MQTT sample problem

I' m using custom board of nrf5340 with nrf7002, and the SDK version is ncs v2.5.2.

I've tried to build and run, but the log in RTT viewer is only print the line "Bringing network interface up and connecting to the network", It seems the program is stuck, and it didn't proceed to execute.

  

and I wondered it is because of the MAC address, so I added the "set_mac _address" function into "network.c" and executed it in the function "network_task", but it printed other errors below.

prj.conf

#prj.conf
#
# Copyright (c) 2023 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
#

# Common configurations for all boards

CONFIG_WIFI=y
CONFIG_WIFI_NRF700X=y
CONFIG_NET_L2_WIFI_MGMT=y
CONFIG_HEAP_MEM_POOL_SIZE=25000

# System settings
CONFIG_NEWLIB_LIBC=y

# Networking
CONFIG_NETWORKING=y
CONFIG_NET_L2_ETHERNET=y
CONFIG_NET_NATIVE=y
CONFIG_NET_OFFLOAD=y

CONFIG_INIT_STACKS=y

# Memories
CONFIG_MAIN_STACK_SIZE=4096

# General
CONFIG_HW_ID_LIBRARY=y
CONFIG_ASSERT=y
CONFIG_WIFI_CREDENTIALS_STATIC_SSID="allen"
CONFIG_WIFI_CREDENTIALS_STATIC_PASSWORD="123" 
CONFIG_WIFI_CREDENTIALS_STATIC_TYPE_OPEN=y

CONFIG_MQTT_SAMPLE_TRANSPORT_BROKER_HOSTNAME="test.mosquitto.org"
CONFIG_MQTT_SAMPLE_TRANSPORT_PUBLISH_TOPIC="my/publish/topic"
CONFIG_MQTT_SAMPLE_TRANSPORT_SUBSCRIBE_TOPIC="my/subscribe/topic"

CONFIG_MQTT_SAMPLE_LED=n
CONFIG_DK_LIBRARY=n

# CONFIG_MQTT_SAMPLE_TRIGGER_THREAD_STACK_SIZE=2048
# Logging
CONFIG_LOG=y
# CONFIG_NET_LOG=y
# CONFIG_MQTT_LOG_LEVEL_DBG=y
# Networking
CONFIG_NETWORKING=y
CONFIG_NET_SOCKETS_OFFLOAD=y
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_POSIX_NAMES=y
CONFIG_NET_IPV4=y
CONFIG_NET_TCP=y
CONFIG_NET_NATIVE=y
CONFIG_NET_CONNECTION_MANAGER=y

# ZBus
CONFIG_ZBUS=y

# Zephyr state framework
CONFIG_SMF=y

# MQTT
CONFIG_MQTT_HELPER=y
CONFIG_MQTT_CLEAN_SESSION=y

#config RTT
CONFIG_LOG=y
CONFIG_LOG_PRINTK=y
# CONFIG_LOG_MODE_DEFERRED=y
CONFIG_SERIAL=n
CONFIG_UART_CONSOLE=n
CONFIG_USE_SEGGER_RTT=y
CONFIG_CONSOLE=y
CONFIG_RTT_CONSOLE=y
CONFIG_LOG_BACKEND_RTT=y
CONFIG_LOG_BACKEND_UART=n
CONFIG_SEGGER_RTT_BUFFER_SIZE_UP=4096
CONFIG_LOG_BUFFER_SIZE=4096
# Disable internal DCDC
CONFIG_BOARD_ENABLE_DCDC_APP=n
CONFIG_BOARD_ENABLE_DCDC_NET=n
CONFIG_BOARD_ENABLE_DCDC_HV=n

# Use internal capacitor for 32M xtal and set capacitor value to 8.5pF 
# (ranging from 7.0 pF to 20.0 pF in 0.5 pF steps
# can be enabled on pins XC1 and XC2. This option specifies doubled
# capacitance value for the two capacitors. Set it to 14 to get 7.0 pF
# for each capacitor, 15 to get 7.5 pF, and so on.
# )
CONFIG_SOC_HFXO_CAP_INTERNAL=y
CONFIG_SOC_HFXO_CAP_INT_VALUE_X2=17
 
