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--- pir_motion_sensor_pir_motion_sensor [2022/09/09 14:27] – created sysop
+++ pir_motion_sensor_pir_motion_sensor [2022/09/12 16:20] (current) – sysop
@@ Line 1: / Line 1: @@
 **PIR motion sensor**\\
+{{ ::sen-hc-sr501-1b.png?400|}}
+HC-SR501 auto-senses light for various applications (in house, basement, outdoor, warehouse, garage, etc,) for
+ventilator control, alarm, etc.
+\\
+Output goes high when objects enter the sensing range, and automatically returns to low when object leaves\\
+Trigger mode jumper\\
+L: Non-repeatable / delay mode: sensor goes low after the delay, regardless of the presence of the object.\\
+H: Repeatable: sensor stays high as long as any object is detected during the delay time.\\
+\\
+Specifications\\
+Voltage 	4.8 V – 20 V\\
+Current (idle) 	<50 µA\\
+Logic output 	3.3 V / 0 V\\
+Delay time 	0.3 s – 200 s, custom up to 10 min\\
+Lock time 	2.5 s (default)\\
+Trigger 	repeat : L = disable , H = enable\\
+Sensing range 	<120 °, within 7 m\\
+Temperature 	– 15 ~ +70 °C\\
+Dimension 	32 x 24 mm\\
+\\
+{{ ::18914279.jpg?400|}}\\
+{{ ::hc-sr501_passive_infrared_pir_motion_sensor.pdf | hc-sr501 manual}}\\