Engineering Fundaas!!!!!!!

Ya this post relates to the engineering fundaas where we have some of the Engineering facts and a lot of discussions on that.

Do you have any opinion?

Yes? then come and discuss

Clap operated Light System

While you are sitting in your drawing room and you want to switch on or off the light, you have to move to the switch board and then only you can on or off the light. But what if someone tells you that you can do the same task by just clapping your hand then it seems like a magic?
I designed this project in 11th Standard. The basic components behind this project were commonly available in the market.
When anybody claps, the transducer(MIC) convers the sound energy into electrical energy. This electrical signals are now amplified as the obtained electrical signals are too weak. Now the amplified signals through the electronic circuit trigger the relay. Relay is a type of electro-mechanical switch and this gives switching to the AC supply and hence the light glows.

Automated Railway Crossing

This was the first project of my carrier. This project was based on the theme that many times, due to the manual faults the railway crossing remains open during the train arrival and due to such kind of mistakes severe accident occurs. To avoid these problems we have the concept of ‘Automated Railway Crossing System’.
The basic concept behind this project was to use Infra Red Sensors (Transmitter and Reciever)and the moost common IC 555(usually called as Timer IC). This project won the first prize in our school fair and this success gave boost to opt for Engineering.
For the Circuit and other details you may contact the author.