If you are working in the IoT ecosystem, chances are that you may have heard of mDNS and/or DNS-SD. Want to understand these concepts? Read on!
Learn how to advertise services provided by your ESP32 over mDNS to facilitate discovery by other devices on the local network.
Learn about the Time to Live (TTL) feature of dynamoDB, how to enable it in the console, its salient features and advantages.
Learn how to package the node_modules into a layer on AWS Lambda, so that your application code remains visible on the lambda console.
Learn how to add a new Cognito user to DynamoDB (using lambda as the intermediary) as soon as the user’s sign up is confirmed.
Learn how to delete users from Cognito using lambda functions in two ways: admin_delete_user and delete_user. Also see how the two methods compare.
Learn how to use basic ingest to save on messaging costs, which form a big chunk of the total costs incurred during the interaction of things with AWS IoT Core.
In lab or in field, it is desirable to add multiple WiFi credentials to ESP32 and allow it to connect to the best option. Learn how to do that using WiFiMulti.
Get introduced to the concept of K-fold cross validation, and understand its implementation in scikit learn with an example.