# Decoding Packets

**URL:** <https://bbs.aprbrother.com/t/decoding-packets/1791>\
**Category:** BLE Gateway\
**Created:** [July 22, 2021, 6:56pm UTC](https://bbs.aprbrother.com/t/decoding-packets/1791 "2021-07-22T18:56:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tknman0700](https://bbs.aprbrother.com/user_avatar/bbs.aprbrother.com/tknman0700/32/494_2.png) [@tknman0700](https://bbs.aprbrother.com/u/tknman0700)\
**Post date:** [July 22, 2021, 6:56pm UTC](https://bbs.aprbrother.com/t/decoding-packets/1791/1 "2021-07-22T18:56:10Z")

</div>

When I look here:

[https://wiki.aprbrother.com/en/User\_Guide\_For\_AB\_BLE\_Gateway\_V4.html#keys](https://wiki.aprbrother.com/en/User_Guide_For_AB_BLE_Gateway_V4.html#keys)

I see that from the JSON format represented below this should be the BLE data.

1EFF060001092002777ACDC415F31A1E44173365CA8EF3BE9B5B36514522E8

![2021-07-22 13_48_58-Window](https://bbs.aprbrother.com/uploads/default/original/1X/cae4786ee6273a5e38cb513477c3ebe8dc55db91.png)

It looks like the data is:

060001092002777ACDC415F31A1E44173365CA8EF3BE9B5B36514522E8

Now that I have this what do I do with that? How can I make this into something I can make use of? Its not base64 so what am I to do with this raw advertising data to be able to read it? When I put it into advlib here [reelyActive advlib](https://reelyactive.github.io/advlib/) it doesnt seem to decode either.

Can anyone give direction decoding the data in the advert?  
Thanks

Thank you

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<div class="post-metadata">

**Author:** ![aprilpea](https://bbs.aprbrother.com/user_avatar/bbs.aprbrother.com/aprilpea/32/9_2.png) [@aprilpea](https://bbs.aprbrother.com/u/aprilpea)\
**Post date:** [July 24, 2021, 9:16pm UTC](https://bbs.aprbrother.com/t/decoding-packets/1791/2 "2021-07-24T21:16:07Z")

</div>

byte 0: 1E = length

byte 1: FF = indicates “MANUFACTURER\_SPECIFIC\_DATA”

byte 2 - 3: these two bytes are special company ID’s registered with the SIG. 0600 is for `iRobot Corporation`. see the ID in [bluetooth SIG page](https://www.bluetooth.com/specifications/assigned-numbers/company-identifiers/)

byte 4 - end: it’s manufacturer specific data

You should check the Core Specification in bluetooth SIG page for BLE advertising data.