Hackathon Project: VR Headset Sees Through Walls

At Treehacks 2025, a team built a VR headset capable of "seeing" through walls using only $6 ESP32 microcontrollers and an NVIDIA Jetson Nano. They leveraged WiFi channel state information (CSI) data to train a convolutional neural network (CNN) for human detection behind walls. Despite challenges in data acquisition, real-time processing, and model optimization, they submitted their project two minutes before the deadline and caught the attention of a leading AI lab, securing future collaboration. This technology holds potential for search and rescue applications.