This is a mouse and insects repellent circuit, use high frequency out of the piezo speaker and IC-556 is base as oscillator between 22kHz and 56kHz
This projects is safer and more convenient than using chemicals to turn switch on only and use Low power consumption (only 0.5 watt) .
How This Circuit works
The working of this circuit is easy because IC1 is IC556 that has working principle resemble with IC555 there. So, the IC-556 have dual oscillator generators within an one IC, but IC555 has single oscillator only.
This projects is safer and more convenient than using chemicals to turn switch on only and use Low power consumption (only 0.5 watt) .
How This Circuit works
The working of this circuit is easy because IC1 is IC556 that has working principle resemble with IC555 there. So, the IC-556 have dual oscillator generators within an one IC, but IC555 has single oscillator only.
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