#  Use internal capacitor for 32k xtal and set capacitor value to 7pF 
# (only 4 options of internal capacitor value settings for 32k xtal
#   -INT_6PF
#   -INT_7PF
#   -INT_9PF
#   - USE external capacitor)
CONFIG_SOC_ENABLE_LFXO=y
CONFIG_SOC_LFXO_CAP_INT_7PF=y

Below is the function what I added. And this function is executed normally in the Scan sample.

int8_t wifi_set_mac_address()
{
	struct net_if *iface = net_if_get_default();
	uint8_t mac_addr[6] = {0xF0, 0xCE, 0x36, 0x00, 0x00, 0x4A};

	struct ethernet_req_params eth_param;
	memcpy(eth_param.mac_address.addr, mac_addr, 6);

	// if (net_if_down(iface))
	// {
	// 	printk("<Err> Couldn't shutdown WiFi interface\n");
	// 	return -1;
	// }
	printk("<Inf> Setting MAC address\n");
	if (net_mgmt(NET_REQUEST_ETHERNET_SET_MAC_ADDRESS, iface, &eth_param, sizeof(struct ethernet_req_params)))
	{
		printk("<Err> Couldn't set new MAC Address\n");
		return -2;
	}

	int ret = memcmp(net_if_get_link_addr(iface)->addr, mac_addr, sizeof(mac_addr));
	if (ret)
	{
		printk("<Err> Couldn't change MAC address\n");
	}

	if (net_if_up(iface))
	{
		printk("<Err> Couldn't wake up interface\n");
		return -3;
	}

	return 0;
}

How can I run the MQTT sample correctly?

Parents
  • Hi,

    Can you provide a link to the MQTT sample which you used?

    Best regards,
    Dejan

  • Hi, 

    I actually build the project using the build button, I think the build command is "west build --build-dir".

    The "nrf7002_nrf5340_cpuapp.conf file" is only needed to be put in the boards folder and the name is same with the board's name. Then it will be used automatically. But you need to create a new sample project to build with this if you 've already built a project without this.

    1007.nrf7002dk_nrf5340_cpuapp.conf

    Regards,
    Allen
  • Hi Allen,

    Could you provide your full build log?

    Best regards,
    Dejan

  • Hi,

    here is the full build log.

    build with the custom board of nrf5340_nrf7002

    build with the nrf7002DK

    Regards,

    Allen

  • Hi Allen,

    Can you try to change your MQTT broker to broker.hivemq.com (in Kconfig.transport) and provide application logs for both the nrf7002-dk and your custom board?

    config MQTT_SAMPLE_TRANSPORT_BROKER_HOSTNAME
    	string "MQTT broker hostname"
    	#default "test.mosquitto.org"
    	default "broker.hivemq.com"

    EDIT: Please include CONFIG_WPA_SUPP_LOG_LEVEL_DBG=y in your configuration.

    Best regards,
    Dejan

  • Hi, 

    I've changed my MQTT broker to broker.hivemq.com and include CONFIG_WPA_SUPP_LOG_LEVEL_DBG=y, but it's still the same output.

    -

    Custom Board

    with set_mac_address function.

