nRF52832 downgrade from BT 4.2 to 4.0 or 3.0 ?

[Olga Ermakova]

there is a module in the skylab project on the nRF52832 chip and it does not agree with the tablet, which is old BT. Is it possible, through the firmware or SDK, to downgrade version 4.2 / 5 to version BT 3.0 or BT 4.0 on this module, chip?

[Einar Thorsrud]

Hi,

The nRF52832 is a Bluetooth Low Energy device. It is not capable of Bluetooth Classic, as that requires a completely different radio. Regarding specific versions, it does not matter much if it is 4.0 or higher (that is when BLE was introduced), as virtually all new features are optional and only used if both peers support them.