Send sound waves as mosquito repellents by generating a small sound frequencies on transistor based bistable multivibrator. Which is economical and safe. In the use of chemicals.
Mosquitoes, in addition to the already annoyed. Also carriers of pathogens that cause harm to human beings. Which normally we get rid of mosquitoes with chemicals. It has worked great, but if you use it regularly, it affects our body naturally.
Which method is safe?
This project used sound mosquito repellents, is the safest way, for health. Because,We create high frequency sound waves that mosquitoes do not like. According to the theory of the scientists found that Mosquitoes do not high frequency sound waves. And to fly away because it interferes with its flight.
How this circuit works
In Figure 1 The circuit uses two transistors (Q1,Q2) connects to the transistor based bistable multivibrator oscillator generate a sound frequency. Which, a sound of this circuit is determined by both resistors(R2, R3) and both capacitors(C1, C2) connected with together . The sound frequency that out of a collector pin of Q2-transistor to ceramic piezo sounder to emit a high sound wave go out , on radius of under 5 square meter.
If is outdoor or mosquito disturb too much. so, put this project far from us around 1 meter.
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