Electronics Lovers

Coming Soon

noreply@blogger.com (NJraj Gelani) — Wed, 28 Nov 2012 12:10:00 +0000

I was not there since long time and i haven't posted since long time and now i'm working for it and I'm gone publishing new projects with download option of PDF with Schematic and details.
If you want to get informed when I posts new projects please leave your email in comments.

Line Tracer Robot without MICROCONTROLLER

noreply@blogger.com (NJraj Gelani) — Fri, 19 Oct 2012 12:48:00 +0000

Hi friends...!! Today i am going to show you how to make a simple line tracer robot without using any kind of microcontroller..

The line tracer robot is the autonomous robot which follows the the given black path on white surface.. this robot has ability to sense the given guideline and to drive the motors according to the track as shown in the image.

Line tracer following the the track

STEP 1:

You will need following components to make this robot.

LM358 operational amplifier IC
220 ohm resistor
1K resistor
infra-red LED
photo-diode
red LED
Geared motors
BC547 transistor (2N3904 or 2N2222 works better.)
5K potentiometer
100 K potentiometer
9V battery and clip.

STEP 2:

Circuit Diagram:

Circuit diagram

i made the above circuit to make this simple line tracer..

A Simple and Cheap Dark-Detecting LED Circuit

noreply@blogger.com (NJraj Gelani) — Sat, 11 Aug 2012 11:44:00 +0000

It is very easy and i have made it for my science project. So I decided to posta link on this site. Here it is, but wait first watch my dark detector in a match box.

and now...

here it is the link... From Evil Mad Scientist

Build an FM Transmitter bug - Easiest Ever

noreply@blogger.com (NJraj Gelani) — Sat, 11 Aug 2012 11:27:00 +0000

I found this video today and decided to post it as my first post. I's very cool and easy and..... no special parts are needed. Watch it...

By the uploader:

In this video i am showing you how to make

a FM transmitter Bug using 2 transistors and

a very simple circuit board.

The reason i made this is because every

week i get emails from people that can not make there own

circuit boards or can not find the capacitor

trimmer for adjusting the frequency , well good news this

FM transmitter can do without all that ! so i made this easy to build

FM Transmitter.

This FM transmitter Bug is very easy to build.

Parts Used:

2N3904 transistors x 2

1nf ceramic capacitor

100nf ceramic capacitor

10pf ceramic capacitor

33pf ceramic capacitor

22nf ceramic capacitor x 2

1 - 5p to 30p air trimmer

100R resistor

10K resistor

47K resistor

68K resistor

1M resistor

10mm Mic

165cm antenna

Battery Plug

Some solder