Historia

Frantisek Hrbata 1c92945f59 change(examples): switch examples to use a minimal build Currently, several example dependencies rely on the fact that all registered components are added to the build, along with components specified in common requirements. This results in longer build times because even unused components must be built. Switch all examples to use idf_minimal_build to compile only the components actually required by the example. Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>		2024-11-20 20:14:40 +01:00
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CMakeLists.txt	change(examples): switch examples to use a minimal build	2024-11-20 20:14:40 +01:00
README.md	…
sdkconfig.defaults	…

README.md

Supported Targets	ESP32	ESP32-C2	ESP32-C3	ESP32-C5	ESP32-C6	ESP32-C61	ESP32-H2	ESP32-S3

BLE Current Time Service Example

(See the README.md file in the upper level 'examples' directory for more information about examples.)

This example creates GATT server demonstrating standard Current Time Service.

It advertises support for the Current Time Service(0x1805) as primary service UUID.

It uses ESP32's Bluetooth controller and NimBLE stack based BLE host

How to Use Example

Before project configuration and build, be sure to set the correct chip target using:

idf.py set-target <chip_name>

Hardware Required

A development board with ESP32/ESP32-C3 SoC (e.g., ESP32-DevKitC, ESP-WROVER-KIT, etc.)
A USB cable for Power supply and programming

See Development Boards for more information about it.

Build and Flash

Run idf.py -p PORT flash monitor to build, flash and monitor the project.

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.

Example Output

This console output can be observed when client is connected to server :

I (357) BLE_INIT: BT controller compile version [59725b5]
I (357) BLE_INIT: Bluetooth MAC: 60:55:f9:68:c4:fa
I (367) phy_init: phy_version 1110,9c20f0a,Jul 27 2023,10:42:54
I (407) NimBLE_cts_PRPH: BLE Host Task Started
I (407) NimBLE: GAP procedure initiated: stop advertising.

I (407) NimBLE: Failed to restore IRKs from store; status=8

I (407) NimBLE: Device Address:
I (417) NimBLE: 60:55:f9:68:c4:fa
I (417) NimBLE:

I (417) NimBLE: GAP procedure initiated: advertise;
I (427) NimBLE: disc_mode=2
I (427) NimBLE:  adv_channel_map=0 own_addr_type=0 adv_filter_policy=0 adv_itvl_min=0 adv_itvl_max=0
I (437) NimBLE:

I (447) main_task: Returned from app_main()

I (27317) NimBLE: GAP procedure initiated: advertise;
I (27317) NimBLE: disc_mode=2
I (27327) NimBLE:  adv_channel_map=0 own_addr_type=0 adv_filter_policy=0 adv_itvl_min=0 adv_itvl_max=0
I (27337) NimBLE:

I (31987) NimBLE: connection established; status=0

I (53297) NimBLE: subscribe event; cur_notify=1
 value handle; val_handle=12

 I (68317) NimBLE: subscribe event; cur_notify=0
  value handle; val_handle=12

Troubleshooting

For any technical queries, please open an issue on GitHub. We will get back to you soon.