HOME Schematics Hobby Corner Dave's Circuits Electronic Resources Book Corner Contact Info

What the World Needs Now  [Issue 2, October 2009]                                                                  Previous Issues     


I have an area on my roof where a large flock of pigeons like to roost.  Their nesting materials and droppings really make a mess, which often clogs my roof gutters.  Perhaps one way to scare them away is with a device mounted on the roof near their favorite roosting spot.  The device could contain an infrared motion detector.  When it detected their motion, a spring loaded cover would suddenly pop up, like a jack in the box. The thing could be equipped with a small solar panel, which could charge up either a super capacitor or a long life battery.  After each pop up activation, a motor would pull the cover down into the body of the box, making the system ready for another cycle.  I think the device could be camouflaged to look like a standard roof vent. 

Perhaps instead of using the bird motion to activate the device, it could just go through a cycle every 10 minutes or so.  It could also contain a daylight sensor so at night, the number of activations would be reduced to perhaps once every 30 or 60 minutes.  This should extend battery life.

October 2009      Issue 2

Page 1 Back
Good Idea
gone Badly
New Products Rants &
What the World
needs Now
Wily Widget


Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches

 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |   
Privacy Policy

Discovercircuits.com endeavors to credit original designers.   Please alert us by eMail so we can
delete links to material that have been copied without your permission
.   Thank you.

Copyright of all original material on this website is the property
of David A. Johnson, P.E. (Dave Johnson & Associates ) unless otherwise noted.  

Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.
All material is provided "as is" without guarantees or warranty of any kind, either expressed or implied.