hardware/notecarrier-a/22.md

[Latest](https://discuss.blues.com/latest.md) · [Categories](https://discuss.blues.com/categories.md) · [Tags](https://discuss.blues.com/tags.md)

---

## [About the Notecarrier A category](https://discuss.blues.com/t/about-the-notecarrier-a-category/1375)

<div class="topic-metadata">

**Author:** [@RobLauer](https://discuss.blues.com/u/RobLauer)\
**Replies:** 0

</div>

Use this category for questions about the Notecarrier A.

---

## [External GPS modules not locking satellites via Notecard AUX UART](https://discuss.blues.com/t/external-gps-modules-not-locking-satellites-via-notecard-aux-uart/3180)

<div class="topic-metadata">

**Author:** [@ghack9293](https://discuss.blues.com/u/ghack9293)\
**Replies:** 5\
**Last updated:** [July 23, 2025, 1:53pm UTC](https://discuss.blues.com/t/external-gps-modules-not-locking-satellites-via-notecard-aux-uart/3180 "2025-07-23T13:53:05Z")

</div>

Hi Blues team, I’m trying to use the Notecard for continuous GPS tracking with external GPS modules connected to the AUX UART. I tested both: Quescan G10A-F30 M10 GPS Beitian BN-180 GPS In both cases: Baud rate is…

---

## [Orientation Change Triggers Tracking](https://discuss.blues.com/t/orientation-change-triggers-tracking/2992)

<div class="topic-metadata">

**Author:** [@DSKUP](https://discuss.blues.com/u/DSKUP)\
**Replies:** 3\
**Last updated:** [April 17, 2025, 3:37pm UTC](https://discuss.blues.com/t/orientation-change-triggers-tracking/2992 "2025-04-17T15:37:17Z")

</div>

Hi there, I’m experimenting with using Notecarrier A as an anti-theft component within outdoor security cameras. Basically I’m trying to track the location of the camera itself, should it be stolen along with the asset…

---

## [Accuracy of Reported Voltage](https://discuss.blues.com/t/accuracy-of-reported-voltage/2464)

<div class="topic-metadata">

**Author:** [@DSKUP](https://discuss.blues.com/u/DSKUP)\
**Replies:** 5\
**Last updated:** [December 3, 2024, 4:41pm UTC](https://discuss.blues.com/t/accuracy-of-reported-voltage/2464 "2024-12-03T16:41:18Z")

</div>

Hi there. I recently acquired my first few Note Cards and have begun experimenting with them. I have two devices, 1) a Note-NBNAN on Carrier A, and 2) Note-NBNAN on Carrier X… no other hardware. Both have an attached …

---

## [Gps: unable to refresh after 90 sec (no signal)](https://discuss.blues.com/t/gps-unable-to-refresh-after-90-sec-no-signal/2300)

<div class="topic-metadata">

**Author:** [@gomario2](https://discuss.blues.com/u/gomario2)\
**Replies:** 1\
**Last updated:** [August 27, 2024, 1:35pm UTC](https://discuss.blues.com/t/gps-unable-to-refresh-after-90-sec-no-signal/2300 "2024-08-27T13:35:08Z")

</div>

Hi I’m using a notecarrier A w/ built in antennas. I have the board outside on a table full view to sky but I get this message : “text”: “gps: unable to refresh after 90 sec (no signal)” No host MCU, I have the card …

---

## [Brown-outs Despite Healthy Batteries](https://discuss.blues.com/t/brown-outs-despite-healthy-batteries/2259)

<div class="topic-metadata">

**Author:** [@andyzhao](https://discuss.blues.com/u/andyzhao)\
**Replies:** 3\
**Last updated:** [August 7, 2024, 1:38pm UTC](https://discuss.blues.com/t/brown-outs-despite-healthy-batteries/2259 "2024-08-07T13:38:11Z")

</div>

Hello all! I’ve recently ran a test following the model provided in Global Asset Tracking with a Cellular Notecard and Datacake on three Notecarrier-A’s. However, there were some issues the cards seem to be having, and …

---

## [Notecarrier A I2C Issues](https://discuss.blues.com/t/notecarrier-a-i2c-issues/2220)

<div class="topic-metadata">

**Author:** [@gomario2](https://discuss.blues.com/u/gomario2)\
**Replies:** 2\
**Last updated:** [July 24, 2024, 4:47pm UTC](https://discuss.blues.com/t/notecarrier-a-i2c-issues/2220 "2024-07-24T16:47:19Z")

</div>

I have a Notecarrier A 2.0 which I have connected to a mcu host ( esp32 ) using 3 wires: ground, sda and scl. Power to host and carrier are via their usb connectors. I’m unable to interrogate the notecard. If I move th…

---

## [Notecarrier-A grief](https://discuss.blues.com/t/notecarrier-a-grief/2241)

<div class="topic-metadata">

**Author:** [@datalogger](https://discuss.blues.com/u/datalogger)\
**Replies:** 2\
**Last updated:** [July 24, 2024, 1:53pm UTC](https://discuss.blues.com/t/notecarrier-a-grief/2241 "2024-07-24T13:53:18Z")

</div>

I have some problems with the Notecarrier-A, that should be easy to solve. As you can see in the attached image, the antenna cable for the main antenna is too short. This really puts stress on the small connectors. I…

---

## [Blues Sparrow connected to Notecarrier - Brownout](https://discuss.blues.com/t/blues-sparrow-connected-to-notecarrier-brownout/2064)

<div class="topic-metadata">

**Author:** [@arjunnair](https://discuss.blues.com/u/arjunnair)\
**Replies:** 1\
**Last updated:** [April 14, 2024, 2:38pm UTC](https://discuss.blues.com/t/blues-sparrow-connected-to-notecarrier-brownout/2064 "2024-04-14T14:38:56Z")

