GATT CLIENT API¶
Overview¶
Application Example¶
Check bluetooth folder in ESP-IDF examples, which contains the following application:
- This is a GATT client demo. This demo can scan devices, connect to the GATT server and discover the service bluetooth/gatt_client
API Reference¶
Header File¶
Functions¶
-
esp_err_t
esp_ble_gattc_register_callback
(esp_gattc_cb_t callback)¶ This function is called to register application callbacks with GATTC module.
- Return
- ESP_OK: success
- other: failed
- Parameters
callback
: : pointer to the application callback function.
-
esp_err_t
esp_ble_gattc_app_register
(uint16_t app_id)¶ This function is called to register application callbacks with GATTC module.
- Return
- ESP_OK: success
- other: failed
- Parameters
app_id
: : Application Identify (UUID), for different application
-
esp_err_t
esp_ble_gattc_app_unregister
(esp_gatt_if_t gattc_if)¶ This function is called to unregister an application from GATTC module.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.
-
esp_err_t
esp_ble_gattc_open
(esp_gatt_if_t gattc_if, esp_bd_addr_t remote_bda, bool is_direct)¶ Open a direct connection or add a background auto connection.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.remote_bda
: remote device bluetooth device address.is_direct
: direct connection or background auto connection
-
esp_err_t
esp_ble_gattc_close
(esp_gatt_if_t gattc_if, uint16_t conn_id)¶ Close a virtual connection to a GATT server. gattc maybe have multiple virtual GATT server connections when multiple app_id registed, this API only close one virtual GATT server connection. if there exist other virtual GATT server connections, it does not disconnect the physical connection. if you want to disconnect the physical connection directly, you can use esp_ble_gap_disconnect(esp_bd_addr_t remote_device).
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: connection ID to be closed.
-
esp_err_t
esp_ble_gattc_config_mtu
(esp_gatt_if_t gattc_if, uint16_t conn_id, uint16_t mtu)¶ Configure the MTU size in the GATT channel. This can be done only once per connection.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: connection ID.mtu
: desired MTU size to use.
-
esp_err_t
esp_ble_gattc_search_service
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_bt_uuid_t *filter_uuid)¶ This function is called to request a GATT service discovery on a GATT server. This function report service search result by a callback event, and followed by a service search complete event.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: connection ID.filter_uuid
: a UUID of the service application is interested in. If Null, discover for all services.
-
esp_err_t
esp_ble_gattc_get_characteristic
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *start_char_id)¶ This function is called to find the first characteristic of the service on the given server.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: connection ID which identify the server.srvc_id
: service IDstart_char_id
: the start characteristic ID
-
esp_err_t
esp_ble_gattc_get_descriptor
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *char_id, esp_gatt_id_t *start_descr_id)¶ This function is called to find the descriptor of the service on the given server.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: connection ID which identify the server.srvc_id
: the service ID of which the characteristic is belonged to.char_id
: Characteristic ID, if NULL find the first available characteristic.start_descr_id
: the start descriptor id
-
esp_err_t
esp_ble_gattc_get_included_service
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_gatt_srvc_id_t *srvc_id, esp_gatt_srvc_id_t *start_incl_srvc_id)¶ This function is called to find the first characteristic of the service on the given server.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: connection ID which identify the server.srvc_id
: the service ID of which the characteristic is belonged to.start_incl_srvc_id
: the start include service id
-
esp_err_t
esp_ble_gattc_read_char
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *char_id, esp_gatt_auth_req_t auth_req)¶ This function is called to read a service’s characteristics of the given characteristic ID.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: : connection ID.srvc_id
: : service ID.char_id
: : characteristic ID to read.auth_req
: : authenticate request type
-
esp_err_t
esp_ble_gattc_read_char_descr
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *char_id, esp_gatt_id_t *descr_id, esp_gatt_auth_req_t auth_req)¶ This function is called to read a characteristics descriptor.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: : connection ID.srvc_id
: : service ID.char_id
: : characteristic ID to read.descr_id
: : characteristic descriptor ID to read.auth_req
: : authenticate request type
-
esp_err_t
esp_ble_gattc_write_char
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *char_id, uint16_t value_len, uint8_t *value, esp_gatt_write_type_t write_type, esp_gatt_auth_req_t auth_req)¶ This function is called to write characteristic value.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: : connection ID.srvc_id
: : service ID.char_id
: : characteristic ID to write.value_len
: length of the value to be written.value
: : the value to be written.write_type
: : the type of attribute write operation.auth_req
: : authentication request.
