In today’s world security system plays a very important role. With increase in number of thefts and robbery, the need to develop an efficient security system whose primary function to provide safety to belongings of people ...

Tachometer is a device that gives the information about the rotational speed of any machine .The rotating machine could be any prime mover like an electric motor, diesel engine, petrol or gas driven engine, gas turbine, ...

The automated electricity billing system is implemented for the purpose of getting a fully automated electricity billing system. The aim of this system is to measure and monitor the electricity consumed by consumers ...