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nRF52840 dongle: color light bulb

Hi,

I'm trying to mimic a fully functional zigbee color light bulb using the nRF52840 dongle.

Starting with the NRF5 Zigbee example light_bulb (examples/zigbee/light_control/), I began familiarizing with the code using EmStudio as recommended.

After flashing the build HEX (nRF connect -> Programmer) to the nRF52840 dongle, I was able to control the nRF52840 dongle using a 3rd party zigbee controller: great!

The next step would be to add the different missing parameters, starting with hue parameter, to make the light_bulb a color_light_bulb. This is where I am reaching out for support.

The closest example code I found to use as a starting point is the ble_zigbee_dynamic_color_light_bulb_thingy (examples/multiprotocol/experiemental/).

I tried to salvage some of its code back into the light_bulb ones, including the "zb_ha_dimmable_color_light.h" and "zigbee_color_light.h" and adapting on the go without success.

Unfortunately, the gap from light_bulb to ble_zigbee_dynamic_color_light_bulb_thingy is too complicated for my current skill level.

I am adding the code below, where I am at now.

Am I going in the right direction? Any tips?

Thanks!

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 */
/** @file
 *
 * @defgroup zigbee_examples_light_bulb main.c
 * @{
 * @ingroup zigbee_examples
 * @brief Dimmable light sample (HA profile)
 */

#include "sdk_config.h"
#include "zboss_api.h"
#include "zboss_api_addons.h"
#include "zb_mem_config_med.h"
#include "zb_ha_dimmable_color_light.h"
#include "zb_error_handler.h"
#include "zb_nrf52_internal.h"
#include "zigbee_helpers.h"
#include "zigbee_color_light.h"

#include "bsp.h"
#include "boards.h"
#include "app_pwm.h"
#include "app_timer.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

#define MAX_CHILDREN                      10                                    /**< The maximum amount of connected devices. Setting this value to 0 disables association to this device.  */
#define IEEE_CHANNEL_MASK                 0x07fff800U                            /**< Scan only one, predefined channel to find the coordinator.(1l << ZIGBEE_CHANNEL) */
#define HA_COLOR_LIGHT_ENDPOINT           10                                    /**< Device endpoint, used to receive light controlling commands. */
#define ERASE_PERSISTENT_CONFIG           ZB_FALSE                              /**< Do not erase NVRAM to save the network parameters after device reboot or power-off. */
#define BULB_PWM_NAME                     PWM1                                  /**< PWM instance used to drive dimmable light bulb. */
#define BULB_PWM_TIMER                    2                                     /**< Timer number used by PWM. */

/* Basic cluster attributes initial values. */
#define BULB_INIT_BASIC_APP_VERSION       01                                    /**< Version of the application software (1 byte). */
#define BULB_INIT_BASIC_STACK_VERSION     10                                    /**< Version of the implementation of the Zigbee stack (1 byte). */
#define BULB_INIT_BASIC_HW_VERSION        11                                    /**< Version of the hardware of the device (1 byte). */
#define BULB_INIT_BASIC_MANUF_NAME        "Nordic"                              /**< Manufacturer name (32 bytes). */
#define BULB_INIT_BASIC_MODEL_ID          "Dimable_Light_v0.1"                  /**< Model number assigned by manufacturer (32-bytes long string). */
#define BULB_INIT_BASIC_DATE_CODE         "20180416"                            /**< First 8 bytes specify the date of manufacturer of the device in ISO 8601 format (YYYYMMDD). The rest (8 bytes) are manufacturer specific. */
#define BULB_INIT_BASIC_POWER_SOURCE      ZB_ZCL_BASIC_POWER_SOURCE_DC_SOURCE   /**< Type of power sources available for the device. For possible values see section 3.2.2.2.8 of ZCL specification. */
#define BULB_INIT_BASIC_LOCATION_DESC     "Office desk"                         /**< Describes the physical location of the device (16 bytes). May be modified during commisioning process. */
#define BULB_INIT_BASIC_PH_ENV            ZB_ZCL_BASIC_ENV_UNSPECIFIED          /**< Describes the type of physical environment. For possible values see section 3.2.2.2.10 of ZCL specification. */

