Connecting a new Bluetooth device without monitor?

Question

We are trying to connect a Bluetooth device without a passkey and trusting default yes in Python.

I am running a headless Raspberry PI 3, and I want it to automatically accept pairings from any device.

I saw this answer in an identical question:

But it seems to be a bit outdated and some of the used commands don't seem to exist. enter image description here

Which version of BlueZ are you using? Does it have to be python commands or is it OK to just use BlueZ commands directly? — Youssif Saeed, Mar 7, 2019 at 6:54
"some of the used commands don't seem to exist" - which ones specifically? — Dmitry Grigoryev, Mar 7, 2019 at 9:36
Can you try doing this using normal BlueZ command line tools first? You can run 'btmgmt bondable on' to set your device to be pairable/bondable, then 'btmgmt io-cap 3' to set your IO capabilities to NoInput/NoOutput. After that, test that your raspberry pi accepts incoming pairing without requiring a passkey and see if it works. If this fails, please post the error message that you are getting. — Youssif Saeed, Mar 7, 2019 at 22:02

clockw0rk · Accepted Answer · 2019-07-04 13:03:54Z

1

To pair type pair xx:xx:xx:xx:xx:xx where xx:xx:xx:xx:xx:xx is your BD address of the 
device you want to pair
Next type trust xx:xx:xx:xx:xx:xx

You should read the full thread from the link, this can help you.

Basicly the idea is to pair bluetooth device without user gui.

[The raspberry is much faster without a Desktop envoirement]

answered Jul 4, 2019 at 13:03

clockw0rk

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