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Bluefruit-LE-Shield-BLE-GATT (voir la source)
Version du 22 juin 2017 à 13:41
, 22 juin 2017 à 13:41→AT+GATTCHAR
** The second (optional) parameter is the new value to assign to this characteristic (within the MIN_SIZE and MAX_SIZE limits defined when creating it).
** The second (optional) parameter is the new value to assign to this characteristic (within the MIN_SIZE and MAX_SIZE limits defined when creating it).
* Response: If the command is used in read mode (only the characteristic index is provided as a value), the response will display the current value of the characteristics. If the command is used in write mode (two comma-separated values are provided), the characteristics will be updated to use the provided value.
* Response: If the command is used in read mode (only the characteristic index is provided as a value), the response will display the current value of the characteristics. If the command is used in write mode (two comma-separated values are provided), the characteristics will be updated to use the provided value.
<nowiki># Clear any previous custom services/characteristics
AT+GATTCLEAR
OK
# Add a battery service (UUID = 0x180F) to the peripheral
AT+GATTADDSERVICE=UUID=0x180F
1
OK
# Add a battery measurement characteristic (UUID = 0x2A19), notify enabled
AT+GATTADDCHAR=UUID=0x2A19,PROPERTIES=0x10,MIN_LEN=1,VALUE=100
1
OK
# Read the battery measurement characteristic (index ID = 1)
AT+GATTCHAR=1
0x64
OK
# Update the battery measurement characteristic to 32 (hex 0x20)
AT+GATTCHAR=1,32
OK
# Verify the previous write attempt
AT+GATTCHAR=1
0x20
OK</nowiki>
== AT+GATTLIST ==
Lists all custom GATT services and characteristics that have been defined on the device.
* Codebase Revision: 0.3.0
* Parameters: None
* Response: A list of all custom services and characteristics defined on the device.
<nowiki># Clear any previous custom services/characteristics
AT+GATTCLEAR
OK
# Add a battery service (UUID = 0x180F) to the peripheral
AT+GATTADDSERVICE=UUID=0x180F
1
OK
# Add a battery measurement characteristic (UUID = 0x2A19), notify enabled
AT+GATTADDCHAR=UUID=0x2A19,PROPERTIES=0x10,MIN_LEN=1,VALUE=100
1
OK
# 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
2
OK
# 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
2
OK
# Get a list of all custom GATT services and characteristics on the device
AT+GATTLIST
ID=01,UUID=0x180F
ID=01,UUID=0x2A19,PROPERTIES=0x10,MIN_LEN=1,MAX_LEN=1,VALUE=0x64
ID=02,UUID=0x11, UUID128=00-11-00-11-44-55-66-77-88-99-AA-BB-CC-DD-EE-FF
ID=02,UUID=0x02,PROPERTIES=0x02,MIN_LEN=1,MAX_LEN=1,VALUE=0x64
OK</nowiki>
== AT+GATTCHARRAW ==
This read only command reads binary (instead of ASCII) data from a characteristic. It is non-printable but has less overhead and is easier when writing libraries in Arduino.
* Codebase Revision: 0.7.0
* Parameters: The numeric ID of the characteristic to display the data for
* Output: Binary data corresponding to the specified characteristic.
{{ambox|text=Note: This is a specialized command and no NEWLINE is present at the end of the command!}}
{{Bluefruit-LE-Shield-TRAILER}}
{{Bluefruit-LE-Shield-TRAILER}}