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    9 x Electronic Repellents Circuits and Projects

    Browse through a total of 9 Electronic repellent circuits and projects.

    Automatic Pest Repellent Automatic Pest Repellent is a non-chemical, clean, harmless and effective solution to unwanted pests. The circuit described here is nothing but a passive infrared (PIR) motion sensor activated water spray to deter animals from your lawn and/or garden. Needless to say, this system is ideal for repelling deer, dogs, raccoons,...
    Electronic Mosquito Repellent Circuit This electronic mosquito repellent circuit is easy to build but is kind of hard to adjust on the exact sound frequency which will reppel the mosquitoes. With frequencies between 2 KHz and 2.5 KHz which mimic male mosquitoes buzz, it seems you can get the best effect. Mosquitoes Repellent Circuit Diagram But sometimes you may...
    Solar Powered Animal Scarer Here is a solar powered Flasher to scare away the nocturnal animals like bats and cats from the farm yard or premises of the house. The brilliant multicolored flashes confuse these animals and they avoid the hostile situation. It is fully automatic, turns on in the evening and turns off in the morning. The circuit has an LDR...
    Electronic Dog Repellent Circuit The electronic dog repeller circuit produces a discomforting but not harmful, high frequency sound, audible to dogs but not to humans. Help stop the approach of unwanted dogs at up to 15 feet. It uses 555 circuit at is easy to build, this is a dog chaser schematic that you can do it yourself. From R3 adjust the resonance...
    Electronic Mouse Repellent Circuit This electronic mouse repellent circuit was designed because most people agree that rats and mice are not welcome in our houses, meantime some of us don’t want to hurt this tiny and “beautiful” creatures. Using a CMOS 4047 IC that is connected in such a way that it can function as an relax oscillator to...
    Electronic Pest Repellent Circuit There are many ultrasonic pest repellent devices available on the market but a major drawback is that their power output is low and their effectiveness suffers. This electronic pest repellent generates powerful ultrasonic signals to repel pests. In addition to the ultrasonic frequency oscillator built with the CD4047 IC,...
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