IEEE 802.15 is a working group within the Institute of Electrical and Electronics Engineers (IEEE) that focuses on developing standards for wireless personal area networks (WPANs). These standards enable short-range communication between devices, such as smartphones, wearables, and home automation systems, facilitating seamless connectivity in personal and professional environments. The most notable standard under IEEE 802.15 is Bluetooth, which allows devices to communicate wirelessly over short distances. Other standards include IEEE 802.15.4, which is used in low-rate wireless personal area networks and serves as the foundation for protocols like Zigbee and Thread, commonly used in Internet of Things (IoT) applications.