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Merge branch 'feature/current_time_service_v5.1' into 'release/v5.1'
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feat(nimble): Added Example support for Current Time Service (v5.1)

See merge request espressif/esp-idf!27262
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rahult-github committed Dec 15, 2023
2 parents e51e8a0 + e8503d6 commit 820d4a9
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2 changes: 2 additions & 0 deletions components/bt/CMakeLists.txt
Expand Up @@ -535,6 +535,7 @@ if(CONFIG_BT_ENABLED)
host/nimble/nimble/nimble/host/services/ipss/include
host/nimble/nimble/nimble/host/services/lls/include
host/nimble/nimble/nimble/host/services/prox/include
host/nimble/nimble/nimble/host/services/cts/include
host/nimble/nimble/nimble/host/services/tps/include
host/nimble/nimble/nimble/host/util/include
host/nimble/nimble/nimble/host/store/ram/include
Expand All @@ -555,6 +556,7 @@ if(CONFIG_BT_ENABLED)
"host/nimble/nimble/nimble/host/services/dis/src/ble_svc_dis.c"
"host/nimble/nimble/nimble/host/services/lls/src/ble_svc_lls.c"
"host/nimble/nimble/nimble/host/services/prox/src/ble_svc_prox.c"
"host/nimble/nimble/nimble/host/services/cts/src/ble_svc_cts.c"
"host/nimble/nimble/nimble/host/src/ble_hs_conn.c"
"host/nimble/nimble/nimble/host/src/ble_store_util.c"
"host/nimble/nimble/nimble/host/src/ble_sm.c"
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6 changes: 6 additions & 0 deletions examples/bluetooth/.build-test-rules.yml
Expand Up @@ -142,6 +142,12 @@ examples/bluetooth/nimble:
temporary: true
reason: The runner doesn't support yet

examples/bluetooth/nimble/ble_cts:
enable:
- if: IDF_TARGET in ["esp32", "esp32c2", "esp32c3", "esp32c6", "esp32h2", "esp32h4", "esp32s3"]
temporary: true
reason: the other targets are not tested yet

examples/bluetooth/nimble/ble_dynamic_service:
enable:
- if: IDF_TARGET in ["esp32", "esp32c2", "esp32c3", "esp32c6", "esp32h2", "esp32h4", "esp32s3"]
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8 changes: 8 additions & 0 deletions examples/bluetooth/nimble/ble_cts/cts_cent/CMakeLists.txt
@@ -0,0 +1,8 @@
# The following lines of boilerplate have to be in your project's
# CMakeLists in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.16)

set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/bluetooth/nimble/common/nimble_central_utils)

include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(cts_cent)
156 changes: 156 additions & 0 deletions examples/bluetooth/nimble/ble_cts/cts_cent/README.md
@@ -0,0 +1,156 @@
| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S3 |
| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- |

# BLE CTS Cent Example

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

This example creates GATT client and performs passive scan, it then connects to peripheral device if the device advertises connectability and the device advertises support for the Current Time Service (0x1805) as primary service UUID.

It performs following GATT operations against the specified peer:

* Reads the Current Time characteristic.

If the peer does not support a required service, characteristic, or descriptor, then the peer lied when it claimed support for the Current Time Service! When this happens, or if a GATT procedure fails, this function immediately terminates the connection.

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

This example aims at understanding BLE service discovery, connection, encryption and characteristic operations.

To test this demo, use any BLE GATT server app that advertises support for the Current Time Service (0x1805) and includes it in the GATT database.

## How to Use Example

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

```bash
idf.py set-target <chip_name>
```

### Hardware Required

* A development board with ESP32/ESP32-C2/ESP32-C3/ESP32-S3/ESP32-H2/ESP32-C6 SoC (e.g., ESP32-DevKitC, ESP-WROVER-KIT, etc.)
* A USB cable for Power supply and programming

See [Development Boards](https://www.espressif.com/en/products/devkits) for more information about it.

### Configure the Project

Open the project configuration menu:

```bash
idf.py menuconfig
```

In the `Example Configuration` menu:

* Change the `Peer Address` option if needed.

### 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](https://idf.espressif.com/) for full steps to configure and use ESP-IDF to build projects.

