ABSTRACT Here for the purpose, we have made four distinct stages for the effective implementation .The stages are described in brief as follows. In the first stage, we are constructing the transmitter circuit that transmits data and sequence bits at infrared frequency. Now the second part is to develop receiver circuit that receives infrared signals [...]

AUTOMATIC SOLAR TRACKER starts following the SUN right from dawn, throughout the day, till evening, and starts all over again from dawn next day. On cloudy weathers, it remains still and catches the SUN again as it slips out of clouds. It does all this automatically, employs cheap and inexpensive components, and is very accurate.Let [...]

Introduction:  Amplifier device that accepts a varying input signal and produces an output signal that varies in the same way as the input but has larger amplitude. The input signal may be a current, a voltage, a mechanical motion, or any other signal; the output signal is usually of the same nature. The most common [...]

I have designed it just for fun. First I want to know how the line sensor work. I used comparator IC using LM339, two H-bridge sensor using eight transistors, FCS9013, and four transistors, FSC 9012. For the sensor you can use LED and LDR as the light receiver. I changed the LDR sensor to IR [...]

Controlling devices using switches are common. From  a   few   decades  controlling devices using    remote  control   switches like infrared remote control  switch,  wireless remote control  switches,  light   activated  switches  re becoming popular. But these  technologies  have their own limitations. Laser beams are harmful to mankind. Some  technologies  like  IR  remote control are used for short distance  [...]

Abstract : To develop security system for houses and to save electric  power. Scope : This project proposes the development of security system for farm houses and residential houses. In an extremely mechanized world such as today’s it is necessary to make our life better, convertible and economical. This is the purpose for which the [...]