Google IOT MQTT Sample¶
Overview¶
This sample application demonstrates a “full stack” application. This currently is able to
Acquire a DHCPv4 lease.
Connect to an SNTP server and acquire current time
Establish a TLS connection with the Google IOT Cloud servers
Publish data to the Google IOT Cloud
Send/Receive keep alive / pings from cloud server
The source code for this sample application can be found at: samples/net/google_iot_mqtt.
Requirements¶
Entropy source
Google IOT Cloud account
Google IOT Cloud credentials and required information
Network connectivity
Building and Running¶
This application has been built and tested on the NXP FRDMK64F. RSA or ECDSA certs/keys are required to authenticate to the Google IOT Cloud. The application includes a key creation script.
Run the create_keys.py script in the
samples/net/google_iot_mqtt/src/private_info/ directory.
Users will also be required to configure the following Kconfig options based on their Google Cloud IOT project:
CLOUD_CLIENT_ID - created from <telemetry>/<region>/registries/<registry name>/devices/<device name>
CLOUD_AUDIENCE - created from telemetry without projects on front
CLOUD_SUBSCRIBE_CONFIG - created from /devices/<device name>/config
CLOUD_PUBLISH_TOPIC - created from /devices/<device name>/state