PIR Motion Sensor HC-SR501 Motion Detector Pyroelectric Infrared Module
- Product SKU: KG001
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Specification
Description
PIR Motion Sensor HC-SR501
The HC-SR501 is a compact and efficient PIR motion sensor module designed for detecting human motion. It works by sensing infrared radiation changes, typically from moving bodies, within its detection range. The module is equipped with adjustable sensitivity and time delay settings, allowing users to fine-tune its performance for various applications. Operating at 5V DC, it is commonly used in security systems, automatic lighting, and home automation projects. The sensor offers a detection range of up to 7 meters, depending on the environment, and is compatible with platforms like Arduino and Raspberry Pi. Its low power consumption makes it ideal for battery-operated devices.Technical Details
- Item Type: Sensor
- Model Type: Motion Sensor Module
- Model No.: HC SR501
- Operating Voltage (V): 4.5 to 20
- Avg. Current Used (mA): 0.06
- Distance Measure (cm): 300 ~ 700
- Output Type: (High/ Low-level Signal) 3.3V TTL output
- Dimensions (L x W x H) mm: 32 x 24 x 18
- Weight (g): 10
- Operating Temperature (°C): -20 to 80
- Detection Angle: <140°
- Delay Time: 5 to 200s (Can be Adjusted, Default 5s +/- 3%)
Pin Definitions
- GND: Connects to Ground or Vss
- V+: Connects to Vdd (4.5V to 20 VDC)
- OUT: Output Connects to an I/O pin set to INPUT mode (or transistor/MOSFET)
Features
- Infrared Sensor with Control Circuit Board
- The Sensitivity and Holding Time Can be Adjusted
- Sensitive Setting: Turn to the Right, Distance Increases (About 7M); Turn to the Left, Distance Reduce (About 3M)
- Time Setting: Turn to Right, Time Increases (About 200S); Turn to Left, Time Reduce (About 5S)
Calibration
The PIR Sensor requires a ‘warm-up’ time in order to function properly. This is due to the settling time involved in ‘learning’ its environment. This could be anywhere from 10-60 seconds. During this time there should be as little motion as possible in the sensors field of view.Sensitivity
The PIR Sensor has a range of approximately 20 feet. This can vary with environmental conditions. The sensor is designed to adjust to slowly changing conditions that would happen normally as the day progresses and the environmental conditions change, but responds by making its output high when sudden changes occur, such as when there is motionJumper Setting
- H: Retrigger Mode: Output remains HIGH when sensor is retriggered repeatedly. Output is LOW when idle (not triggered).
- L: Normal Mode: Output goes HIGH then LOW when triggered. Continuous motion results in repeated HIGH/LOW pulses. Output is LOW when idle. PIR Motion Detection Sensor
Integration with Arduino of Passive Infrared Sensor
Sample Code
Integration with Raspberry Pi
Sample Code
Physical Attributes of Passive Infrared Sensor
- L x W x H (mm): 32 x 24 x 18
- Weight (gm): 12
Package Includes
- 1 x PIR Motion Sensor Detector Module HC SR501
Customer Reviews
I have used these in a hallway in my house that is pitch black at night so that when I enter the hallway a few LED's light up. Works great and well packaged!
PIR Sensor Module HC-SR501
Thank you for your feedback! We're delighted that you're pleased with our product. If you ever need assistance or have any questions, feel free to reach out. We appreciate your support and hope to continue exceeding your expectations.
These sensors work great. Detect motion perfectly. Good size, no complaints.
Worked for me
Project on hold but good product
I haven't checked accuracy yet or motion detection in a larger room, but seems to work well so far.
Works well, but the pin configuration is a different that most standard docs for similar products online, so it took a bit of doing to get it to work. Seems to work well once the wiring is correct
Even on the lowest sensitivity, they react to heat, light bulbs, and air movement. Unreliable. There is also an annoying four second delay before motion can be detected again.
Excellent product and very good seller exact product information
Worked exactly as discribed, used to trigger halloween jump scare devices
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