Solutions
Proven ESP32 builds with parts lists, step-by-step installs and ready configs.
〰️ Intermediate
WiFi CSI Presence Node
Detect people through walls using WiFi physics — no camera, no privacy worries.
~$15 45 min ESP32-S3 (T-Dongle-S3 or DevKitC-1)
〰️ Advanced
Multi-Modal Sensor Hub
CSI + microphone + IMU + ultrasonic + round display — a lab bench in one knob.
~$45 90 min Elecrow CrowPanel 1.28" ESP32-S3 Rotary