    00> [00:00:00.339,782] <inf> wifi_nrf: nrf_wifi_fmac_otp_mac_addr_get: MAC addr not programmed in OTP
    00> 
    00> [00:00:00.340,240] <err> wifi_nrf: nrf_wifi_if_start_zep: Invalid MAC address: 00:00:00:00:00:00
    00> 
    00> [00:00:00.346,374] <inf> fs_nvs: 6 Sectors of 4096 bytes
    00> [00:00:00.346,405] <inf> fs_nvs: alloc wra: 0, fe8
    00> [00:00:00.346,405] <inf> fs_nvs: data wra: 0, 0
    00> *** Booting nRF Connect SDK v2.5.2 ***
    00> <Inf> Setting MAC address
    00> [00:00:00.349,273] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_UNINIT --> MQTT_STATE_DISCONNECTED
    00> [00:00:00.349,517] <dbg> mqtt_helper: mqtt_helper_poll_loop: Waiting for connection_poll_sem
    00> wake up interface err: 0
    00> [00:00:00.482,391] <err> wifi_nrf: nrf_wifi_wpa_supp_event_get_wiphy: Invalid parameters
    00> 
    00> [00:00:10.473,236] <err> wpa_supp: 'INTERFACE_ADD wlan0  zephyr  zephyr  zephyr        ' command timed out.
    00> 
    00> [00:00:10.473,327] <err> wpa_supp: Failed to add interface: wlan0
    00> [00:00:10.473,388] <inf> network: Bringing network interface up and connecting to the network

    without set_mac_address function.

    [00:00:00.341,430] <inf> wifi_nrf: nrf_wifi_fmac_otp_mac_addr_get: MAC addr not programmed in OTP
    
    [00:00:00.341,888] <err> wifi_nrf: nrf_wifi_if_start_zep: Invalid MAC address: 00:00:00:00:00:00
    
    [00:00:00.347,930] <inf> fs_nvs: 6 Sectors of 4096 bytes
    [00:00:00.347,961] <inf> fs_nvs: alloc wra: 0, fe8
    [00:00:00.347,961] <inf> fs_nvs: data wra: 0, 0
    *** Booting nRF Connect SDK v2.5.2 ***
    [00:00:00.350,494] <inf> network: Bringing network interface up and connecting to the network
    [00:00:00.350,616] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_UNINIT --> MQTT_STATE_DISCONNECTED
    [00:00:00.350,860] <dbg> mqtt_helper: mqtt_helper_poll_loop: Waiting for connection_poll_sem

    -

    -

    I've tried the nrf7002DK, MQTT connected and transported successfully on original MQTT broker "test.mosquitto.org" without  set_mac_address function ,and it failed when adding set_mac_address function.

    -

    NRF7002DK

    with set_mac_address function.

    00> [00:00:00.470,825] <inf> fs_nvs: 6 Sectors of 4096 bytes
    00> [00:00:00.470,855] <inf> fs_nvs: alloc wra: 0, fe8
    00> [00:00:00.470,886] <inf> fs_nvs: data wra: 0, 0
    00> *** Booting nRF Connect SDK v2.5.2 ***
    00> <Inf> Setting MAC address
    00> wake up interface err: -120
    00> <Err> Couldn't wake up interface
    00> [00:00:00.473,358] <inf> network: Bringing network interface up and connecting to the network
    00> [00:00:00.473,449] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_UNINIT --> MQTT_STATE_DISCONNECTED
    00> [00:00:00.475,646] <dbg> mqtt_helper: mqtt_helper_poll_loop: Waiting for connection_poll_sem
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> [00:00:02.407,104] <inf> wifi_mgmt_ext: Connection requested
    00> OK
    00> [00:00:33.420,623] <err> wpa_supp: Connection timed out, timeout: 30 seconds

    without set_mac_address function.