#ifdef  BOARD_PCA10059                                                          /**< If it is Dongle */
#define IDENTIFY_MODE_BSP_EVT             BSP_EVENT_KEY_0                       /**< Button event used to enter the Bulb into the Identify mode. */
#define ZIGBEE_NETWORK_STATE_LED          BSP_BOARD_LED_0                       /**< LED indicating that light switch successfully joind Zigbee network. */
#else
#define IDENTIFY_MODE_BSP_EVT             BSP_EVENT_KEY_3                       /**< Button event used to enter the Bulb into the Identify mode. */
#define ZIGBEE_NETWORK_STATE_LED          BSP_BOARD_LED_2                       /**< LED indicating that light switch successfully joind Zigbee network. */
#endif
#define BULB_LED                          BSP_BOARD_LED_3                       /**< LED immitaing dimmable light bulb. */

#if !defined ZB_ROUTER_ROLE
#error Define ZB_ROUTER_ROLE to compile light bulb (Router) source code.
#endif


/* Declare context variable and cluster attribute list for first endpoint */
zb_color_light_ctx_t m_color_light_ctx_1;

ZB_DECLARE_COLOR_CONTROL_CLUSTER_ATTR_LIST(m_color_light_ctx_1,
                                           m_color_light_clusters_1);
                                           
/* Declare two endpoints for color controllable and dimmable light bulbs */
ZB_ZCL_DECLARE_COLOR_DIMMABLE_LIGHT_EP(m_color_light_ep_1,
                                       HA_COLOR_LIGHT_ENDPOINT,
                                       m_color_light_clusters_1);
                                       
/* Declare context for endpoints */
ZBOSS_DECLARE_DEVICE_CTX_1_EP(m_color_light_ctx,
                              m_color_light_ep_1);

APP_PWM_INSTANCE(BULB_PWM_NAME, BULB_PWM_TIMER);
//static bulb_device_ctx_t m_dev_ctx;


/**@brief Function for initializing the application timer.
 */
static void timer_init(void)
{
    uint32_t error_code = app_timer_init();
    APP_ERROR_CHECK(error_code);
}

/**@brief Function for initializing the nrf log module.
 */
static void log_init(void)
{
    ret_code_t err_code = NRF_LOG_INIT(NULL);
    APP_ERROR_CHECK(err_code);

    NRF_LOG_DEFAULT_BACKENDS_INIT();
}

/**@brief Sets brightness of on-board LED
 *
 * @param[in] brightness_level Brightness level, allowed values 0 ... 255, 0 - turn off, 255 - full brightness
 */
static void light_bulb_onboard_set_brightness(zb_uint8_t brightness_level)
{
    app_pwm_duty_t app_pwm_duty;

    /* Scale level value: APP_PWM uses 0-100 scale, but Zigbee level control cluster uses values from 0 up to 255. */
    app_pwm_duty = (brightness_level * 100U) / 255U;

    /* Set the duty cycle - keep trying until PWM is ready. */
    while (app_pwm_channel_duty_set(&BULB_PWM_NAME, 0, app_pwm_duty) == NRF_ERROR_BUSY)
    {
    }
}



/**@brief Sets brightness of bulb luminous executive element
 *
 * @param[in] brightness_level Brightness level, allowed values 0 ... 255, 0 - turn off, 255 - full brightness
 */
static void light_bulb_set_brightness(zb_uint8_t brightness_level)
{
    light_bulb_onboard_set_brightness(brightness_level);
}

/**@brief Function for setting the light bulb brightness.
  *
  * @param[in]   new_level   Light bulb brightness value.
 */
static void level_control_set_value(zb_uint16_t new_level)
{
    NRF_LOG_INFO("Set level value: %i", new_level);

    ZB_ZCL_SET_ATTRIBUTE(HA_COLOR_LIGHT_ENDPOINT,                                       
                         ZB_ZCL_CLUSTER_ID_LEVEL_CONTROL,            
                         ZB_ZCL_CLUSTER_SERVER_ROLE,                 
                         ZB_ZCL_ATTR_LEVEL_CONTROL_CURRENT_LEVEL_ID, 
                         (zb_uint8_t *)&new_level,                                       
                         ZB_FALSE);                                  

