The discussed circuits are designed to discourage dogs from barking in the selected zone by the generation of a synchronized ultrasonic sound waves in response to a few initial barking of a particular dog. The circuits explained below when correctly optimized will produce a high pitched ultra sonic sound each time it senses a dog […]
Pets and Pests
2 Mosquito Swatter Bat Circuit Diagrams Explained
Mosquitoes are a big menace to humankind and these are present in every corner of the world. A cool way of avenging yourself could by eliminating these “devils” through electrocution. A mosquito swatter bat is designed just for this. I have explained how to build its electronic circuitry. The idea was requested by Mr. kathiravan d. […]
Build this Mosquito Bat without Battery
This simple homemade mosquito swatter bat neither requires a circuit nor a battery for the operation. The entire design works using a single high voltage capacitor and through quick charging from mains AC socket. (Designed by me) Introduction In a few of my earlier posts I have discussed how to make mosquito zappers using the […]
How to Repair Mosquito Swatter Bats
Repairing a mosquito bat is a process in which a malfunctioning mosquito bat is checked for faults using meters and restored to its earlier working condition. This post provides some general tips regarding how to repair a mosquito swatter bat or racket, through quick steps. Mosquito rackets today have become an indispensable tool in every […]
Ultrasonic Pest Repellent Circuit
The explained Ultrasonic Pest repeller is a device that generates ultrasound or a very high frequency noise in the range of over 20 kHz which becomes useful for repelling or scaring away animals like stray dogs, cats, mice bats, etc. This becomes possible since these animals are able to easily detect the frequencies at this […]
Simple Electronic Dog Whistle Circuit Explained
An electronic dog whistle is a device that generates ultrasonic sound waves and is used for training dogs and for controlling excessive barking habit. Because dogs and domestic cats can hear ultrasonic frequencies, humans cannot, this dog whistle device is employed to train these animals. It is also sometimes known as a silent whistle or […]