mosquito circuits and projects

This electronic mosquitoes 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.

The circuit behaves like a true mosquito: once the light dims, the mosquito starts an annoying buzz. When its light again it becomes mute, so that, as in the case of genuine mosquito is very difficult to spot.