I am using microchip ATECC608A-TNGTLS with Mikroe Secure UDFN click. As far as i know its a click platform to authorize the device to google iot core. But i am not able to find any tutorial or example about how can i connect my Banana PI M4 to Google iot core using this platform?
I saw this example https://github.com/MicrochipTech/gcp-iot-core-examples/tree/master/boards/raspi but i am quite confused about how can i get the keys out of that secure chip. Is there anyone who already did the same setup and can help me? thanks a lot!
So i found the answer.
First you need to install the python package cryptoauthtools. There are alot of examples are present like creating a JWT from ATECC608A.
https://github.com/MicrochipTech/cryptoauthtools/tree/master/python/examples
Intitalise the lib, create a JWT for the login and then there is a pubsub example present on google cloud webpage to publish data on the gcp..
https://cloud.google.com/pubsub/docs/tutorials