micropython · MarceauFillon · Sep 7, 2021 · Sep 9, 2021 · Sep 9, 2021
diff --git a/extmod/modbluetooth.c b/extmod/modbluetooth.c
@@ -628,6 +628,16 @@ STATIC mp_obj_t bluetooth_ble_gatts_register_services(mp_obj_t self_in, mp_obj_t
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(bluetooth_ble_gatts_register_services_obj, bluetooth_ble_gatts_register_services);
 
+STATIC mp_obj_t bluetooth_ble_gatts_get_service_handle(mp_obj_t self_in, mp_obj_t service_uuid_in){
+    (void)self_in;
+
+    const mp_obj_bluetooth_uuid_t *service_uuid = MP_OBJ_TO_PTR(service_uuid_in);
+    uint16_t service_handle = mp_bluetooth_ble_gatts_get_service_handle(service_uuid);
+
+    return mp_obj_new_int(service_handle);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(bluetooth_ble_gatts_get_service_handle_obj, bluetooth_ble_gatts_get_service_handle);
+
 #if MICROPY_PY_BLUETOOTH_ENABLE_CENTRAL_MODE
 STATIC mp_obj_t bluetooth_ble_gap_connect(size_t n_args, const mp_obj_t *args) {
     uint8_t addr_type = mp_obj_get_int(args[1]);
@@ -935,6 +945,7 @@ STATIC const mp_rom_map_elem_t bluetooth_ble_locals_dict_table[] = {
     { MP_ROM_QSTR(MP_QSTR_gatts_notify), MP_ROM_PTR(&bluetooth_ble_gatts_notify_obj) },
     { MP_ROM_QSTR(MP_QSTR_gatts_indicate), MP_ROM_PTR(&bluetooth_ble_gatts_indicate_obj) },
     { MP_ROM_QSTR(MP_QSTR_gatts_set_buffer), MP_ROM_PTR(&bluetooth_ble_gatts_set_buffer_obj) },
+    { MP_ROM_QSTR(MP_QSTR_gatts_get_service_handle), MP_ROM_PTR(&bluetooth_ble_gatts_get_service_handle_obj) },
     #if MICROPY_PY_BLUETOOTH_ENABLE_GATT_CLIENT
     // GATT Client
     { MP_ROM_QSTR(MP_QSTR_gattc_discover_services), MP_ROM_PTR(&bluetooth_ble_gattc_discover_services_obj) },

diff --git a/extmod/modbluetooth.h b/extmod/modbluetooth.h
@@ -347,6 +347,9 @@ int mp_bluetooth_gatts_indicate(uint16_t conn_handle, uint16_t value_handle);
 // Append-mode means that remote writes will append and local reads will clear after reading.
 int mp_bluetooth_gatts_set_buffer(uint16_t value_handle, size_t len, bool append);
 
+// Return the value handle of a service identified from its uuid.
+uint16_t mp_bluetooth_ble_gatts_get_service_handle(const mp_obj_bluetooth_uuid_t *service_uuid_in);
+
 // Disconnect from a central or peripheral.
 int mp_bluetooth_gap_disconnect(uint16_t conn_handle);
 

diff --git a/extmod/nimble/modbluetooth_nimble.c b/extmod/nimble/modbluetooth_nimble.c
@@ -1075,6 +1075,15 @@ int mp_bluetooth_set_preferred_mtu(uint16_t mtu) {
     return 0;
 }
 
+uint16_t mp_bluetooth_ble_gatts_get_service_handle(const mp_obj_bluetooth_uuid_t *service_uuid_in){
+    const ble_uuid_t *service_nimble_uuid = create_nimble_uuid(service_uuid_in, NULL);
+    uint16_t service_handle = 0;
+
+    ble_gatts_find_svc(service_nimble_uuid, &service_handle);
+
+    return service_handle;
+}
+
 #if MICROPY_PY_BLUETOOTH_ENABLE_PAIRING_BONDING
 int mp_bluetooth_gap_pair(uint16_t conn_handle) {
     DEBUG_printf("mp_bluetooth_gap_pair: conn_handle=%d\n", conn_handle);