The request was rejected due to insufficient privileges.
Received an invalid value in the given request for the given characteristic.
Event notifications are not supported for the requested characteristic (NOTIFY not defined).
Operation not allowed in the current state.
The operation timed out.
The device is out of resources to process the request.
Cannot write a read-only characteristic (PAIRED_WRITE not defined).
The resource is busy. Try again.
The given resource does not exist.
Operation failed due to some communication failure with the characteristic.
Success of the request.
Cannot read from a write-only characteristic (PAIRED_READ not defined).