Your Wi-Fi isn’t just connecting devices anymore. It can now sense and map human movement through solid walls. This system uses Wi-Fi Channel State Information (CSI), which tracks how wireless signals change as they reflect off the human body. Small movements like walking, standing, or shifting posture subtly alter the signal. Multiple Wi-Fi nodes send and receive data at the same time, while AI models analyze changes in phase, timing, and strength to reconstruct movement without cameras or dire