Sunday, February 23, 2014

Power Generation from Speed Breaker

Simple demonstration of generating Electricity from Speed Breakers. The Mechanical force acting on the speed breaker is converted into electrical energy. Here a set of LEDs are connected to the output of the generator which produces power when any vehicle crosses the speed breaker.

Saturday, February 22, 2014

Hand Gesture Controlled Robot

Hi all..This is a Wheeled robot with its movements controlled by hand gestures. The remote control is connected to the Hand Glove which has sensors mounted over the glove fingers. For corresponding gestures robot moves forward, reverse, left and right.

DIY Windmill using PVC Blades

Simple Windmill designed using plastic blades cut from a 6in PVC pipe and shaft connected to a 24V permanent magnet DC motor (PMDC) which in reverse acts as a DC generator. Blades length are 1.5feet. Self starting at low wind speeds with RPM range of 40-70RPM max.

Infra Red Burglar Alarm

This is a basically IR obstacle detector circuit. Here we use an IR LED and an IR photo diode. When the IR rays falls on the IR sensor the circuit remains silent. If any obstacle enters in between the sensor a buzzer sound is produced.Suitable for electronic hobbyists and students.

Sunday, February 9, 2014

How BIG Is Google?

How BIG Is Google? Many of us use Google services each day but very few of us ask the question, "How BIG is Google?" Obviously this question cannot be answered directly, however, the sheer size of Google can be released by the hard facts and figures shown in this short film.

Story of Send on Google Green

Inspiring Google Story - Larry Page