Learn how to remove a retained message from AWS IoT Core using the AWS IoT MQTT Test Client (Console) and also programmatically using nodejs.
In April 2022, AWS made a powerful addition to Lambda: Function URLs. Learn all about them in this post, from enablement to configuration and best practices.
Have non-English characters (Hindi, Japanese, etc.) in your HTTP request body in Nodejs? Chances are that your requests are failing. Here’s the fix.
Want to access critical resources from multiple threads in ESP32. Learn how to use Mutexes in IDF for achieving just that.
Ever wondered how your credit card number is securely transmitted over the internet? Ever wondered how HTTPS works on a high level? Read on to find out.
This article can act as a reference whenever you need to perform time operations on ESP32 in the Arduino IDE (bookmark it!).
Observing your code running out of memory after a few iterations? Memory leaks caused by JSON objects might be the culprits. Learn how to fix them.
Getting a 302 status code with the “Object moved to here” response when making an API call? Perhaps you are missing a cookie. Learn how to fix that.
What is MQTT, and why is it so popular in IoT applications? What are the terms surrounding MQTT that you should be aware of? Read this post to find out.
Want your dynamic variables to retain their values throughout the lifecycle of an app, across child processes, in nodejs express? Learn how.