    /* According to the table 7.3 of Home Automation Profile Specification v 1.2 rev 29, chapter 7.1.3. */
    if (new_level == 0)
    {
        zb_uint8_t value = ZB_FALSE;
        ZB_ZCL_SET_ATTRIBUTE(HA_COLOR_LIGHT_ENDPOINT, 
                             ZB_ZCL_CLUSTER_ID_ON_OFF,    
                             ZB_ZCL_CLUSTER_SERVER_ROLE,  
                             ZB_ZCL_ATTR_ON_OFF_ON_OFF_ID,
                             &value,                        
                             ZB_FALSE);                   
    }
    else
    {
        zb_uint8_t value = ZB_TRUE;
        ZB_ZCL_SET_ATTRIBUTE(HA_COLOR_LIGHT_ENDPOINT, 
                             ZB_ZCL_CLUSTER_ID_ON_OFF,    
                             ZB_ZCL_CLUSTER_SERVER_ROLE,  
                             ZB_ZCL_ATTR_ON_OFF_ON_OFF_ID,
                             &value,                        
                             ZB_FALSE);
    }

    light_bulb_set_brightness(new_level);
}

/**@brief Function for setting the light bulb color.
  *
  * @param[in]   new_level   Light bulb color hue value.
 */
static void color_control_set_value(zb_uint16_t new_level)
{
    NRF_LOG_INFO("Set color hue value: %i", new_level);

    ZB_ZCL_SET_ATTRIBUTE(HA_COLOR_LIGHT_ENDPOINT,                                       
                         ZB_ZCL_CLUSTER_ID_LEVEL_CONTROL,            
                         ZB_ZCL_CLUSTER_SERVER_ROLE,                 
                         ZB_ZCL_ATTR_COLOR_CONTROL_CURRENT_HUE_ID, 
                         (zb_uint8_t *)&new_level,                                       
                         ZB_FALSE);                                  

    /* According to the table 7.3 of Home Automation Profile Specification v 1.2 rev 29, chapter 7.1.3. */
    if (new_level == 0)
    {
        zb_uint8_t value = ZB_FALSE;
        ZB_ZCL_SET_ATTRIBUTE(HA_COLOR_LIGHT_ENDPOINT, 
                             ZB_ZCL_CLUSTER_ID_ON_OFF,    
                             ZB_ZCL_CLUSTER_SERVER_ROLE,  
                             ZB_ZCL_ATTR_ON_OFF_ON_OFF_ID,
                             &value,                        
                             ZB_FALSE);                   
    }
    else
    {
        zb_uint8_t value = ZB_TRUE;
        ZB_ZCL_SET_ATTRIBUTE(HA_COLOR_LIGHT_ENDPOINT, 
                             ZB_ZCL_CLUSTER_ID_ON_OFF,    
                             ZB_ZCL_CLUSTER_SERVER_ROLE,  
                             ZB_ZCL_ATTR_ON_OFF_ON_OFF_ID,
                             &value,                        
                             ZB_FALSE);
    }

    //light_bulb_set_brightness(new_level); //need to call func to change LED
}



/**@brief Function for turning ON/OFF the light bulb.
 *
 * @param[in]   on   Boolean light bulb state.
 */
static void on_off_set_value(zb_bool_t on)
{
    NRF_LOG_INFO("Set ON/OFF value: %i", on);

    ZB_ZCL_SET_ATTRIBUTE(HA_COLOR_LIGHT_ENDPOINT, 
                         ZB_ZCL_CLUSTER_ID_ON_OFF,    
                         ZB_ZCL_CLUSTER_SERVER_ROLE,  
                         ZB_ZCL_ATTR_ON_OFF_ON_OFF_ID,
                         (zb_uint8_t *)&on,                        
                         ZB_FALSE);

    if (on)
    {
        level_control_set_value(m_color_light_ctx_1.level_control_attr.current_level);
    }
    else
    {
        light_bulb_set_brightness(0U);
    }
}

/**@brief Callback for button events.
 *
 * @param[in]   evt      Incoming event from the BSP subsystem.
 */
static void buttons_handler(bsp_event_t evt)
{
    zb_ret_t zb_err_code;

    switch(evt)
    {
        case IDENTIFY_MODE_BSP_EVT:
            /* Check if endpoint is in identifying mode, if not put desired endpoint in identifying mode. */
            if (m_color_light_ctx_1.identify_attr.identify_time == ZB_ZCL_IDENTIFY_IDENTIFY_TIME_DEFAULT_VALUE)
            {
                NRF_LOG_INFO("Bulb put in identifying mode");
                zb_err_code = zb_bdb_finding_binding_target(HA_COLOR_LIGHT_ENDPOINT);
                ZB_ERROR_CHECK(zb_err_code);
            }
            else
            {
                NRF_LOG_INFO("Cancel F&B target procedure");
                zb_bdb_finding_binding_target_cancel();
            }
            break;

        default:
            NRF_LOG_INFO("Unhandled BSP Event received: %d", evt);
            break;
    }
}


