# BC127 inquiry pair **URL:** \ **Category:** WiFi and Bluetooth Modules\ **Created:** [September 18, 2018, 11:35am UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886 "2018-09-18T11:35:06Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![fred128](https://avatars.discourse-cdn.com/v4/letter/f/ce7236/32.png) [@fred128](https://forum.sierrawireless.com/u/fred128)\ **Post date:** [September 18, 2018, 11:35am UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886/1 "2018-09-18T11:35:06Z")
Hello, I would like to know if there is a way to auto connect/pair with the most high inquiry value device at startup with an empty pdl? thank you ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [September 18, 2018, 1:37pm UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886/2 "2018-09-18T13:37:26Z")
@fred128, When you say the most high inquiry device what do you mean? The one that is broadcasting the most often? If so then there is no way for the unit to easily determine what this is as it is luck as to when the unit will see it. Also the unit will only automatically reconnect to a device it has previously connected to (assuming you have autoconn set to 1). After this it has to be commanded to connect to something or something has to connect to it. Regards Matt ---
**Author:** ![fred128](https://avatars.discourse-cdn.com/v4/letter/f/ce7236/32.png) [@fred128](https://forum.sierrawireless.com/u/fred128)\ **Post date:** [September 18, 2018, 3:01pm UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886/3 "2018-09-18T15:01:50Z")
Thank you for your reply. I mean, the device which has the higher dB level when an inquiry is performed. But you say it has to be in the paired device list if I want an autoconnection?, or I have to send a command? In this case, I have an other question : I set autoconn and the remote\_addr for my device to be reconnect to, but when I send get remote\_addr, the address is a little different : af20123456789 become af20123467890005 or something like that. I can’t get auto reconnect to this address. Is it a format problem? thank you ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [September 18, 2018, 4:04pm UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886/4 "2018-09-18T16:04:02Z")
@fred128, So if the unit can see a device when it has powered on with autoconn set to 1 then it will automatically connect to it, it will connect to devices in the order that they are in the list. For the second question you are going to need to give me a log file showing the initial pairing and the subsequent power up with the Also if you can send the below commands in addition to the commands needed for the sequence that would give me a base to figure out what you might be seeing. ``` version status config list ``` Regards Matt ---
**Author:** ![fred128](https://avatars.discourse-cdn.com/v4/letter/f/ce7236/32.png) [@fred128](https://forum.sierrawireless.com/u/fred128)\ **Post date:** [September 18, 2018, 5:46pm UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886/5 "2018-09-18T17:46:16Z")
Thank you. I can’t do it now but I will send you what you need tomorrow. In the mean time, is it enough to set autoconn=2 and remote\_address=BTAddress? Or the BTAdress has to be in the list of paired devices? thanks ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [September 19, 2018, 10:11am UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886/6 "2018-09-19T10:11:27Z")
@fred128, The unit has to be in the list of paired devices so that the have previously exchanged keys for the link to be secure. Regards Matt ---
**Author:** ![fred128](https://avatars.discourse-cdn.com/v4/letter/f/ce7236/32.png) [@fred128](https://forum.sierrawireless.com/u/fred128)\ **Post date:** [September 19, 2018, 10:54am UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886/7 "2018-09-19T10:54:17Z")
Hello, Here the log: > set remote\_addr=20FABB044832 > OK > write > OK > get remote\_addr > REMOTE\_ADDR=20FABB48320004 > OK version : > Sierra Wireless Copyright 2018 > Melody Audio V7.2 > Build: 1534785311 status : (also tried bt\_status\_config=0 0) > STATE CONNECTED[0] CONNECTABLE[ON] DISCOVERABLE[ON] BLE[OFF] config : > AUDIO=0 0 > AUDIO\_ANALOG=15 15 1 OFF > AUDIO\_DIGITAL=0 44100 64 100A00 OFF > AUTOCONN=2 > AUTO\_DATA=OFF OFF > BALANCE=100 100 > BATT\_CONFIG=OFF 145 4250 1500 150 > BC\_SMART\_CONFIG=68E3 28F0 89F7 D93C ON > BEACON\_DATA=0 00 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF 04 D2 16 2E EE > BLE\_CONFIG=0 OFF 80 ON > BLE\_CONN\_PARAMS=128 12 24 40 0 400 100 400 400 64 400 400 > BT\_STATE\_CONFIG=1 1 > BT\_VOL\_CONFIG=A 60 10 1 > CLASS\_1=OFF > CMD\_TO=20 > COD=240404 > CODEC=6 OFF > DEEP\_SLEEP=OFF > DEVICE\_ID=0001 0002 0003 0004 0005 0006 0007 0008 > ENABLE\_BATT\_IND=ON > ENABLE\_LED=ON > ENABLE\_SPP\_SNIFF=OFF 0 0 0 0 0 > GPIO\_CONFIG=ON 0 > HFP\_CONFIG=OFF ON OFF OFF OFF OFF > HIGH\_SPEED=OFF OFF > LOCAL\_ADDR=20FABB0447FB 000000000000 > MAX\_REC=2 > MM=OFF OFF 0 OFF OFF OFF OFF OFF > MUSIC\_META\_DATA=OFF > MUSIC\_OLD\_AVRCP=OFF > NAME=BC-0447FB > NAME\_SHORT=BC0447FB > PIN=0000 > PROFILES=0 0 0 1 1 0 0 0 0 0 0 0 > REMOTE\_ADDR=20FABB48320004 > SPP\_UUID=00 00 11 01 00 00 10 00 80 00 00 80 5F 9B 34 FB > SSP\_CAPS=3 > TWS\_CONFIG=OFF 1 2 > UART\_CONFIG=9600 OFF 0 > USB\_HOST=OFF > VREG\_ROLE=1 list : > LIST 20FABB044832 A2DP AVRCP Otherwise, if I set autoconn=1, it connect automatically. thanks edit: if the device has to be in the pdl, the autoconn 2 is a little useless, as autoconn 1 is enough. But maybe someone needs that feature. In this case, is it possible to set a paired device list? I saw it was in connection library on pskey 45 but I don’t understand the format : 20fa bb04 4832 3401 0004 5008 96cd cb65 03dd 478a 6b87 ec2b dc81 edit2: I just saw that after a reset, the remote\_addr is removed, I get 000000000000 instead edit3: The autoconn 1 works when I run a reset, but if i reset the remote device, the autoconn doesn’t work and neither the autoconn from the remote device as the source become undiscoverable. ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [September 19, 2018, 11:56am UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886/8 "2018-09-19T11:56:46Z")
@fred128, I stand by my previous statements. - The unit needs to be connected to the device previously to auto connect to it again. - The unit will operate from the paired devices list and will connect in order. - You can cannot manually add devices to the unit for it to automatically connect to. Regards Matt ---
**Author:** ![fred128](https://avatars.discourse-cdn.com/v4/letter/f/ce7236/32.png) [@fred128](https://forum.sierrawireless.com/u/fred128)\ **Post date:** [September 19, 2018, 12:01pm UTC](https://forum.sierrawireless.com/t/bc127-inquiry-pair/13886/9 "2018-09-19T12:01:25Z")
Ok thank you, that’s clear now. There is only one thing left : With 2 device connected, when I turn off sink device, then turn on back, the source doesn’t reconnect automatically and seems to become undiscoverable. I have to turn off then on the source too. Is it the only way? thanks