set Pin
Set pin for default wristband and connection.
PIN code is string with numbers and length of 6.
It must be called when pin requested. Otherwise IllegalStateException will be emitted.
If PIN code is wrong then WrongPINCodeException will be emitted.
If some another error has been received during pin code setting then UnableSetPinException will be emitted.
NOTE: User must be valid.
Return
Completable that completes when pin has been set
See also
Parameters
pin
PIN code