Why Sensor Data Needs Filtering
Many devices do collect data. The problem is that raw data is often not ready to become a device decision.
Temperature readings drift slowly. Scales jump by a few grams. Water leak probes may toggle because of droplets or contamination. Current sensing picks up switching noise. Ultrasonic ranging occasionally returns a strange distance. If the firmware compares every raw sample directly against a threshold, the device will false-trigger, miss events, or bounce between states.
Read More