PIR-1000x1000PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don’t wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, “Passive Infrared”, “Pyroelectric”, or “IR motion” sensors.

PIRs are basically made of a Pyroelectric sensor which can detect levels of infrared radiation. Everything emits some low level radiation, and the hotter something is, the more radiation is emitted. The sensor in a motion detector is actually split in two halves. The reason for that is that we are looking to detect motion (change) not average IR levels. The two halves are wired up so that they cancel each other out. If one half sees more or less IR radiation than the other, the output will swing high or low. At their output we will found Level change if difference occurs.

Circuit Specification

  • Supply Voltage – 3V to 5 V DC
  • Drain Current –  <50 uA
  • Output voltage  – TTL Level (0 to 3.3V)
  • Range – 2 to 3 Meter
  • Setting Time –  60 Second


          PIN Information

VCC Supply + 5V
SIG Output Signal (TTL Level)
GND Supply Ground


  • Less setting time
  • Low noise & highly stable
  • TTL level compatible (Directly connection to Microcontroller)
  • High quality PCB material & original component only
  • Each module tested with automatic testing machine


  • Robotics Systems
  • Automotive Domain
  • Security & Surveillance
  • Smart Home System
  • Industrial Control System

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