</div>

Hi, I have been trying to use my Sparrow to send a note over I2C with the Notecard WiFi, but I keep getting brownout messages after having first sync, as shown below. {“why”:“first sync; continuous connection mode; pe…

---

## [Missing Request In Documents](https://discuss.blues.com/t/missing-request-in-documents/1787)

<div class="topic-metadata">

**Author:** [@yldzmuhammed](https://discuss.blues.com/u/yldzmuhammed)\
**Replies:** 1\
**Last updated:** [November 17, 2023, 7:44pm UTC](https://discuss.blues.com/t/missing-request-in-documents/1787 "2023-11-17T19:44:58Z")

</div>

Hello everyone. This is my very first post. Thank you guys for making this nice device. I was playing with it and I realized something. I hope I am not missing anything. I was looking for a way to see what is going on…

---

## [NoteCarrier-A compatibility?](https://discuss.blues.com/t/notecarrier-a-compatibility/1760)

<div class="topic-metadata">

**Author:** [@JimM](https://discuss.blues.com/u/JimM)\
**Replies:** 3\
**Last updated:** [November 12, 2023, 8:57pm UTC](https://discuss.blues.com/t/notecarrier-a-compatibility/1760 "2023-11-12T20:57:16Z")

</div>

I have a NoteCard version 1.5 (firmware 4.4.1.4015700) that will not power on with NoteCarrier-A version 2.0, but works fine with NoteCarrier-A version 1.7. Is this a compatibility issue, or just an issue with my NoteC…

---

## [Arduino api create note](https://discuss.blues.com/t/arduino-api-create-note/1614)

<div class="topic-metadata">

**Author:** [@rksteeves](https://discuss.blues.com/u/rksteeves)\
**Replies:** 8\
**Last updated:** [September 20, 2023, 6:25am UTC](https://discuss.blues.com/t/arduino-api-create-note/1614 "2023-09-20T06:25:22Z")

</div>

I have been successful in creating a note with a simple program that creates a note using. I copied the create note function to a larger program that does some other things: initialize the card arm an interrupt for in …

---

## [Power outage detector with full power loss including battery](https://discuss.blues.com/t/power-outage-detector-with-full-power-loss-including-battery/961)

<div class="topic-metadata">

**Author:** [@rksteeves](https://discuss.blues.com/u/rksteeves)\
**Replies:** 1\
**Last updated:** [August 31, 2022, 6:27pm UTC](https://discuss.blues.com/t/power-outage-detector-with-full-power-loss-including-battery/961 "2022-08-31T18:27:36Z")

</div>

I dont have my note carrier A board yet, but I was curious to understand the code for the Outage detector. Given the code is entered directly into the notehub, if all power is lost (including battery backup) does the cod…

---

## [Notecarrier not fully charging Lipo battery](https://discuss.blues.com/t/notecarrier-not-fully-charging-lipo-battery/836)

<div class="topic-metadata">

**Author:** [@NathanJC](https://discuss.blues.com/u/NathanJC)\
**Replies:** 1\
**Last updated:** [May 24, 2022, 12:16am UTC](https://discuss.blues.com/t/notecarrier-not-fully-charging-lipo-battery/836 "2022-05-24T00:16:56Z")

</div>

Hi there! I’m currently trying to build an IoT device using the Notecarrier AL. Today, I have been looking into ensuring that the Lipo battery I am using is charging up properly. I am using a 3.7V 1800mAh battery with a…

---

## [Notecard Watchdog triggering prematurely](https://discuss.blues.com/t/notecard-watchdog-triggering-prematurely/830)

<div class="topic-metadata">

**Author:** [@NathanJC](https://discuss.blues.com/u/NathanJC)\
**Replies:** 0\
**Last updated:** [May 16, 2022, 7:06am UTC](https://discuss.blues.com/t/notecard-watchdog-triggering-prematurely/830 "2022-05-16T07:06:07Z")

</div>

Hi there, I’ve been looking into running a watchdog on the Notecard as insurance in case my host processor (ESP32-s2) locks up. I have connected the Notecard’s ATTN pin to the ESP32’s RST pin and have communication betw…

---

## [Unable to access GPS readings without turning on GPS](https://discuss.blues.com/t/unable-to-access-gps-readings-without-turning-on-gps/778)

<div class="topic-metadata">

**Author:** [@NathanJC](https://discuss.blues.com/u/NathanJC)\
**Replies:** 1\
**Last updated:** [April 14, 2022, 1:37pm UTC](https://discuss.blues.com/t/unable-to-access-gps-readings-without-turning-on-gps/778 "2022-04-14T13:37:22Z")

</div>

I have been trying to work on a GPS tracking system for an IoT device I’m developing. I am using an ESP32 as a host controller and I have been using an external GPS set up on the Notecard’s AUX pins. Today, I noticed tha…

---

## [Unable to use attn pin while watchdog active](https://discuss.blues.com/t/unable-to-use-attn-pin-while-watchdog-active/429)

<div class="topic-metadata">

**Author:** [@NathanJC](https://discuss.blues.com/u/NathanJC)\
**Replies:** 0\
**Last updated:** [September 27, 2021, 6:36am UTC](https://discuss.blues.com/t/unable-to-use-attn-pin-while-watchdog-active/429 "2021-09-27T06:36:56Z")

</div>

Hi there, Is it possible to use the AL-carrier to run a watchdog and an attn interrupt on file change? I am currently using an ESP32-s2 as a host. I would like to be able to wake it from light sleep upon receiving a re…
