The author of the blog post discusses their experience with IoT devices, specifically with an ESP32D devkit connected to an AWS Lambda function. They encountered frustration when trying to understand how data was flowing into the application due to limited visibility into device operations. To alleviate this issue, they used observability and tracing tools, such as Lumigo's LiveTail, to monitor the flow of data from the IoT device to the Lambda function. The author also shares their experience with choosing an IoT board, setting up certificate authentication, and routing messages using AWS IOT SQL. They demonstrate two approaches to handling click logic on the cloud side: using SQS queues as a trigger for Lambda functions and moving the logic back to the Arduino sketch itself. The author concludes by highlighting the importance of monitoring AWS services with tools like Lumigo.