Datasheet

Parameters: This command accepts a set of comma-separated key-value pairs that are used to define the service

properties. The following key-value pairs can be used:

UUID: The 16-bit UUID to use for this service. 16-bit values should be in hexadecimal format (0x1234).

UUID128: The 128-bit UUID to use for this service. 128-bit values should be in the following format: 00-11-22-33-

44-55-66-77-88-99-AA-BB-CC-DD-EE-FF

Response: The index value of the service in the custom GATT service lookup table. (It's important to keep track of

these index values to work with the service later.)

# Clear any previous custom services/characteristics

AT+GATTCLEAR

# Add a battery service (UUID = 0x180F) to the peripheral

AT+GATTADDSERVICE=UUID=0x180F

# Add a battery measurement characteristic (UUID = 0x2A19), notify enabled

AT+GATTADDCHAR=UUID=0x2A19,PROPERTIES=0x10,MIN_LEN=1,VALUE=100

# Clear any previous custom services/characteristics

AT+GATTCLEAR

# Add a custom service to the peripheral

AT+GATTADDSERVICE=UUID128=00-11-00-11-44-55-66-77-88-99-AA-BB-CC-DD-EE-FF

# Add a custom characteristic to the above service (making sure that there

# is no conflict between the 16-bit UUID and bytes 3+4 of the 128-bit service UUID)

AT+GATTADDCHAR=UUID=0x0002,PROPERTIES=0x02,MIN_LEN=1,VALUE=100

AT+GATTADDCHAR

Adds a custom characteristic to the last service that was added to the peripheral (via AT+GATTADDSERVICE).

Note: Key values are not case-sensitive



Only one UUID type can be entered for the service (either UUID or UUID128)



AT+GATTADDCHAR must be run AFTER AT+GATTADDSERVICE, and will add the new characteristic to the

last service definition that was added.

