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.
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September 11, 2019
Small electric organ circuit using NE556
This is a Mini Organ circuit using N556. Now maybe the era of microcontrollers and computers. But having a basic level of electronic capabilities is still necessary. I like to…
March 1, 2017
Simple train whistle circuit using NE556
This is a simple train whistle circuit. We have many ways to generate a two-tone sound circuit. I love to collect a basic or small circuit. This circuit may be…
January 22, 2017
capacitors virtual which caused from parallel of metal
Simple metal detector Project
This is a simple metal detector circuit, Can find various metal and adjustable sensitivity Easy to use near metal. use IC-NE556-Monostable multivibrator
October 31, 2013