CONFIG_EXAMPLE_CONNECT_ETHERNET=y CONFIG_EXAMPLE_CONNECT_WIFI=n CONFIG_ETHERNET_INTERNAL_SUPPORT=y CONFIG_ETHERNET_PHY_GENERIC=y CONFIG_ETHERNET_MDC_GPIO=23 CONFIG_ETHERNET_MDIO_GPIO=18 CONFIG_ETHERNET_PHY_RST_GPIO=5 CONFIG_ETHERNET_PHY_ADDR=1 CONFIG_MQTT_PROTOCOL_5=y CONFIG_EXAMPLE_MQTT_BROKER_URI="mqtts://${EXAMPLE_MQTT_BROKER_SSL}" CONFIG_EXAMPLE_BROKER_CERTIFICATE_OVERRIDE="${EXAMPLE_MQTT_BROKER_CERTIFICATE}"