5.0
  • 5 star 22 ( 73% )
  • 4 star 8 ( 27% )
  • 3 star 0 ( 0% )
  • 2 star 0 ( 0% )
  • 1 star 0 ( 0% )
Customer’s impression:
Very good Easy Accurate sensor !!!!!
Create Review

Share your thoughts and
Get DX Points!

  • Nice and cheap PIR Module

    posted by Hexacat on 10/13/2012
    9

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

    Pros:

    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.

    Cons:

    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.

    OtherThoughts:

    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"

    Bottomline:

    Can be used with a camera to build a camera-trap!

    • Solder side

Post comment

WHY CHOOSE DX.COM?

Get great weekly deals and offers like: Collections