1. How to open ANCS function

1.1 Please read apple notification document first: {{:digispark:tutorials:applenotificationcenterservicespecification.pdf|}} and HM-10 datasheet for commands referenced below: {{:digispark:tutorials:bluetooth40_en.pdf|}}
1.2 Send AT+TYPE3 command change to AUTH and BOND mode.
1.3 Send AT+ANCS1 command to open ANCS.
1.4 Send AT+PASS[para1] command to set passcode. Default passcode is "000000"
1.5 Send AT+RESET to restart module.
Scan and connect with module.
iOS will ask you input passcode. please input your passcode value.
If all is okay,  you should receive AT+ANCS[para1] command from module UART.

2. About AT+ANCS[para1] command

AT+ANCSN: module open Notification Source SUCCESSED.
AT+ANCSC: module open Control Point SUCCESSED.
AT+ANCSD: module open Data Source SUCCESSED.

3. Get ANCS notification information

When iOS notification center has an change (such as call, email, shortmessage)
Module will output AT+ANCS8[para2] command through UART.

4. About AT+ANCS8[para2] command.

 Format such as : AT+ANCS801012345
     8: The length of the para1.
     0: EventID.
        EventIDNotificationAdded = 0,
        EventIDNotificationModified = 1,
        EventIDNotificationRemoved = 2,
        Reserved EventID values = 3¨C255
     1: CategoryID.
        CategoryIDOther = 0,
        CategoryIDIncomingCall = 1,
        CategoryIDMissedCall = 2,
        CategoryIDVoicemail = 3,
        CategoryIDSocial = 4,
        CategoryIDSchedule = 5,
        CategoryIDEmail = 6,
        CategoryIDNews = 7,
        CategoryIDHealthAndFitness = 8,
        CategoryIDBusinessAndFinance = 9,
        CategoryIDLocation = 10,
        CategoryIDEntertainment = 11,
        Reserved CategoryID values = 12¨C255
    01: CategoryCount
        The current number of active iOS notifications in the given category. 
        For example, if two unread emails are sitting in a user¡¯s email inbox, 
        and a new email is pushed to the user¡¯s iOS device, the value of CategoryCount is 3.
  2345: NotificationUID
        A 32-bit numerical value that is the unique identifier (UID) for the iOS notification. 
        This value can be used as a handle in commands sent to the Control Point characteristic 
        to retrieve more information about the iOS notification.

5. Get Notification Attributes

 AT+ANCS[para1][para2][para3]
 Format such as: AT+ANCS2345100
 para1: NotificationUID.
 Para2: NotificationAttributeID
        NotificationAttributeIDAppIdentifier = 0,
        NotificationAttributeIDTitle = 1, (Needs to be followed by a 2-bytes max length parameter)
        NotificationAttributeIDSubtitle = 2, (Needs to be followed by a 2-bytes max length parameter)
        NotificationAttributeIDMessage = 3, (Needs to be followed by a 2-bytes max length parameter)
        NotificationAttributeIDMessageSize = 4,
        NotificationAttributeIDDate = 5,
        Reserved NotificationAttributeID values = 6¨C255
 Para3: max length parameter
        If para2 value is 0, 4, 5, para3 must set to "00"
        if para2 value is 1, 2, 3, you need setup a number.

6. Aoubt Get Notification Attributes Response

 AT+ANCSW: Send request SUCCESSED.
 AT+ANCS[para1]: 
 para1 value is 0x00 ~ 0x14.
 Mean the next package length you need to receive.
 [........]: The byte array you need to receive.
             Show in apple Notification document Figure 2-6. (page 9)
 After you receive AT+ANCSW, you may receive AT+ANCS[para1] many times. until the Fingure 2-6 package is completed.

7. How to remove ANCS.

 7.1 Remove connection information from iOS.
 7.2 Execute AT+ERASE to remove module connection information.
 7.3 Execute AT+ANCS0 close module ANCS function.
 7.4 Execute AT+RESET to restart module.