CYBT-353027-02 EZ-Serial firmware

[WaZh_4062111]

I am using the EZ-Serial firmware for this module and I'm having an issue where pairing connects to the BLE instead of BT-Classic. Is there anyway to disable BLE broadcast and pairing?

A second issue is that the BLE pairing shows A2DP option available when paired however I've looked through documentation and I cannot not find any reference to this service anywhere. Is there any way on disabling the A2DP function?

[AnjanaM_61]

Hello,

Not sure about disabling A2DP function.

For the pairing issue, could you please try referring to 3.6.1.4 Pairing with a random Passkey (BT Classic)  and 3.3 Cable Replacement Examples with SPP sections of user guide

https://www.cypress.com/documentation/software-and-drivers/ez-serial-ez-ble-module-firmware-platform

Thanks,

Anjana

[AnjanaM_61 · Accepted solution]

Hi

Regarding disabling A2DP : In next version, we will remove a2dp function or try set bt parameter with changing its device class, but there is no interface to disable it in current version.

Thanks,

Anjana

[WaZh_4062111]

Thank you for that information.

Upon further debugging, I realized that it is the BT classic that shows A2DP function and not BLE. However when connecting to an Android device, the connection randomly chooses between BT classic or BLE. I had assumed the A2DP function that showed up was part of BLE but I was incorrect in that assumption. On a windows PC, I am able to choose between different connections and found the A2DP on BT classic.

[AnjanaM_61]

Hi,

Yes, A2DP is on BT classic , not BLE.

Please refer to Ez-serial user guide for start advertise on BLE / BT

Thanks,
Anjana