This is the circuit for a clap switch which that allows that control of a device by clapping twice.
This is the Simple circuit of water level alarm which is based on IC 555.Which makes the sound of beep when water reach one preset level of indication.
This is the circuit which shows you the different numerical levels of water in 7-segments LED display by using IC 74147 and IC CD4511.
Fire Alarm Circuit is base on Thermistor and IC 555 in circuit using Thermistor circuit detects the fire and make a sound using alarm.
This circuit can sense the presence of an activated mobile phone from a distance of one and a-half metres using IC 555 and IC CA3130.
This circuit can jam the all mobile network in the 1 meter area.WE have not use any IC in it.
A stun gun is a gadget used to produce a high voltage, low current signal, used mostly as a weapon to stun or send shock waves to the target
