Machine-to-machine (M2M) communication in the context of IoT refers to direct exchanges of data between devices without human intervention. This technology enables devices, such as smart sensors, to communicate and make decisions autonomously. M2M communication enhances efficiency by facilitating real-time monitoring and automation of processes across various industries, including manufacturing, agriculture, and healthcare. By allowing devices to work together seamlessly, M2M contributes to the broader IoT ecosystem, creating smarter environments and enhancing operational efficiency and decision-making accuracy.