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  • Overall Rating: 5
  • Price: 5
  • Quality: 4
  • Ease Of Use: 5
  • Usefulness: 5
Nice and cheap PIR Module – IR Infrared Motion Detection Sensor Module (DC 5V~20V) Reviews

posted by Hexacat on 10/13/2012 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

Easy to use motion detector with variable sensitivity and variable output-High time (2 sec ... few minutes). Output High-Level is 3,3 V, an 1k resistor is already on the board so you can connect the base of an Transistor or a LED directly to the output.
The Ti-Time (During this time period, triggering is inhibited) was to long (approx 3 sec) for my application. I changed R12 (1 Meg.) to 100k so the inhibit-Time is now approx 0.5 sec.
Type: HC-SR501 Build around BISS0001 Micro Power PIR Motion Detector IC and LHi778 Pyroelectric Detector. You can find the schematic if you search for "DYP-ME003/Specification.pdf"
Can be used with a camera to build a camera-trap!


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