-
esp_err_t
esp_ble_gattc_write_char_descr
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *char_id, esp_gatt_id_t *descr_id, uint16_t value_len, uint8_t *value, esp_gatt_write_type_t write_type, esp_gatt_auth_req_t auth_req)¶ This function is called to write characteristic descriptor value.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: : connection IDsrvc_id
: : service ID.char_id
: : characteristic ID.descr_id
: : characteristic descriptor ID to write.value_len
: length of the value to be written.value
: : the value to be written.write_type
: : the type of attribute write operation.auth_req
: : authentication request.
-
esp_err_t
esp_ble_gattc_prepare_write
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *char_id, uint16_t offset, uint16_t value_len, uint8_t *value, esp_gatt_auth_req_t auth_req)¶ This function is called to prepare write a characteristic value.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: : connection ID.srvc_id
: : service ID.char_id
: : GATT characteristic ID of the service.offset
: : offset of the write value.value_len
: length of the value to be written.value
: : the value to be written.auth_req
: : authentication request.
-
esp_err_t
esp_ble_gattc_prepare_write_char_descr
(esp_gatt_if_t gattc_if, uint16_t conn_id, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *char_id, esp_gatt_id_t *descr_id, uint16_t offset, uint16_t value_len, uint8_t *value, esp_gatt_auth_req_t auth_req)¶ This function is called to prepare write a characteristic descriptor value.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: : connection ID.srvc_id
: : service ID.char_id
: : GATT characteristic ID of the service.descr_id
: : characteristic descriptor ID to write.offset
: : offset of the write value.value_len
: length of the value to be written.value
: : the value to be written.auth_req
: : authentication request.
-
esp_err_t
esp_ble_gattc_execute_write
(esp_gatt_if_t gattc_if, uint16_t conn_id, bool is_execute)¶ This function is called to execute write a prepare write sequence.
- Return
- ESP_OK: success
- other: failed
- Parameters
gattc_if
: Gatt client access interface.conn_id
: : connection ID.is_execute
: : execute or cancel.
-
esp_gatt_status_t
esp_ble_gattc_register_for_notify
(esp_gatt_if_t gattc_if, esp_bd_addr_t server_bda, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *char_id)¶ This function is called to register for notification of a service.
- Return
- ESP_OK: registration succeeds
- other: failed
- Parameters
gattc_if
: Gatt client access interface.server_bda
: : target GATT server.srvc_id
: : pointer to GATT service ID.char_id
: : pointer to GATT characteristic ID.
-
esp_gatt_status_t
esp_ble_gattc_unregister_for_notify
(esp_gatt_if_t gattc_if, esp_bd_addr_t server_bda, esp_gatt_srvc_id_t *srvc_id, esp_gatt_id_t *char_id)¶ This function is called to de-register for notification of a service.
- Return
- ESP_OK: unregister succeeds
- other: failed
- Parameters
gattc_if
: Gatt client access interface.server_bda
: : target GATT server.srvc_id
: : pointer to GATT service ID.char_id
: : pointer to GATT characteristic ID.
-
esp_err_t
esp_ble_gattc_cache_refresh
(esp_bd_addr_t remote_bda)¶ Refresh the server cache store in the gattc stack of the remote device.
- Return
- ESP_OK: success
- other: failed
- Parameters
remote_bda
: remote device BD address.
Unions¶
-
union
esp_ble_gattc_cb_param_t
¶ - #include <esp_gattc_api.h>
Gatt client callback parameters union.