/**@brief Function for initializing LEDs and a single PWM channel.
 */
static void leds_buttons_init(void)
{
    ret_code_t       err_code;
    app_pwm_config_t pwm_cfg = APP_PWM_DEFAULT_CONFIG_1CH(5000L, bsp_board_led_idx_to_pin(BULB_LED));

    /* Initialize all LEDs and buttons. */
    err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, buttons_handler);
    APP_ERROR_CHECK(err_code);
    /* By default the bsp_init attaches BSP_KEY_EVENTS_{0-4} to the PUSH events of the corresponding buttons. */

    /* Initialize PWM running on timer 1 in order to control dimmable light bulb. */
    err_code = app_pwm_init(&BULB_PWM_NAME, &pwm_cfg, NULL);
    APP_ERROR_CHECK(err_code);

    app_pwm_enable(&BULB_PWM_NAME);

    while (app_pwm_channel_duty_set(&BULB_PWM_NAME, 0, 99) == NRF_ERROR_BUSY)
    {
    }
}

/**@brief Function for initializing all clusters attributes.
 */
static void bulb_clusters_attr_init(void)
{
    /* Basic cluster attributes data */
    m_color_light_ctx_1.basic_attr.zcl_version   = ZB_ZCL_VERSION;
    m_color_light_ctx_1.basic_attr.app_version   = BULB_INIT_BASIC_APP_VERSION;
    m_color_light_ctx_1.basic_attr.stack_version = BULB_INIT_BASIC_STACK_VERSION;
    m_color_light_ctx_1.basic_attr.hw_version    = BULB_INIT_BASIC_HW_VERSION;

    /* Use ZB_ZCL_SET_STRING_VAL to set strings, because the first byte should
     * contain string length without trailing zero.
     *
     * For example "test" string wil be encoded as:
     *   [(0x4), 't', 'e', 's', 't']
     */
    ZB_ZCL_SET_STRING_VAL(m_color_light_ctx_1.basic_attr.mf_name,
                          BULB_INIT_BASIC_MANUF_NAME,
                          ZB_ZCL_STRING_CONST_SIZE(BULB_INIT_BASIC_MANUF_NAME));

    ZB_ZCL_SET_STRING_VAL(m_color_light_ctx_1.basic_attr.model_id,
                          BULB_INIT_BASIC_MODEL_ID,
                          ZB_ZCL_STRING_CONST_SIZE(BULB_INIT_BASIC_MODEL_ID));

    ZB_ZCL_SET_STRING_VAL(m_color_light_ctx_1.basic_attr.date_code,
                          BULB_INIT_BASIC_DATE_CODE,
                          ZB_ZCL_STRING_CONST_SIZE(BULB_INIT_BASIC_DATE_CODE));

    m_color_light_ctx_1.basic_attr.power_source = BULB_INIT_BASIC_POWER_SOURCE;

    ZB_ZCL_SET_STRING_VAL(m_color_light_ctx_1.basic_attr.location_id,
                          BULB_INIT_BASIC_LOCATION_DESC,
                          ZB_ZCL_STRING_CONST_SIZE(BULB_INIT_BASIC_LOCATION_DESC));


    m_color_light_ctx_1.basic_attr.ph_env = BULB_INIT_BASIC_PH_ENV;

    /* Identify cluster attributes data */
    m_color_light_ctx_1.identify_attr.identify_time = ZB_ZCL_IDENTIFY_IDENTIFY_TIME_DEFAULT_VALUE;

    /* On/Off cluster attributes data */
    m_color_light_ctx_1.on_off_attr.on_off = (zb_bool_t)ZB_ZCL_ON_OFF_IS_ON;

    m_color_light_ctx_1.level_control_attr.current_level  = ZB_ZCL_LEVEL_CONTROL_LEVEL_MAX_VALUE;
    m_color_light_ctx_1.level_control_attr.remaining_time = ZB_ZCL_LEVEL_CONTROL_REMAINING_TIME_DEFAULT_VALUE;