    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> [00:00:00.758,331] <inf> fs_nvs: 6 Sectors of 4096 bytes
    00> [00:00:00.758,361] <inf> fs_nvs: alloc wra: 0, fe8
    00> [00:00:00.758,361] <inf> fs_nvs: data wra: 0, 0
    00> *** Booting nRF Connect SDK v2.5.2 ***
    00> [00:00:00.761,016] <inf> network: Bringing network interface up and connecting to the network
    00> [00:00:00.761,138] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_UNINIT --> MQTT_STATE_DISCONNECTED
    00> [00:00:00.763,427] <dbg> mqtt_helper: mqtt_helper_poll_loop: Waiting for connection_poll_sem
    00> [00:00:02.697,357] <inf> wifi_mgmt_ext: Connection requested
    00> [00:00:07.293,762] <inf> network: Network connectivity established
    00> [00:00:12.295,166] <dbg> mqtt_helper: broker_init: Resolving IP address for test.mosquitto.org
    00> [00:00:13.434,295] <dbg> mqtt_helper: broker_init: IPv4 Address found 91.121.93.94 (AF_INET)
    00> [00:00:13.434,356] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_DISCONNECTED --> MQTT_STATE_TRANSPORT_CONNECTING
    00> [00:00:13.818,420] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_TRANSPORT_CONNECTING --> MQTT_STATE_TRANSPORT_CONNECTED
    00> [00:00:13.818,481] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_TRANSPORT_CONNECTED --> MQTT_STATE_CONNECTING
    00> [00:00:13.818,511] <dbg> mqtt_helper: client_connect: Using send socket timeout of 60 seconds
    00> [00:00:13.818,511] <dbg> mqtt_helper: mqtt_helper_connect: MQTT connection request sent
    00> [00:00:13.822,601] <dbg> mqtt_helper: mqtt_helper_poll_loop: Took connection_poll_sem
    00> [00:00:13.822,967] <dbg> mqtt_helper: mqtt_helper_poll_loop: Starting to poll on socket, fd: 9
    00> [00:00:13.822,967] <dbg> mqtt_helper: mqtt_helper_poll_loop: Polling on socket fd: 9
    00> [00:00:14.139,373] <dbg> mqtt_helper: mqtt_evt_handler: MQTT mqtt_client connected
    00> [00:00:14.139,434] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_CONNECTING --> MQTT_STATE_CONNECTED
    00> [00:00:14.139,465] <inf> transport: Connected to MQTT broker
    00> [00:00:14.139,495] <inf> transport: Hostname: test.mosquitto.org
    00> [00:00:14.139,526] <inf> transport: Client ID: F4CE36001FE8
    00> [00:00:14.139,526] <inf> transport: Port: 1883
    00> [00:00:14.139,556] <inf> transport: TLS: No
    00> [00:00:14.139,587] <inf> transport: Subscribing to: F4CE36001FE8/my/subscribe/topic
    00> [00:00:14.139,617] <dbg> mqtt_helper: mqtt_helper_subscribe: Subscribing to: F4CE36001FE8/my/subscribe/topic
    00> [00:00:14.148,651] <dbg> mqtt_helper: mqtt_helper_poll_loop: Polling on socket fd: 9
    00> [00:00:15.461,242] <dbg> mqtt_helper: mqtt_evt_handler: MQTT_EVT_SUBACK: id = 2469 result = 0
    00> [00:00:15.461,456] <inf> transport: Subscribed to topic F4CE36001FE8/my/subscribe/topic
    00> [00:00:15.461,486] <dbg> mqtt_helper: mqtt_helper_poll_loop: Polling on socket fd: 9
    00> [00:01:00.761,566] <dbg> mqtt_helper: mqtt_helper_publish: Publishing to topic: F4CE36001FE8/my/publish/topic
    00> [00:01:00.762,664] <inf> transport: Published message: "Hello MQTT! Current uptime is: 60761" on topic: "F4CE36001FE8/my/publish/topic"
    00> [00:01:03.388,061] <dbg> mqtt_helper: mqtt_evt_handler: MQTT_EVT_PUBACK: id = 60761 result = 0
    00> [00:01:03.388,092] <dbg> mqtt_helper: mqtt_helper_poll_loop: Polling on socket fd: 9

    Regards,

    Allen

Reply
  • Hi, 

    I've changed my MQTT broker to broker.hivemq.com and include CONFIG_WPA_SUPP_LOG_LEVEL_DBG=y, but it's still the same output.

    -

    Custom Board

    with set_mac_address function.