Public Members
-
struct esp_ble_gattc_cb_param_t::gattc_reg_evt_param
reg
¶ Gatt client callback param of ESP_GATTC_REG_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_open_evt_param
open
¶ Gatt client callback param of ESP_GATTC_OPEN_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_close_evt_param
close
¶ Gatt client callback param of ESP_GATTC_CLOSE_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_cfg_mtu_evt_param
cfg_mtu
¶ Gatt client callback param of ESP_GATTC_CFG_MTU_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_search_cmpl_evt_param
search_cmpl
¶ Gatt client callback param of ESP_GATTC_SEARCH_CMPL_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_search_res_evt_param
search_res
¶ Gatt client callback param of ESP_GATTC_SEARCH_RES_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_read_char_evt_param
read
¶ Gatt client callback param of ESP_GATTC_READ_CHAR_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_write_evt_param
write
¶ Gatt client callback param of ESP_GATTC_WRITE_DESCR_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_exec_cmpl_evt_param
exec_cmpl
¶ Gatt client callback param of ESP_GATTC_EXEC_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_notify_evt_param
notify
¶ Gatt client callback param of ESP_GATTC_NOTIFY_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_srvc_chg_evt_param
srvc_chg
¶ Gatt client callback param of ESP_GATTC_SRVC_CHG_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_congest_evt_param
congest
¶ Gatt client callback param of ESP_GATTC_CONGEST_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_get_char_evt_param
get_char
¶ Gatt client callback param of ESP_GATTC_GET_CHAR_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_get_descr_evt_param
get_descr
¶ Gatt client callback param of ESP_GATTC_GET_DESCR_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_get_incl_srvc_evt_param
get_incl_srvc
¶ Gatt client callback param of ESP_GATTC_GET_INCL_SRVC_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_reg_for_notify_evt_param
reg_for_notify
¶ Gatt client callback param of ESP_GATTC_REG_FOR_NOTIFY_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_unreg_for_notify_evt_param
unreg_for_notify
¶ Gatt client callback param of ESP_GATTC_UNREG_FOR_NOTIFY_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_connect_evt_param
connect
¶ Gatt client callback param of ESP_GATTC_CONNECT_EVT
-
struct esp_ble_gattc_cb_param_t::gattc_disconnect_evt_param
disconnect
¶ Gatt client callback param of ESP_GATTC_DISCONNECT_EVT
-
struct
gattc_cfg_mtu_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_CFG_MTU_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
uint16_t
mtu
¶ MTU size
-
esp_gatt_status_t
-
struct
gattc_close_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_CLOSE_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
esp_bd_addr_t
remote_bda
¶ Remote bluetooth device address
-
esp_gatt_conn_reason_t
reason
¶ The reason of gatt connection close
-
esp_gatt_status_t
-
struct
gattc_congest_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_CONGEST_EVT.
-
struct
gattc_connect_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_CONNECT_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
esp_bd_addr_t
remote_bda
¶ Remote bluetooth device address
-
esp_gatt_status_t
-
struct
gattc_disconnect_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_DISCONNECT_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
esp_bd_addr_t
remote_bda
¶ Remote bluetooth device address
-
esp_gatt_status_t
-
struct
gattc_exec_cmpl_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_EXEC_EVT.
-
struct
gattc_get_char_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_GET_CHAR_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
esp_gatt_srvc_id_t
srvc_id
¶ Service id, include service uuid and other information
-
esp_gatt_id_t
char_id
¶ Characteristic id, include characteristic uuid and other information
-
esp_gatt_char_prop_t
char_prop
¶ Characteristic property
-
esp_gatt_status_t
-
struct
gattc_get_descr_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_GET_DESCR_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
esp_gatt_srvc_id_t
srvc_id
¶ Service id, include service uuid and other information
-
esp_gatt_id_t
char_id
¶ Characteristic id, include characteristic uuid and other information
-
esp_gatt_id_t
descr_id
¶ Descriptor id, include descriptor uuid and other information
-
esp_gatt_status_t
-
struct
gattc_get_incl_srvc_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_GET_INCL_SRVC_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
esp_gatt_srvc_id_t
srvc_id
¶ Service id, include service uuid and other information
-
esp_gatt_srvc_id_t
incl_srvc_id
¶ Included service id, include service uuid and other information
-
esp_gatt_status_t
-
struct
gattc_notify_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_NOTIFY_EVT.
