Recently Arduino team also added this Lib in their Page as V 1.3.1 and 1.3.0 . I uploaded the Encrypted Battery Monitor Example in my Arduino Nano 33 BLE Sense nrf52840. First, the Numeric Comparison was done and 6 Digit Pin is passed to the mobile phone. By clicking Pair Button, it got disconnected. I also Checked the Scripts, am i missing something?? . Kindly someone help me here. Does Arduino BLE Sense Supports Pairing Process???

Also Adafruit BLE lib (BlueFruit52) also Contains Pairing Examples.
https://github.com/adafruit/Adafruit_nRF52_Arduino/tree/master/libraries/Bluefruit52Lib/examples/Peripheral/pairing_passkey

But Why Arduino is lagging to give a pairing Example but Adafruit already gave Pairing Examples in their Lib.