Turn on client LED with another's client signal in Mesh Network

[JK0201]

Hello to everyone.

I´m working with the Light_switch examples (server-client-provisioner) in BLE Mesh 3.10 for nRF52 DK PCA10040.
I´m trying to make a network with 2 clients and 2 servers. Obviously, both clients can send a message to servers and I know that I can connect two clients eachother but what I want to know is if I can take the code of the server (the code that makes the server to turn on the LED when a client send a message) and put it on the client's code. That´s only to be sure (phisically) that the message was sent correctly, watching the LED.

I hope you can help me.

[Mttrinh]

Hi,

Yes, you should be able to do this. Additional to the code that makes the server turn on the LED, you need to add a Generic OnOoff Server model to the client example. 

[JK0201]

/*****CLIENT*****/

#include <stdint.h>
#include <string.h>

/* HAL */
#include "boards.h"
#include "simple_hal.h"
#include "app_timer.h"

/* Core */
#include "nrf_mesh_config_core.h"
#include "nrf_mesh_gatt.h"
#include "nrf_mesh_configure.h"
#include "nrf_mesh.h"
#include "mesh_stack.h"
#include "device_state_manager.h"
#include "access_config.h"

/* Provisioning and configuration */
#include "mesh_provisionee.h"
#include "mesh_app_utils.h"

/* Models */
#include "generic_onoff_client.h"

/* Logging and RTT */
#include "log.h"
#include "rtt_input.h"

/* Example specific includes */
#include "app_config.h"
#include "nrf_mesh_config_examples.h"
#include "light_switch_example_common.h"
#include "example_common.h"
#include "ble_softdevice_support.h"

#define APP_STATE_OFF                (0)
#define APP_STATE_ON                 (1)

#define APP_UNACK_MSG_REPEAT_COUNT   (2)

static generic_onoff_client_t m_clients[CLIENT_MODEL_INSTANCE_COUNT];
static bool                   m_device_provisioned;

Hello Mttrinh, thank you for answer.
Actually, in the main.c code, looks like the one above. I've done some chenges in the code, adding libraries, the generic_onoff_server model and another stuff:

/*****CLIENT*****/

#include <stdint.h>
#include <string.h>

/* HAL */
#include "boards.h"
#include "simple_hal.h"
#include "app_timer.h"

/* Core */
#include "nrf_mesh_config_core.h"
#include "nrf_mesh_gatt.h"
#include "nrf_mesh_configure.h"
#include "nrf_mesh.h"
#include "mesh_stack.h"
#include "device_state_manager.h"
#include "access_config.h"
#include "proxy.h"

/* Provisioning and configuration */
#include "mesh_provisionee.h"
#include "mesh_app_utils.h"

/* Models */
#include "generic_onoff_client.h"
#include "generic_onoff_server.h"

/* Logging and RTT */
#include "log.h"
#include "rtt_input.h"

/* Example specific includes */
#include "app_config.h"
#include "example_common.h"
#include "nrf_mesh_config_examples.h"
#include "light_switch_example_common.h"
#include "app_onoff.h"
#include "ble_softdevice_support.h"

#define APP_STATE_OFF                (0)
#define APP_STATE_ON                 (1)
#define ONOFF_SERVER_0_LED           (BSP_LED_0) //***********************
#define APP_ONOFF_ELEMENT_INDEX      (0)         //***********************

#define APP_UNACK_MSG_REPEAT_COUNT   (2)

static generic_onoff_client_t m_clients[CLIENT_MODEL_INSTANCE_COUNT];
static bool                   m_device_provisioned;

//SERVER FUNCTION
/*************************************************************************************************/
/*************************************************************************************************/
/*************************************************************************************************/
static void app_onoff_server_set_cb(const app_onoff_server_t * p_server, bool onoff);
static void app_onoff_server_get_cb(const app_onoff_server_t * p_server, bool * p_present_onoff);

/* Generic OnOff server structure definition and initialization */
APP_ONOFF_SERVER_DEF(m_onoff_server_0,
                     APP_CONFIG_FORCE_SEGMENTATION,
                     APP_CONFIG_MIC_SIZE,
                     app_onoff_server_set_cb,
                     app_onoff_server_get_cb)
/*************************************************************************************************/
/*************************************************************************************************/
/*************************************************************************************************/

Also, I copy-paste this part of the server code to the client:

//SERVER FUNCTION
/*************************************************************************************************/
/*************************************************************************************************/
/*************************************************************************************************/
/* Callback for updating the hardware state */
static void app_onoff_server_set_cb(const app_onoff_server_t * p_server, bool onoff)
{
    /* Resolve the server instance here if required, this example uses only 1 instance. */

    __LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "Setting GPIO value: %d\n", onoff)

    hal_led_pin_set(ONOFF_SERVER_0_LED, onoff);
}

/* Callback for reading the hardware state */
static void app_onoff_server_get_cb(const app_onoff_server_t * p_server, bool * p_present_onoff)
{
    /* Resolve the server instance here if required, this example uses only 1 instance. */

    *p_present_onoff = hal_led_pin_get(ONOFF_SERVER_0_LED);
}

static void app_model_init(void)
{
    /* Instantiate onoff server on element index APP_ONOFF_ELEMENT_INDEX */
    ERROR_CHECK(app_onoff_init(&m_onoff_server_0, APP_ONOFF_ELEMENT_INDEX));
    __LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "App OnOff Model Handle: %d\n", m_onoff_server_0.server.model_handle);
}
/*************************************************************************************************/
/*************************************************************************************************/
/*************************************************************************************************/

But I can't make it work.
Any ideas?

[Mttrinh]

Can you give me more details on what is not working? Do you get any error codes? 

[JK0201]

There´s no error codes and the client example is working normally.
It's like the server code wasn't there.

[Mttrinh]

Do the server model show up in nRF Mesh app?

[JK0201]

Sorry for not answering before.
The image shows all the elements that the Client has in the App.
Are the same elements that has in a "normal" client code.