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The advent of Arduino microcontrollers has revolutionized the world of electronics and automation. With their user-friendly interface and vast array of modules and sensors, Arduino boards have become the go-to choice for hobbyists and professionals alike. In this article, we will explore the significance of a 5V water pump module, the importance of using transistors, and how to effectively connect the two to create an efficient water control system.

PurgeCSS is a tool to remove unused CSS. When you are building a website, you might decide to use a CSS framework like TailwindCSS, Bootstrap, MaterializeCSS, Foundation, etc... You will only use a small set of the framework but a lot of unused CSS styles will be included.

PurgeCSS analyzes your content and your CSS files. Then it matches selectors used in your files with the ones in your content files. It removes unused selectors from your CSS, resulting in smaller CSS files. PurgeCSS comes with a JavaScript API, a CLI and plugins for popular build tools.

In Bash and other Linux shells, when a program is executed, it uses three standard I/O streams. Each stream is represented by a numeric file descriptor: