How to enable the PASSKEY connection mode？

[a741725193]

Because some Bluetooth devices can only allow PASSKEY mode connection。

[jpconstantineau]

Since BlueMicro is based on the Adafruit nRF52 board support package, I suggest you bring this up to them as it would benefit a whole lot more people and will allow implementation within BlueMicro.

https://github.com/adafruit/Adafruit_nRF52_Arduino