The Rotating LED Clock

Time is an illusion...!!!!  

Mechanically scanning LED displays have a great place in the future. They may eventually replace the matrix of light bulbs found on standard displays. Spinning displays require much less power to drive the lights, as there is a fraction of the number of lights required in the matrix design. Our group hopes to take advantage of this and create an aesthetically pleasing clock. This clock also should keep the time accurately, slowly rotate the time so it is visible from all sides, is inexpensive to construct and maintain, and look more appealing than the average clock. The basic principle of working is the persistence of vision POV.

LUNAR LASER COMMUNICATION

INTRODUCTION

The present trends of communication are through transmission lines, optical fiber and microwave wireless communications. Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. Microwave transmission refers to the technology of transmitting information or power by the use of radio waves whose frequencies are  spectrum ranges across of roughly 1.0 (GHz) to 30 GHz referred as microwaves. These all type of communication technologies has their own disadvantages. In optical fiber communication losses like attenuation, absorption, scattering and radiative are occurred. Losses can occur in transmission lines if it shouldn’t perfectly terminated at its characteristic impedance. Microwave devices such as MASER can cause ozone depletion due to its high area of radiation.

Inflammable gas leakage detector

Arrest Fire...!!!!!

DANGERS OF INFLAMMABLE GASES LEAKING

Some of the inflammable Gases are not toxic. But they are extremely flammable and will cause an explosion; it will also kill you by asphyxiation if it leaks into an enclosed space and deprives you of oxygen. In case of methane it only becomes poisonous when it forms part of another gas and is subject to certain circumstances. The bad news is that this happens quite often.

Don’t worry…. Here is a solution for detecting the inflammable gas leakage. The circuit uses a gas sensor which can detect the presence of LPG, Propane, Methane and Hydrogen also other combustible streams. 

Follower the Command Line :)

INTRODUCTION

What is a line follower?

            Line follower is a machine that can follow a path. The path can be visible like a black line on a white surface (or vice-verse) or it can be invisible like a magnetic field.

Why build a line follower?

Sensing a line and maneuvering the robot to stay on course, while constantly correcting the wrong moves using feedback mechanism forms a simple yet effective closed loop system. As a programmer you get an opportunity to ‘teach’ the robot how to follow the line thus giving it a human-like property of responding to stimuli.

PCB from scrach

INTRODUCTION

A printed circuit board, or PCB, is used to mechanically support and electrically connect electronic components using conductive pathways, tracks or signal traces etched from copper sheets laminated onto a non-conductive substrate. It is also referred to as printed wiring board (PWB) or etched wiring board. A PCB populated with electronic components is a printed circuit assembly (PCA), also known as a printed circuit board assembly or PCB Assembly (PCBA). Printed circuit boards are used in virtually all but the simplest commercially produced electronic devices. The credit goes to Arthur Berry in 1913 patented a print-and-etch method in Britain.

PIC Kit 2 Clone

          Hi friends, Here am presenting a USB PIC programmer which is easy to build and supports almost in all computers including  latest laptop. It is supported by MPLAB IDE and Pic Kit 2 v2.61 for interfacing with computer and debugging the PIC. It uses a firmware which is used in genuine Microchip PIC programmers. Instead of ICSP (In Circuit series programming) a ZIF (Zero insertion force) socket is used which can make it easy to program the PIC and easy removal from the programmer. The USB interface is made using the PIC 18F2550.

My Prototype Programmer