PIR Sensor HC-SR501 Motion Detector Pyroelectric Infrared Module
- Product SKU: KG001
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Specification
Description
PIR Sensor HC-SR501
The HC-SR501 is a compact and highly efficient pir sensor module designed for detecting human motion. It captures changes in infrared radiation emitted by moving objects within its active range, making it a reliable pir motion sensor for automation tasks. Because the hc sr501 includes adjustable sensitivity and timing controls, users can fine-tune detection performance across a wide range of applications.Technical Details – hc sr501 reference
- 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 – pir motion sensor pins
- 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’ period to function correctly. This compensates for environmental temperature changes and can take 10–60 seconds. During this time, avoid motion in the sensing area.Sensitivity
The pir sensor has a detection range of approximately 20 feet, although this may vary with environmental factors. It responds to sudden infrared changes, while slowly shifting conditions are ignored as part of normal operation.Jumper Setting – pir motion sensor modes
- H: Retrigger Mode: Output remains HIGH when repeatedly triggered. Output is LOW when idle.
- L: Normal Mode: Output goes HIGH then LOW per trigger. Continuous motion causes repeated HIGH/LOW pulses.
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): 8
Package Includes
- 1 x PIR Motion Sensor HC-SR501 Motion Detector Pyroelectric Infrared Module
Customer Reviews
The cutouts for the soldering connectors fit under the jumper not. therefore blurred the board respectively. Sitting wrong on the clip!
Looks like everything.
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
Super!
Fast shipping, cinfirme to the description. I recommend!
The module was delivered in a general parcel. Packed well. Checked briefly on the LED works. There were no problems. I think with this seller can cooperate in further.
GUD!