    00> [00:00:00.339,782] <inf> wifi_nrf: nrf_wifi_fmac_otp_mac_addr_get: MAC addr not programmed in OTP
    00> 
    00> [00:00:00.340,240] <err> wifi_nrf: nrf_wifi_if_start_zep: Invalid MAC address: 00:00:00:00:00:00
    00> 
    00> [00:00:00.346,374] <inf> fs_nvs: 6 Sectors of 4096 bytes
    00> [00:00:00.346,405] <inf> fs_nvs: alloc wra: 0, fe8
    00> [00:00:00.346,405] <inf> fs_nvs: data wra: 0, 0
    00> *** Booting nRF Connect SDK v2.5.2 ***
    00> <Inf> Setting MAC address
    00> [00:00:00.349,273] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_UNINIT --> MQTT_STATE_DISCONNECTED
    00> [00:00:00.349,517] <dbg> mqtt_helper: mqtt_helper_poll_loop: Waiting for connection_poll_sem
    00> wake up interface err: 0
    00> [00:00:00.482,391] <err> wifi_nrf: nrf_wifi_wpa_supp_event_get_wiphy: Invalid parameters
    00> 
    00> [00:00:10.473,236] <err> wpa_supp: 'INTERFACE_ADD wlan0  zephyr  zephyr  zephyr        ' command timed out.
    00> 
    00> [00:00:10.473,327] <err> wpa_supp: Failed to add interface: wlan0
    00> [00:00:10.473,388] <inf> network: Bringing network interface up and connecting to the network

    without set_mac_address function.

    [00:00:00.341,430] <inf> wifi_nrf: nrf_wifi_fmac_otp_mac_addr_get: MAC addr not programmed in OTP
    
    [00:00:00.341,888] <err> wifi_nrf: nrf_wifi_if_start_zep: Invalid MAC address: 00:00:00:00:00:00
    
    [00:00:00.347,930] <inf> fs_nvs: 6 Sectors of 4096 bytes
    [00:00:00.347,961] <inf> fs_nvs: alloc wra: 0, fe8
    [00:00:00.347,961] <inf> fs_nvs: data wra: 0, 0
    *** Booting nRF Connect SDK v2.5.2 ***
    [00:00:00.350,494] <inf> network: Bringing network interface up and connecting to the network
    [00:00:00.350,616] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_UNINIT --> MQTT_STATE_DISCONNECTED
    [00:00:00.350,860] <dbg> mqtt_helper: mqtt_helper_poll_loop: Waiting for connection_poll_sem

    -

    -

    I've tried the nrf7002DK, MQTT connected and transported successfully on original MQTT broker "test.mosquitto.org" without  set_mac_address function ,and it failed when adding set_mac_address function.

    -

    NRF7002DK

    with set_mac_address function.

    00> [00:00:00.470,825] <inf> fs_nvs: 6 Sectors of 4096 bytes
    00> [00:00:00.470,855] <inf> fs_nvs: alloc wra: 0, fe8
    00> [00:00:00.470,886] <inf> fs_nvs: data wra: 0, 0
    00> *** Booting nRF Connect SDK v2.5.2 ***
    00> <Inf> Setting MAC address
    00> wake up interface err: -120
    00> <Err> Couldn't wake up interface
    00> [00:00:00.473,358] <inf> network: Bringing network interface up and connecting to the network
    00> [00:00:00.473,449] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_UNINIT --> MQTT_STATE_DISCONNECTED
    00> [00:00:00.475,646] <dbg> mqtt_helper: mqtt_helper_poll_loop: Waiting for connection_poll_sem
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> [00:00:02.407,104] <inf> wifi_mgmt_ext: Connection requested
    00> OK
    00> [00:00:33.420,623] <err> wpa_supp: Connection timed out, timeout: 30 seconds

    without set_mac_address function.