    ZB_ZCL_SET_ATTRIBUTE(HA_COLOR_LIGHT_ENDPOINT, 
                         ZB_ZCL_CLUSTER_ID_ON_OFF,    
                         ZB_ZCL_CLUSTER_SERVER_ROLE,  
                         ZB_ZCL_ATTR_ON_OFF_ON_OFF_ID,
                         (zb_uint8_t *)&m_color_light_ctx_1.on_off_attr.on_off,                        
                         ZB_FALSE);                   

    ZB_ZCL_SET_ATTRIBUTE(HA_COLOR_LIGHT_ENDPOINT,                                       
                         ZB_ZCL_CLUSTER_ID_LEVEL_CONTROL,            
                         ZB_ZCL_CLUSTER_SERVER_ROLE,                 
                         ZB_ZCL_ATTR_LEVEL_CONTROL_CURRENT_LEVEL_ID, 
                         (zb_uint8_t *)&m_color_light_ctx_1.level_control_attr.current_level,                                       
                         ZB_FALSE);                                  
}

/**@brief Function which tries to sleep down the MCU 
 *
 * Function which sleeps the MCU on the non-sleepy End Devices to optimize the power saving.
 * The weak definition inside the OSIF layer provides some minimal working template
 */
zb_void_t zb_osif_go_idle(zb_void_t)
{
    //TODO: implement your own logic if needed
    zb_osif_wait_for_event();
}

/**@brief Callback function for handling ZCL commands.
 *
 * @param[in]   bufid   Reference to Zigbee stack buffer used to pass received data.
 */
static zb_void_t zcl_device_cb(zb_bufid_t bufid)
{
    zb_uint8_t                       cluster_id;
    zb_uint8_t                       attr_id;
    zb_zcl_device_callback_param_t * p_device_cb_param = ZB_BUF_GET_PARAM(bufid, zb_zcl_device_callback_param_t);

    NRF_LOG_INFO("zcl_device_cb id %hd", p_device_cb_param->device_cb_id);

    /* Set default response value. */
    p_device_cb_param->status = RET_OK;

    switch (p_device_cb_param->device_cb_id)
    {
        case ZB_ZCL_LEVEL_CONTROL_SET_VALUE_CB_ID:
            NRF_LOG_INFO("Level control setting to %d", p_device_cb_param->cb_param.level_control_set_value_param.new_value);
            level_control_set_value(p_device_cb_param->cb_param.level_control_set_value_param.new_value);
            break;

        case ZB_ZCL_SET_ATTR_VALUE_CB_ID:
            cluster_id = p_device_cb_param->cb_param.set_attr_value_param.cluster_id;
            attr_id    = p_device_cb_param->cb_param.set_attr_value_param.attr_id;

            if (cluster_id == ZB_ZCL_CLUSTER_ID_ON_OFF)
            {
                uint8_t value = p_device_cb_param->cb_param.set_attr_value_param.values.data8;

                NRF_LOG_INFO("on/off attribute setting to %hd", value);
                if (attr_id == ZB_ZCL_ATTR_ON_OFF_ON_OFF_ID)
                {
                    on_off_set_value((zb_bool_t) value);
                }
            }
            else if (cluster_id == ZB_ZCL_CLUSTER_ID_LEVEL_CONTROL)
            {
                uint16_t value = p_device_cb_param->cb_param.set_attr_value_param.values.data16;

                NRF_LOG_INFO("level control attribute setting to %hd", value);
                if (attr_id == ZB_ZCL_ATTR_LEVEL_CONTROL_CURRENT_LEVEL_ID)
                {
                    level_control_set_value(value);
                }
            }
            else if (cluster_id == ZB_ZCL_CLUSTER_ID_COLOR_CONTROL)
            {
                uint16_t value = p_device_cb_param->cb_param.set_attr_value_param.values.data16;

                NRF_LOG_INFO("color control attribute setting to %hd", value);
                if (attr_id == ZB_ZCL_ATTR_COLOR_CONTROL_CURRENT_HUE_ID)
                {
                    color_control_set_value(value);
                }
            }
            else
            {
                /* Other clusters can be processed here */
                NRF_LOG_INFO("Unhandled cluster attribute id: %d", cluster_id);
            }
            break;

        default:
            p_device_cb_param->status = RET_ERROR;
            break;
    }

