JK_B2A20S20P unable to locate MAC address or connect via BT

[austin202220]

JK_B2A20S20P
Hardware: V11.XW
Software: V11.24H
Version: V4.10.1

I am lost... trying to connect via bluetooth. - theres no need to connect the uart rx and tx pins to the esp32 when connecting via bluetooth right??

When I review the logs I just get the following over and over in yellow text:

[17:14:42][W][jk_bms_ble:362]: [F0:00:FF:C2:04:51] Not connected

I never get any other devices listed and have not been able to locate the mac address of the BMS. I can connect to it on my iPhone no problem.

[syssi]

If you talk using BLE to the BMS no cables between the BMS and the ESP32 are required. Please change the log_level from INFO to DEBUG and flash the ESP again. This time you should see a list of visible BLE devices on boot-up. If there are none the BLE stack of your ESP is probably damaged.

[austin202220]

Than you @syssi for your help and all you have done! Unfortunately I never was able to get it to work to find the mac address that way the other thread describes.

I ended up going to home assistant terminal and entering in the command "bluetoothctl devices" and eventually got it to show on there.

I'm posting a screenshot just in case anyone else stumbles into this later on maybe it will offer a 2nd way to get it for them too. I spy the JK in the list

[austin202220]

Oh also, on this model I have a newer software version than what is listed in the supported list. So I can confirm that the JK_B2A20S20P with Software V11.24H is working great over bluetooth if you want to add it

[syssi]

Done: 75b27cb

[syssi]

@austin202220 Please use protocol version JK02_32S here and avoid the auto-detection of the new (JK02_32S) frames because it's unstable.