Configure the firmware

To configure the firmware, complete the following mandatory steps:

Run the following command to print the MQTT endpoint to which your devices will connect:
```
node cli info -o mqttEndpoint
```
Use this MQTT endpoint value as the value for the CONFIG_AWS_IOT_BROKER_HOST_NAME configuration variable.
Use 42 as the value for CONFIG_AWS_IOT_SEC_TAG.

Comment in the remaining AWS settings in the prj.conf file:

CONFIG_AWS_IOT=y
CONFIG_AWS_IOT_APP_SUBSCRIPTION_LIST_COUNT=1
CONFIG_AWS_IOT_AUTO_DEVICE_SHADOW_REQUEST=y
CONFIG_AWS_IOT_CLIENT_ID_APP=y
CONFIG_AWS_IOT_MQTT_PAYLOAD_BUFFER_LEN=2048
CONFIG_AWS_IOT_MQTT_RX_TX_BUFFER_LEN=2048
CONFIG_AWS_IOT_TOPIC_GET_REJECTED_SUBSCRIBE=y
CONFIG_AWS_IOT_TOPIC_UPDATE_DELTA_SUBSCRIBE=y
CONFIG_AWS_FOTA=y

Comment in the AWS logging settings in the overlay-debug.conf file:

CONFIG_AWS_FOTA_LOG_LEVEL_DBG=y
CONFIG_AWS_IOT_LOG_LEVEL_DBG=y
CONFIG_AWS_JOBS_LOG_LEVEL_DBG=y

Comment out the nRF Connect for Cloud settings in the prj.conf file:

# CONFIG_AGPS=y
# CONFIG_AGPS_SRC_NRF_CLOUD=y
# CONFIG_NRF_CLOUD=y
# CONFIG_NRF_CLOUD_AGPS=y
# CONFIG_NRF_CLOUD_CONNECTION_POLL_THREAD=y
# CONFIG_NRF_CLOUD_PGPS=n
# CONFIG_NRF_CLOUD_SEND_TIMEOUT=y
# CONFIG_GPS_MODULE_NMEA=y

Comment out the nRF Connect for Cloud logging settings in the overlay-debug.conf file:

# CONFIG_NRF_CLOUD_FOTA_LOG_LEVEL_DBG=y
# CONFIG_NRF_CLOUD_GPS_LOG_LEVEL_DBG=y
# CONFIG_NRF_CLOUD_LOG_LEVEL_DBG=y

After completing the configuration, compile the firmware either using your own development environment or using Docker and then create the device credentials.

Note

See the documentation on nRF9160: Asset Tracker v2 application (1.6.0) for all available configuration options.