    NRF_LOG_INFO("zcl_device_cb status: %hd", p_device_cb_param->status);
}

/**@brief Zigbee stack event handler.
 *
 * @param[in]   bufid   Reference to the Zigbee stack buffer used to pass signal.
 */
void zboss_signal_handler(zb_bufid_t bufid)
{
    /* Update network status LED */
    zigbee_led_status_update(bufid, ZIGBEE_NETWORK_STATE_LED);

    /* No application-specific behavior is required. Call default signal handler. */
    ZB_ERROR_CHECK(zigbee_default_signal_handler(bufid));

    if (bufid)
    {
        zb_buf_free(bufid);
    }
}

/**@brief Function for application main entry.
 */
int main(void)
{
    zb_ret_t       zb_err_code;
    zb_ieee_addr_t ieee_addr;

    /* Initialize timer, logging system and GPIOs. */
    timer_init();
    log_init();
    leds_buttons_init();

    /* Set Zigbee stack logging level and traffic dump subsystem. */
    ZB_SET_TRACE_LEVEL(ZIGBEE_TRACE_LEVEL);
    ZB_SET_TRACE_MASK(ZIGBEE_TRACE_MASK);
    ZB_SET_TRAF_DUMP_OFF();

    /* Initialize Zigbee stack. */
    ZB_INIT("led_bulb");

    /* Set device address to the value read from FICR registers. */
    zb_osif_get_ieee_eui64(ieee_addr);
    zb_set_long_address(ieee_addr);

    /* Set static long IEEE address. */
    zb_set_network_router_role(IEEE_CHANNEL_MASK);
    zb_set_max_children(MAX_CHILDREN);
    zigbee_erase_persistent_storage(ERASE_PERSISTENT_CONFIG);
    zb_set_keepalive_timeout(ZB_MILLISECONDS_TO_BEACON_INTERVAL(3000));

    /* Initialize application context structure. */
    UNUSED_RETURN_VALUE(ZB_MEMSET(&m_color_light_ctx_1, 0, sizeof(m_color_light_ctx_1)));

    /* Register callback for handling ZCL commands. */
    ZB_ZCL_REGISTER_DEVICE_CB(zcl_device_cb);

    /* Register dimmer switch device context (endpoints). */
    ZB_AF_REGISTER_DEVICE_CTX(&m_color_light_ctx_1); //warning here during build

    bulb_clusters_attr_init();
    level_control_set_value(m_color_light_ctx_1.level_control_attr.current_level);

    /** Start Zigbee Stack. */
    zb_err_code = zboss_start_no_autostart();
    ZB_ERROR_CHECK(zb_err_code);

    while(1)
    {
        zboss_main_loop_iteration();
        UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());
    }
}


/**
 * @}
 */

Parents
  • I tried to salvage some of its code back into the light_bulb ones, including the "zb_ha_dimmable_color_light.h" and "zigbee_color_light.h" and adapting on the go without success.

     So what did you do? Do you have any form of output from the dongle? Is it connecting to the network? Can you adjust the light level, or nothing?

    The challenge related to developing on the nRF52840 dongle is that it doesn't have a programmer. I strongly suggest that you get hold of a DK (which has an on board debugger). Developing without a debugger is like driving blind. Extremely difficult. 

    Best regards,

    Edvin

  • Via the 3rd party controller, I can send and receive info from the nRF52840 dongle.

    The ON/OFF, brightness and hue properties are updated properly (when checking the zigbee message receive) but only the brightness is physically working.

    Indeed, you have a good analogy there. Is there additional debugging info I could retrieve of the nRF52840 dongle, reading it via the USB port, adding library/softdevice into the HEX file?

    A nRF52840 DK would be a great tool to have, hmmm.

    Thanks for your inputs!

Reply
  • Via the 3rd party controller, I can send and receive info from the nRF52840 dongle.

    The ON/OFF, brightness and hue properties are updated properly (when checking the zigbee message receive) but only the brightness is physically working.

    Indeed, you have a good analogy there. Is there additional debugging info I could retrieve of the nRF52840 dongle, reading it via the USB port, adding library/softdevice into the HEX file?

    A nRF52840 DK would be a great tool to have, hmmm.

    Thanks for your inputs!

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