By 2025, communication protocols such as I2C, SPI, and UART will continue to be a vital part of the tech world. These protocols are used for communication between various electronic devices and serve as the invisible heart that keeps our interconnected embedded systems and peripherals running optimally. In this article, we will dissect the functionalities, advantages, and limitations of these three protocols. We will first explore how each protocol operates, supplemented by explanatory GIFs…