Insects and mice repellent circuit using IC556
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.
NE556
NE556 Dual timer Datasheet pinout and example circuits
Use NE556 better. Why? Imagine you use often the 555 timer circuit. It is so great, right? Of course, we should improve our circuit. Small and save money. NE556 is a dual timer of 555. It is two in one. So, save space and cheaper. In this article, we will learn how does use it, … Read more
Simple metal detector circuit
This is a simple metal detector circuit, Can find various metal and adjustable sensitivity Easy to use near metal. use IC-NE556-Monostable multivibrator