presence sensor
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This DIY Open-Source mmWave Presence Sensor Features ESP32-C6 With Precision 2D Spatial Tracking Traditional infrared presence sensors are cheap, but unreliable for smart homes, often turning off lights if you remain still for even a few seconds. Millimeter-wave (mmWave) radar modules offer a far superior alternative by detecting micro-movements like breathing and even tracking a person's exact 2D position in a room. However, commercial mmWave presence sensors can cost anywhere from $40… |
