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  1. OrbitalD

    Alter Existing PIR Circuit

    Hi Logbook, Original poster here: When you say that that "they are not using the selected grade of opamp" exactly what do you mean? I'm kind of new to Op-Amps. Thanks, David
  2. OrbitalD

    Alter Existing PIR Circuit

    These boards are available at under $1 each and they come with a 1W audio amp as well, which we need. This is a super deal for us if we can make it work and would leave more money for other important aspects of the project. We will start looking around at other options if we are sure these...
  3. OrbitalD

    Alter Existing PIR Circuit

    Hi Scotty and thanks for the advice. I'm familiar with the off-the-shelf offerings and would agree that it would be simpler and cheaper for most applications. However, I working on a non-profit interactive art project that will use between 500-1000 sensors and these boards are available...
  4. OrbitalD

    Alter Existing PIR Circuit

    Hi, I have a board with an existing PIR circuit designed for close operation. This circuit was used as a handwave signal. I wondering how I would alter this circuit to work for whole room motion sensing using the same PIR sensor http://farm1.static.flickr.com/200/467631191_6e01d24adb_b.jpg...

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