    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> OK
    00> [00:00:00.758,331] <inf> fs_nvs: 6 Sectors of 4096 bytes
    00> [00:00:00.758,361] <inf> fs_nvs: alloc wra: 0, fe8
    00> [00:00:00.758,361] <inf> fs_nvs: data wra: 0, 0
    00> *** Booting nRF Connect SDK v2.5.2 ***
    00> [00:00:00.761,016] <inf> network: Bringing network interface up and connecting to the network
    00> [00:00:00.761,138] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_UNINIT --> MQTT_STATE_DISCONNECTED
    00> [00:00:00.763,427] <dbg> mqtt_helper: mqtt_helper_poll_loop: Waiting for connection_poll_sem
    00> [00:00:02.697,357] <inf> wifi_mgmt_ext: Connection requested
    00> [00:00:07.293,762] <inf> network: Network connectivity established
    00> [00:00:12.295,166] <dbg> mqtt_helper: broker_init: Resolving IP address for test.mosquitto.org
    00> [00:00:13.434,295] <dbg> mqtt_helper: broker_init: IPv4 Address found 91.121.93.94 (AF_INET)
    00> [00:00:13.434,356] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_DISCONNECTED --> MQTT_STATE_TRANSPORT_CONNECTING
    00> [00:00:13.818,420] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_TRANSPORT_CONNECTING --> MQTT_STATE_TRANSPORT_CONNECTED
    00> [00:00:13.818,481] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_TRANSPORT_CONNECTED --> MQTT_STATE_CONNECTING
    00> [00:00:13.818,511] <dbg> mqtt_helper: client_connect: Using send socket timeout of 60 seconds
    00> [00:00:13.818,511] <dbg> mqtt_helper: mqtt_helper_connect: MQTT connection request sent
    00> [00:00:13.822,601] <dbg> mqtt_helper: mqtt_helper_poll_loop: Took connection_poll_sem
    00> [00:00:13.822,967] <dbg> mqtt_helper: mqtt_helper_poll_loop: Starting to poll on socket, fd: 9
    00> [00:00:13.822,967] <dbg> mqtt_helper: mqtt_helper_poll_loop: Polling on socket fd: 9
    00> [00:00:14.139,373] <dbg> mqtt_helper: mqtt_evt_handler: MQTT mqtt_client connected
    00> [00:00:14.139,434] <dbg> mqtt_helper: mqtt_state_set: State transition: MQTT_STATE_CONNECTING --> MQTT_STATE_CONNECTED
    00> [00:00:14.139,465] <inf> transport: Connected to MQTT broker
    00> [00:00:14.139,495] <inf> transport: Hostname: test.mosquitto.org
    00> [00:00:14.139,526] <inf> transport: Client ID: F4CE36001FE8
    00> [00:00:14.139,526] <inf> transport: Port: 1883
    00> [00:00:14.139,556] <inf> transport: TLS: No
    00> [00:00:14.139,587] <inf> transport: Subscribing to: F4CE36001FE8/my/subscribe/topic
    00> [00:00:14.139,617] <dbg> mqtt_helper: mqtt_helper_subscribe: Subscribing to: F4CE36001FE8/my/subscribe/topic
    00> [00:00:14.148,651] <dbg> mqtt_helper: mqtt_helper_poll_loop: Polling on socket fd: 9
    00> [00:00:15.461,242] <dbg> mqtt_helper: mqtt_evt_handler: MQTT_EVT_SUBACK: id = 2469 result = 0
    00> [00:00:15.461,456] <inf> transport: Subscribed to topic F4CE36001FE8/my/subscribe/topic
    00> [00:00:15.461,486] <dbg> mqtt_helper: mqtt_helper_poll_loop: Polling on socket fd: 9
    00> [00:01:00.761,566] <dbg> mqtt_helper: mqtt_helper_publish: Publishing to topic: F4CE36001FE8/my/publish/topic
    00> [00:01:00.762,664] <inf> transport: Published message: "Hello MQTT! Current uptime is: 60761" on topic: "F4CE36001FE8/my/publish/topic"
    00> [00:01:03.388,061] <dbg> mqtt_helper: mqtt_evt_handler: MQTT_EVT_PUBACK: id = 60761 result = 0
    00> [00:01:03.388,092] <dbg> mqtt_helper: mqtt_helper_poll_loop: Polling on socket fd: 9

    Regards,

    Allen

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