Public Members
-
uint16_t
conn_id
¶ Connection id
-
esp_bd_addr_t
remote_bda
¶ Remote bluetooth device address
-
esp_gatt_srvc_id_t
srvc_id
¶ Service id, include service uuid and other information
-
esp_gatt_id_t
char_id
¶ Characteristic id, include characteristic uuid and other information
-
esp_gatt_id_t
descr_id
¶ Descriptor id, include descriptor uuid and other information
-
uint16_t
value_len
¶ Notify attribute value
-
uint8_t *
value
¶ Notify attribute value
-
bool
is_notify
¶ True means notify, false means indicate
-
uint16_t
-
struct
gattc_open_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_OPEN_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
esp_bd_addr_t
remote_bda
¶ Remote bluetooth device address
-
uint16_t
mtu
¶ MTU size
-
esp_gatt_status_t
-
struct
gattc_read_char_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_READ_CHAR_EVT, ESP_GATTC_READ_DESCR_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
esp_gatt_srvc_id_t
srvc_id
¶ Service id, include service uuid and other information
-
esp_gatt_id_t
char_id
¶ Characteristic id, include characteristic uuid and other information
-
esp_gatt_id_t
descr_id
¶ Descriptor id, include descriptor uuid and other information
-
uint8_t *
value
¶ Characteristic value
-
uint16_t
value_type
¶ Characteristic value type, there is two value for this type: ESP_GATTC_READ_VALUE_TYPE_VALUE(0x0000) and ESP_GATTC_READ_VALUE_TYPE_AGG_FORMAT(0x2905). If the value is ESP_GATTC_READ_VALUE_TYPE_VALUE means it is a generally value type, and if is the type of ESP_GATTC_READ_VALUE_TYPE_AGG_FORMAT, the unit of the value will indicate in the Characteristic aggregate format descriptor
-
uint16_t
value_len
¶ Characteristic value length
-
esp_gatt_status_t
-
struct
gattc_reg_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_REG_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
app_id
¶ Application id which input in register API
-
esp_gatt_status_t
-
struct
gattc_reg_for_notify_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_REG_FOR_NOTIFY_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
esp_gatt_srvc_id_t
srvc_id
¶ Service id, include service uuid and other information
-
esp_gatt_id_t
char_id
¶ Characteristic id, include characteristic uuid and other information
-
esp_gatt_status_t
-
struct
gattc_search_cmpl_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_SEARCH_CMPL_EVT.
-
struct
gattc_search_res_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_SEARCH_RES_EVT.
Public Members
-
uint16_t
conn_id
¶ Connection id
-
esp_gatt_srvc_id_t
srvc_id
¶ Service id, include service uuid and other information
-
uint16_t
-
struct
gattc_srvc_chg_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_SRVC_CHG_EVT.
Public Members
-
esp_bd_addr_t
remote_bda
¶ Remote bluetooth device address
-
esp_bd_addr_t
-
struct
gattc_unreg_for_notify_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_UNREG_FOR_NOTIFY_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
esp_gatt_srvc_id_t
srvc_id
¶ Service id, include service uuid and other information
-
esp_gatt_id_t
char_id
¶ Characteristic id, include characteristic uuid and other information
-
esp_gatt_status_t
-
struct
gattc_write_evt_param
¶ - #include <esp_gattc_api.h>
ESP_GATTC_WRITE_CHAR_EVT, ESP_GATTC_PREP_WRITE_EVT, ESP_GATTC_WRITE_DESCR_EVT.
Public Members
-
esp_gatt_status_t
status
¶ Operation status
-
uint16_t
conn_id
¶ Connection id
-
esp_gatt_srvc_id_t
srvc_id
¶ Service id, include service uuid and other information
-
esp_gatt_id_t
char_id
¶ Characteristic id, include characteristic uuid and other information
-
esp_gatt_id_t
descr_id
¶ Descriptor id, include descriptor uuid and other information
-
esp_gatt_status_t
-
struct esp_ble_gattc_cb_param_t::gattc_reg_evt_param
Macros¶
-
ESP_GATT_DEF_BLE_MTU_SIZE
¶ Maximum Transmission Unit used in GATT.
-
ESP_GATT_MAX_MTU_SIZE
¶ Maximum Transmission Unit allowed in GATT.
Type Definitions¶
-
typedef void (*
esp_gattc_cb_t
)(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param)¶ GATT Client callback function type.
- Parameters
event
: : Event typegatts_if
: : GATT client access interface, normally different gattc_if correspond to different profileparam
: : Point to callback parameter, currently is union type
Enumerations¶
-
enum
esp_gattc_cb_event_t
¶ GATT Client callback function events.
