HC-SR501 PIR sensor Motion Detector Sensor Passive Infrared Module

PIR sensor stands for Passive Infrared sensor, works as a motion detector sensor. The sensor measures infrared radiations emitting from an object in its view within approximately 10m (actual value is from 5m to 12m). the sensor is made of the pyroelectric sensor, responsible to detect levels of infrared radiation.

Specification

• Voltage supply: 5V to 20V
• Quiescent current: less than 50µA
• Current consumption: 65mA
• High-level output: 3.3V
• Low-level output: 0v
• Trigger method
  • L – disable repeat trigger
  • H – enable repeat trigger
• Sensing range: less than 120 Degree within 7 meters

Application

• Home security system like an automatic alarm
• Automatic light
• Body induction lamps and toys

Instructions to use

• The sensor is not recommended to use in
  • Rapid change environment
  • Direct sunlight
  • IR blocking material
  • Strong shock and vibration
  • Direct wind
• During initialization, it takes 0 to 3m to start