Tired of marauding wildlife munching on his mums, Bob Forman designed a simple motion detector device that automatically triggers a sprinkler system when unwelcome visitors stray over his property line. Not only does the dog across the street get an occasional dousing, but also Forman's lawn and garden stay well-watered. The device works effectively on small children and door-to-door salesmen too!
AUTOMATIC VARMINT REPELLER PARTS
Allied Part #
16-24V door bell transformer
Outdoor electrical cord
5.5- inch outdoor electrical box
Additional parts required: Wood base, galvanized pipe flange, PVC pipe, solenoid valve, motion detector, plastic impulse sprinkler, hose adapter. For complete parts list and build instructions, go to www.designnews.com and click on Gadget Freak.
At the Design News webinar on June 27, learn all about aluminum extrusion: designing the right shape so it costs the least, is simplest to manufacture, and best fits the application's structural requirements.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This radio show will show what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.