3 - Data Formats
eDynamo| Secure Card Reader Authenticator | Programmer’s Manual (COMMANDS)
Page 32 of 245 (D998200115-17)
If the Card Data characteristic (see section 2.2.1 About GATT Characteristics) is configured to use
notifications, the maximum notification message partial data length supported by the protocol is the
maximum notification payload size (19), times the maximum number of block identifiers (255) = 4845
bytes - headers (3 + 8) = 4834 bytes.