Values:
-
ESP_GATTC_REG_EVT
= 0¶ When GATT client is registered, the event comes
-
ESP_GATTC_UNREG_EVT
= 1¶ When GATT client is unregistered, the event comes
-
ESP_GATTC_OPEN_EVT
= 2¶ When GATT virtual connection is set up, the event comes
-
ESP_GATTC_READ_CHAR_EVT
= 3¶ When GATT characteristic is read, the event comes
-
ESP_GATTC_WRITE_CHAR_EVT
= 4¶ When GATT characteristic write operation completes, the event comes
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ESP_GATTC_CLOSE_EVT
= 5¶ When GATT virtual connection is closed, the event comes
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ESP_GATTC_SEARCH_CMPL_EVT
= 6¶ When GATT service discovery is completed, the event comes
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ESP_GATTC_SEARCH_RES_EVT
= 7¶ When GATT service discovery result is got, the event comes
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ESP_GATTC_READ_DESCR_EVT
= 8¶ When GATT characteristic descriptor read completes, the event comes
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ESP_GATTC_WRITE_DESCR_EVT
= 9¶ When GATT characteristic descriptor write completes, the event comes
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ESP_GATTC_NOTIFY_EVT
= 10¶ When GATT notification or indication arrives, the event comes
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ESP_GATTC_PREP_WRITE_EVT
= 11¶ When GATT prepare-write operation completes, the event comes
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ESP_GATTC_EXEC_EVT
= 12¶ When write execution completes, the event comes
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ESP_GATTC_ACL_EVT
= 13¶ When ACL connection is up, the event comes
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ESP_GATTC_CANCEL_OPEN_EVT
= 14¶ When GATT client ongoing connection is cancelled, the event comes
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ESP_GATTC_SRVC_CHG_EVT
= 15¶ When “service changed” occurs, the event comes
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ESP_GATTC_ENC_CMPL_CB_EVT
= 17¶ When encryption procedure completes, the event comes
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ESP_GATTC_CFG_MTU_EVT
= 18¶ When configuration of MTU completes, the event comes
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ESP_GATTC_ADV_DATA_EVT
= 19¶ When advertising of data, the event comes
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ESP_GATTC_MULT_ADV_ENB_EVT
= 20¶ When multi-advertising is enabled, the event comes
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ESP_GATTC_MULT_ADV_UPD_EVT
= 21¶ When multi-advertising parameters are updated, the event comes
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ESP_GATTC_MULT_ADV_DATA_EVT
= 22¶ When multi-advertising data arrives, the event comes
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ESP_GATTC_MULT_ADV_DIS_EVT
= 23¶ When multi-advertising is disabled, the event comes
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ESP_GATTC_CONGEST_EVT
= 24¶ When GATT connection congestion comes, the event comes
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ESP_GATTC_BTH_SCAN_ENB_EVT
= 25¶ When batch scan is enabled, the event comes
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ESP_GATTC_BTH_SCAN_CFG_EVT
= 26¶ When batch scan storage is configured, the event comes
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ESP_GATTC_BTH_SCAN_RD_EVT
= 27¶ When Batch scan read event is reported, the event comes
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ESP_GATTC_BTH_SCAN_THR_EVT
= 28¶ When Batch scan threshold is set, the event comes
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ESP_GATTC_BTH_SCAN_PARAM_EVT
= 29¶ When Batch scan parameters are set, the event comes
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ESP_GATTC_BTH_SCAN_DIS_EVT
= 30¶ When Batch scan is disabled, the event comes
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ESP_GATTC_SCAN_FLT_CFG_EVT
= 31¶ When Scan filter configuration completes, the event comes
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ESP_GATTC_SCAN_FLT_PARAM_EVT
= 32¶ When Scan filter parameters are set, the event comes
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ESP_GATTC_SCAN_FLT_STATUS_EVT
= 33¶ When Scan filter status is reported, the event comes
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ESP_GATTC_ADV_VSC_EVT
= 34¶ When advertising vendor spec content event is reported, the event comes
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ESP_GATTC_GET_CHAR_EVT
= 35¶ When characteristic is got from GATT server, the event comes
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ESP_GATTC_GET_DESCR_EVT
= 36¶ When characteristic descriptor is got from GATT server, the event comes
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ESP_GATTC_GET_INCL_SRVC_EVT
= 37¶ When included service is got from GATT server, the event comes
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ESP_GATTC_REG_FOR_NOTIFY_EVT
= 38¶ When register for notification of a service completes, the event comes
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ESP_GATTC_UNREG_FOR_NOTIFY_EVT
= 39¶ When unregister for notification of a service completes, the event comes
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ESP_GATTC_CONNECT_EVT
= 40¶ When the ble physical connection is set up, the event comes
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ESP_GATTC_DISCONNECT_EVT
= 41¶ When the ble physical connection disconnected, the event comes
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