Bluetooth classic serial connection PIN provided but pairing is without PIN

[Adminius]

Hardware:

Board: ESP32 WEMOS D1 MINI
Core Installation version: 1.0.4
IDE name: Arduino IDE
Flash Frequency: 80Mhz
PSRAM enabled: no
Upload Speed: 115200
Computer OS: Windows 10

Description:

After flashing: Smartphone sees "ESP32test" asking if I would like to connect and it connects without asking for a PIN (tried different PINs with different length)

Expectation: Smartphone asks for PIN and connects after user inputs a correct PIN code

Sketch:

Using example sketch:
https://github.com/espressif/arduino-esp32/blob/master/libraries/BluetoothSerial/examples/SerialToSerialBTM/SerialToSerialBTM.ino
but with activated SerialBT.setPin(pin); (before or after SerialBT.begin is doesn't matter) and changed pin:

char *pin = "555555"; 
...
SerialBT.begin("ESP32test", true); 
SerialBT.setPin(pin);

Debug Messages:

[I][BluetoothSerial.cpp:510] _init_bt(): device name set
The device started in master mode, make sure remote BT device is on!
[I][BluetoothSerial.cpp:225] esp_spp_cb(): ESP_SPP_INIT_EVT
[I][BluetoothSerial.cpp:702] connect(): master : remoteName
[I][BluetoothSerial.cpp:379] esp_bt_gap_cb(): ESP_BT_GAP_DISC_STATE_CHANGED_EVT
[I][BluetoothSerial.cpp:327] esp_bt_gap_cb(): ESP_BT_GAP_DISC_RES_EVT
[I][BluetoothSerial.cpp:329] esp_bt_gap_cb(): Scanned device: cc:21:19:94:5b:be
[I][BluetoothSerial.cpp:336] esp_bt_gap_cb(): ESP_BT_GAP_DISC_RES_EVT : EIR : Galaxy S10e : 11
[I][BluetoothSerial.cpp:327] esp_bt_gap_cb(): ESP_BT_GAP_DISC_RES_EVT
[I][BluetoothSerial.cpp:329] esp_bt_gap_cb(): Scanned device: cc:21:19:94:5b:be
[I][BluetoothSerial.cpp:336] esp_bt_gap_cb(): ESP_BT_GAP_DISC_RES_EVT : EIR : Galaxy S10e : 11
[I][BluetoothSerial.cpp:327] esp_bt_gap_cb(): ESP_BT_GAP_DISC_RES_EVT
[I][BluetoothSerial.cpp:329] esp_bt_gap_cb(): Scanned device: cc:21:19:94:5b:be
[I][BluetoothSerial.cpp:336] esp_bt_gap_cb(): ESP_BT_GAP_DISC_RES_EVT : EIR : Galaxy S10e : 11
[I][BluetoothSerial.cpp:327] esp_bt_gap_cb(): ESP_BT_GAP_DISC_RES_EVT
[I][BluetoothSerial.cpp:379] esp_bt_gap_cb(): ESP_BT_GAP_DISC_STATE_CHANGED_EVT
[I][BluetoothSerial.cpp:379] esp_bt_gap_cb(): ESP_BT_GAP_DISC_STATE_CHANGED_EVT
[V][BluetoothSerial.cpp:392] esp_bt_gap_cb(): authentication success: Galaxy S10e
Connected Succesfully!
[I][BluetoothSerial.cpp:742] connect(): master : remoteName
[I][BluetoothSerial.cpp:379] esp_bt_gap_cb(): ESP_BT_GAP_DISC_STATE_CHANGED_EVT
[I][BluetoothSerial.cpp:327] esp_bt_gap_cb(): ESP_BT_GAP_DISC_RES_EVT
[I][BluetoothSerial.cpp:329] esp_bt_gap_cb(): Scanned device: cc:21:19:94:5b:be

[cjcr]

Confirmed. The pin doesn't work as it should.

[ketan]

Can confirm. This example seems to have commented out the setPin method. It does not work as expected.

[stale]

[STALE_SET] This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 14 days if no further activity occurs. Thank you for your contributions.

[Adminius]

Any news?

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[STALE_CLR] This issue has been removed from the stale queue. Please ensure activity to keep it openin the future.

[juniorradu]

Same problem here. Any solution? Version 1.0.5

[Gcopper22]

Hello, a lot of people also me, we are trying to find an option to set static PIN on Bluetooth classic serial connection when pairing. A way to input custom PIN not the default 123456.An old way was created for 1.0.1 version adding a custom libbt.a file that was disabling ssp as far as i know .We want to be able to have this option on newer versions. I'll appreciate anyone who really want to help

[ketan]

Same here. It is unclear what the change was in that particular file, that allowed it to work. Can the original author, please mention the change they had to make, if they still have it with them? Thanks

…

On Thu, Apr 1, 2021, 13:21 hulktech ***@***.***> wrote: Hello, a lot of people also me, we are trying to find an option to set static PIN on Bluetooth classic serial connection when pairing. A way to input custom PIN not the default 123456.An old way was created for 1.0.1 version adding a custom libbt.a file that was disabling ssp as far as i know .We want to be able to have this option on newer versions. I'll appreciate anyone who really want to help — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#4566 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAACSZTI6FMKRUWSOKETM63TGQQWVANCNFSM4UACGEIA> .

[stale]

[STALE_SET] This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 14 days if no further activity occurs. Thank you for your contributions.

[Adminius]

push

[stale]

[STALE_CLR] This issue has been removed from the stale queue. Please ensure activity to keep it openin the future.