: The onboard potentiometer allows users to increase or decrease the detection range. High sensitivity can detect living beings up to 9 meters away.
For more detailed integration steps, you can explore guides from Instructables or technical documentation from snippet to test this sensor? Raspberry Pi Projects hw-416-b pir sensor datasheet
Avoid placing the sensor near heaters, air conditioners, or direct sunlight, as rapid temperature changes can cause false alarms. : The onboard potentiometer allows users to increase
: Do not remove or damage the white plastic dome, as it is critical for the sensor's wide-angle detection. or direct sunlight
, offering tight component tolerances for stable performance in varying temperatures. Specification DC 4.5V – 20V Static Current Output Level 3.3V (High) / 0V (Low) Detection Range Adjustable from 3m to 7m Detection Angle < 120° cone angle Delay Time Adjustable (approx. 0.3s to 5 minutes) Operating Temp -20°C to +80°C Pinout & Wiring HC-SR501 PIR MOTION DETECTOR