First of all, you must ask questions in English only.STM32WB only supports BLE. ST does not have MCUs that support BT Classic.

I'm sorry. thanks for pointing out

int32_t rsi_dbm; uint32_t rssi_int16; uint32_t reg_agc; // extract the data rssi_int16 + agc rssi_int16 = ((rssi_level[0]) >> 16) & 0xFFFFU ; reg_agc = (rssi_level[1]) & 0xffU; // check if rssi is too low if((rssi_int16 == 0U)...