HC-SR501 Passive Infrared (PIR) Motion Sensor

Series	HC-SR501
Part Number	HC-SR501

Arduino Passive Infrared (PIR) Motion Sensor

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PIR Motion Detector

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HC-SR501 PIR MOTION DETECTOR
c La guage ress Product Discription
feedback HC-SR501 is based on infrared technology, automatic control module, using Germany imported LHI778 probe design, high sensitivity, high
reliability, ultra-low-voltage operating mode, widely used in various auto-sensing electrical equipment, especially for battery-powered automatic
controlled products. Specification: sor free ◦ Voltage: 5V - 20V
◦ Power Consumption: 65mA
◦ TTL output: 3.3V, 0V
◦ Delay time: Adjustable (.3->5min)
◦ Lock time: 0.2 sec
◦ Trigger methods: L - disable repeat trigger, H enable repeat trigger
◦ Sensing range: less than 120 degree, within 7 meters
◦ Temperature: - 15 ~ +70
◦ Dimension: 32*24 mm, distance between screw 28mm, M2, Lens dimension in diameter: 23mm Application:
Automatically sensing light for Floor, bathroom, basement, porch, warehouse, Garage, etc, ventilator, alarm, etc. Features:
◦ Automatic induction: to enter the sensing range of the output is high, the person leaves the sensing range of the automatic delay off high,
output low.
◦ Photosensitive control (optional, not factory-set) can be set photosensitive control, day or light intensity without induction. seller. ◦ Temperature compensation (optional, factory reset): In the summer when the ambient temperature rises to 30 ° C to 32 ° C, the detection
distance is slightly shorter, temperature compensation can be used for performance compensation.
◦ Triggered in two ways: (jumper selectable)
◦ non-repeatable trigger: the sensor output high, the delay time is over, the output is automatically changed from high level to low level;
◦ repeatable trigger: the sensor output high, the delay period, if there is human activity in its sensing range, the output will always remain
high until the people left after the delay will be high level goes low (sensor module detects a time delay period will be automatically
extended every human activity, and the starting point for the delay time to the last event of the time). …

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Detailed Description

This motion sensor module uses the LHI778 Passive Infrared Sensor and the BISS0001 IC to control how motion is detected.

The module features adjustable sensitivity that allows for a motion detection range from 3 meters to 7 meters.

The module also includes time delay adjustments and trigger selection that allow for fine tuning within your application.

HC-SR501 Passive Infrared (PIR) Motion Sensor

HC-SR501

PIR HC-SR501

HC-SR501 Pin Outs and Controls

HC-SR501 Pin Outs Controls

HC-SR501 Area of Detection

The device will detect motion inside a 110 degree cone with a range of 3 to 7 meters.

Important: 3 Seconds Off After Time Delay Completes

The output of this device will go LOW (or Off) for approximately 3 seconds AFTER the time delay completes. In other words, ALL motion detection is blocked during this three second period.

For Example:

Imagine you’re in the single trigger mode (see below) and your time delay is set 5 seconds.
The PIR will detect motion and set it high for 5 seconds.
After five seconds, the PIR will sets its output low for about 3 seconds.
During the three seconds, the PIR will not detect motion.
After three seconds, the PIR will detect motion again and detected motion will once again set the output high and the output will remain on as dictated by the Time Delay adjustment and trigger mode selection.

Other Names:

HCSR501, HC SR501