## Example Output

This is the console output on successful connection:

```
I (358) BLE_INIT: BT controller compile version [59725b5]
I (358) BLE_INIT: Bluetooth MAC: 60:55:f9:68:c4:fa
I (368) phy_init: phy_version 1110,9c20f0a,Jul 27 2023,10:42:54
I (408) NimBLE_CTS_CENT: BLE Host Task Started
I (408) NimBLE: GAP procedure initiated: stop advertising.
I (408) NimBLE: GAP procedure initiated: discovery;
I (408) NimBLE: own_addr_type=0 filter_policy=0 passive=1 limited=0 filter_duplicates=1
I (418) NimBLE: duration=forever
I (428) NimBLE:
I (428) main_task: Returned from app_main()
I (628) NimBLE: GAP procedure initiated: connect;
I (628) NimBLE: peer_addr_type=1 peer_addr=
I (628) NimBLE: 6b:93:b5:30:71:cf
I (638) NimBLE: scan_itvl=16 scan_window=16 itvl_min=24 itvl_max=40 latency=0 supervision_timeout=256 min_ce_len=0 max_ce_len=0 own_addr_type=0
I (648) NimBLE:
I (908) NimBLE: Connection established
I (908) NimBLE:
I (918) NimBLE: Connection secured
I (1208) NimBLE: received indication; conn_handle=1 attr_handle=3 attr_len=4
I (1208) NimBLE: GAP procedure initiated:
I (1208) NimBLE: connection parameter update; conn_handle=1 itvl_min=6 itvl_max=6 latency=0 supervision_timeout=500 min_ce_len=0 max_ce_len=0
I (1228) NimBLE:
I (3568) NimBLE: encryption change event; status=0
I (3568) NimBLE: GATT procedure initiated: discover all services
I (3608) NimBLE: GATT procedure initiated: discover all characteristics;
I (3608) NimBLE: start_handle=1 end_handle=9
I (3658) NimBLE: GATT procedure initiated: discover all characteristics;
I (3658) NimBLE: start_handle=20 end_handle=26
I (3688) NimBLE: GATT procedure initiated: discover all characteristics;
I (3688) NimBLE: start_handle=134 end_handle=141
I (3718) NimBLE: GATT procedure initiated: discover all characteristics;
I (3718) NimBLE: start_handle=142 end_handle=151
I (3758) NimBLE: GATT procedure initiated: discover all characteristics;
I (3758) NimBLE: start_handle=152 end_handle=158
I (3788) NimBLE: GATT procedure initiated: discover all characteristics;
I (3788) NimBLE: start_handle=159 end_handle=65535
I (3818) NimBLE: GATT procedure initiated: discover all descriptors;
I (3818) NimBLE: chr_val_handle=136 end_handle=137
I (3838) NimBLE: GATT procedure initiated: discover all descriptors;
I (3838) NimBLE: chr_val_handle=144 end_handle=148
I (3898) NimBLE: GATT procedure initiated: discover all descriptors;
I (3898) NimBLE: chr_val_handle=150 end_handle=151
I (3908) NimBLE: GATT procedure initiated: discover all descriptors;
I (3908) NimBLE: chr_val_handle=161 end_handle=162
I (3928) NimBLE: GATT procedure initiated: discover all descriptors;
I (3928) NimBLE: chr_val_handle=164 end_handle=65535
I (3938) NimBLE: Service discovery complete; status=0 conn_handle=1
I (3938) NimBLE: GATT procedure initiated: read;
I (3938) NimBLE: att_handle=161
I (3958) NimBLE: Read Current time complete; status=0 conn_handle=1
I (3958) NimBLE: attr_handle=161 value=
I (3958) NimBLE: 0xe7
I (3958) NimBLE: :0x07
I (3958) NimBLE: :0x08
I (3968) NimBLE: :0x1e
I (3968) NimBLE: :0x14
I (3968) NimBLE: :0x25
I (3978) NimBLE: :0x02
I (3978) NimBLE: :0x03
I (3978) NimBLE: :0xf6
I (3978) NimBLE: :0x00
I (3988) NimBLE:
I (3988) NimBLE_CTS_CENT: Date : 30/8/2023
I (3998) NimBLE_CTS_CENT: hours : 20 minutes : 37
I (3998) NimBLE_CTS_CENT: seconds : 2
I (4008) NimBLE_CTS_CENT: fractions : 0
```

## Troubleshooting

For any technical queries, please open an [issue](https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.
@@ -0,0 +1,4 @@
set(srcs "main.c")

idf_component_register(SRCS "${srcs}"
INCLUDE_DIRS ".")
27 changes: 27 additions & 0 deletions examples/bluetooth/nimble/ble_cts/cts_cent/main/Kconfig.projbuild
@@ -0,0 +1,27 @@
menu "Example Configuration"

config EXAMPLE_PEER_ADDR
string "Peer Address"
default "ADDR_ANY"
help
Enter the peer address in aa:bb:cc:dd:ee:ff form to connect to a specific peripheral

config EXAMPLE_ENCRYPTION
bool
prompt "Enable Link Encryption"
default y
help
This enables bonding and encryption after connection has been established.

config EXAMPLE_EXTENDED_ADV
bool
depends on SOC_BLE_50_SUPPORTED
default y if SOC_ESP_NIMBLE_CONTROLLER
select BT_NIMBLE_EXT_ADV
prompt "Enable Extended Adv"
help
Use this option to enable extended advertising in the example.
If this option is disabled, ensure config BT_NIMBLE_EXT_ADV is
also disabled from Nimble stack menuconfig

endmenu
29 changes: 29 additions & 0 deletions examples/bluetooth/nimble/ble_cts/cts_cent/main/ble_cts_cent.h
@@ -0,0 +1,29 @@
/*
* SPDX-FileCopyrightText: 2017-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/

#ifndef H_BLE_CTS_CENT_
#define H_BLE_CTS_CENT_

#include "modlog/modlog.h"
#include "esp_central.h"
#ifdef __cplusplus
extern "C" {
#endif

struct ble_hs_adv_fields;
struct ble_gap_conn_desc;
struct ble_hs_cfg;
union ble_store_value;
union ble_store_key;

/* 16 BIT CCCD UUID */
#define BLE_SVC_CTS_DSC_CLT_CFG_UUID16 0x2902

#ifdef __cplusplus
}
#endif

#endif

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