# Code on display

**URL:** <https://discuss.blues.com/t/code-on-display/1418>\
**Category:** Airnote\
**Created:** [May 23, 2023, 4:53am UTC](https://discuss.blues.com/t/code-on-display/1418 "2023-05-23T04:53:53Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![robouden](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/robouden/32/336_2.png) [@robouden](https://discuss.blues.com/u/robouden)\
**Post date:** [May 23, 2023, 4:53am UTC](https://discuss.blues.com/t/code-on-display/1418/1 "2023-05-23T04:53:53Z")

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I am reviving an old airnote and do get (after the counting at startup goes up from 5 to about 21 a) an error code of -100 and the :CL.

Wondering if there is a document online with all the error codes of the Airnote?

Warm regards,  
Rob Oudendijk

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**Author:** ![RobLauer](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/roblauer/32/1567_2.png) [@RobLauer](https://discuss.blues.com/u/RobLauer)\
**Post date:** [May 23, 2023, 1:20pm UTC](https://discuss.blues.com/t/code-on-display/1418/2 "2023-05-23T13:20:00Z")

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Hi @robouden,

Here are the self-test steps taken when an Airnote is powered on:

```auto
Power-on begins self-test:
5 seconds of all segments
  LOBAT +1.8 (colon and dot) 8.8  
device ID scrolling horizontally
voltage(V)
temp(C)
humidity(%)
pressure(Pa)
air particle counter down-count (5->1 if air sensor)
if failure, a negative status code is displayed
    -1xx BME280 OK
    -2xx BME280 temperature failure
    -3xx BME280 humidity failure
    -4xx BME280 pressure failure
    -5xx BME280 general failure
    -x0x Air Particle Counter not detected
    -x1x Air Particle Counter OK
    -999 Airnote Configuration Error
if success
   Device Identifier (same as on QR code label) is scrolled-by
   "Go" is displayed, indicating success

```

So a `-100` means the BME280 was found ok, but the Air Particle Counter (PMS7003M) was not detected.

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<div class="post-metadata">

**Author:** ![robouden](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/robouden/32/336_2.png) [@robouden](https://discuss.blues.com/u/robouden)\
**Post date:** [May 24, 2023, 2:58am UTC](https://discuss.blues.com/t/code-on-display/1418/3 "2023-05-24T02:58:23Z")

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Rob,

Thanks, I will check a bit more and report back.  
BTW, is there a document for the error code online?

Warm regards,  
Rob Oudendijk

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**Author:** ![robouden](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/robouden/32/336_2.png) [@robouden](https://discuss.blues.com/u/robouden)\
**Post date:** [May 24, 2023, 8:20am UTC](https://discuss.blues.com/t/code-on-display/1418/4 "2023-05-24T08:20:32Z")

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Rob,

Checked a lot more and seem the notecard itself has issues. I tested it with another notecard I have, and the modem connects fine. Attached is the log file.

Regards,  
rob  
[notecard\_2023-05-24T08\_02\_34.log](https://discuss.blues.com/uploads/short-url/n1Hz9bHkJWQzu1UIbTHD7MVpn9Y.log) (3.7 KB)

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<div class="post-metadata">

**Author:** ![RobLauer](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/roblauer/32/1567_2.png) [@RobLauer](https://discuss.blues.com/u/RobLauer)\
**Post date:** [May 24, 2023, 4:45pm UTC](https://discuss.blues.com/t/code-on-display/1418/5 "2023-05-24T16:45:53Z")

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Hi @robouden,

Can you try removing and re-seating the Notecard? Though if you’re telling me that it isn’t working in the Airnote nor in a Notecarrier it sounds like it has a bigger problem. Just to clarify, you aren’t using an external SIM with this, correct?

Thanks,  
Rob

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<div class="post-metadata">

**Author:** ![robouden](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/robouden/32/336_2.png) [@robouden](https://discuss.blues.com/u/robouden)\
**Post date:** [May 28, 2023, 12:39pm UTC](https://discuss.blues.com/t/code-on-display/1418/6 "2023-05-28T12:39:24Z")

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Rob,

Not using an external SIM. I tried, but no luck.  
Seems the airnote has two issues. One is the notecard has not deviceUID and one is a probably broken PMS.

Working on troubleshooting with Ray.

Regards,  
Rob Oudendijk