Electronic Mosquito Repellent

Here I tell you about a Jugaad to keep the mosquitoes away that is Electronic Mosquito repellent circuit.

This circuit produces a high frequency of ultrasonic sound that allow spreading mosquitoes within a wide range of radius.

Requirements-

• 555 Timer IC
• Resistors and Capacitors
• LED
• 9 volt DC power supply
• Good high frequency speaker(piezo speaker)

 Schematic Circuit Diagram-

 

The actual Oscillation frequency of electronic repellent circuit is around 45 KHz, so we need to use high frequency speaker.Here R2 can be replaced by a potentiometer(Variable resistor) to change the Oscillation frequency.

Note:- High frequency is less audible by human nature.So don't worry if you don't hear sound.