eXtreme Electronics

Remote Temperature Monitoring using GSM – AVR Project

Avinash — Sun, 07 Apr 2013 07:44:25 +0000

Temperature monitoring have wide application in daily life. In modern day keeping an eye on temperature of places such as server rooms, hospital rooms, warehouses and green houses can help solve many problems. But with the use of normal temperature sensors, someone needs to go to the place in order to view the temperature. But [...]

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Introduction to AVR Microcontrollers

Avinash — Wed, 31 Oct 2012 10:25:33 +0000

Just what is a microcontroller? To get you understand quickly I define a microcontroller as a single chip computer. Yes it is a full blown computer in its own. It has a C.P.U., RAM, some amount of EEPROM (for secondary storage i.e. permanent storage without power), many on-chip peripherals(Timer,Serial communication, Analogue to Digital converters etc.). [...]

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AVR UBRR Calculator for Android

Avinash — Thu, 25 Oct 2012 13:58:53 +0000

If you have worked with AVR's USART you must be knowing that the first step is to figure out the value of UBRR (USART Baud Rate Register) the formula is given in the datasheet. So every time you need a new baud rate or you change the clock speed of MCU, you need to recalculate [...]

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Interfacing Analog Joystick with AVR ATmega32

Avinash — Sat, 20 Oct 2012 06:37:00 +0000

If you have played games on console you must be knowing what a joystick is. In games a joystick is generally used to control the motion of character or a vehicle (like plane or car). Joystick give a very realistic two dimensional control! Joystick are also used to control the motion of real objects like [...]

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Door Entry Detection for MCU Based Designs

Avinash — Fri, 12 Oct 2012 07:13:02 +0000

This article discuss how you can detect the entry of a person in a room and get this signal inside your MCU. This is NOT a complete project but just an idea that can be implemented in many different projects. The technique is to use use an IR transmitter and a receiver pair. One side [...]

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Interfacing TCS3200 Colour Sensor with AVR ATmega32

Avinash — Tue, 04 Sep 2012 12:26:39 +0000

Detecting colour of an object can be an interesting and useful electronic application. It can be realized using a colour sensor like TCS3200 and a general purpose microcontroller like AVR ATmega32. TCS3200 Colour Light to Frequency Converter Chip Fig. TCS3200 Chip . TCS3200 chip is designed to detect the colour of light incident on [...]

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SMS Based Voting System – AVR GSM Project

Avinash — Mon, 27 Aug 2012 11:32:36 +0000

Hi friends ! Here I am showing a microcontroller based project called the "GSM Based Voting System". Using this system you can ask your users to vote for any of the four options. Four available options are identified by a letters 'A', 'B', 'C' and 'D'. User can vote for any option by sending a [...]

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Sending an Receiving SMS using SIM300 GSM Module

Avinash — Thu, 02 Aug 2012 07:39:03 +0000

Hi friends in this part we will have a look at the functions related to text messages. By the end of this article you will have a clear idea of how to wait for a text message, read the message, send a new text message and deleted a received message. We have already discussed the [...]

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GSM Module SIM300 Interface with AVR Amega32

Avinash — Sun, 29 Jul 2012 06:47:09 +0000

A GSM/GPRS Module like SIM300 can be used for any embedded application that requires a long range communication, like a robot in Chennai controlled by a person sitting in New Delhi! Or simply a water pump in a rice field turned on in the morning by a farmer sitting in his house few kilometers away! [...]

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Line Following Robot using AVR ATmega8

Avinash — Thu, 05 Jul 2012 12:35:39 +0000

One of the most basic autonomous robot you can build is a line following robot(LFR). This type of robot is run over a white surface which has an arbitrary path drawn over it by using back paint. The task of the robot is to run exactly along this painted path. You may note that the [...]

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PS2 Keyboard Interface with AVR MCU

Avinash — Thu, 14 Jun 2012 08:15:05 +0000

A PC keyboard is an old and trusted human machine interface. Most peoples are familiar with it. When a text entry is required it is the best method. If we can interface the PC keyboard with an AVR MCU we can create a whole lot of interesting applications! This tutorial will focus on our easy [...]

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Making a Line Sensor using IR Receiver

Avinash — Tue, 24 Apr 2012 10:41:36 +0000

A line follower robot, or a LFR in short, is a simple autonomous robot that optically tracks a line made on the surface of the floor. That means you have an arbitrary line drawn on the floor and the robot tracks it by moving right along it! The line is sensed using a piece of [...]

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Displaying Custom Characters on Alphanumeric LCDs

Avinash — Fri, 20 Apr 2012 11:26:38 +0000

You can use this LCD Custom Char Builder Software to quickly and easily build custom characters for alphanumeric LCD modules. LCD Custom Char Maker A standard alphanumeric LCD module supports eight custom characters. So our software has view for all eight custom chars named from Char 0 to Char7. You can select any char to [...]

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AVR ATmega8 Project – LED Moving Message Display

Avinash — Sun, 15 Apr 2012 06:44:00 +0000

An interesting project that can be done using Microcontroller is a LED message scroll er. It teaches you a quite lot of things. So I decided to make one. I made the hardware design modular and cascadeble That means the whole display is made up of several 15x7 modules. Each module has everything to drive [...]

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Happy Bengali New Year !

Avinash — Sat, 14 Apr 2012 02:57:06 +0000

We wish all our friends a very happy Bengali New Year !

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Translators Wanted

Avinash — Tue, 10 Apr 2012 04:57:49 +0000

Hi All, We are planning to make our Software eXtreme Burner - AVR available in your local languages! So we need translators. Those who are interested in translating the app may leave a comment here, so that we can contact you latter. How to translate? Download the message catalog file (English). It has a pair [...]

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eXtreme Burner – AVR 1.3 Beta Test

Avinash — Mon, 02 Apr 2012 04:10:43 +0000

Hi All, I was adding support for some chips with big flash memory (like ATmega2560 etc.) in my Programmer Software eXtreme Burner - AVR. But right now I do not have any ready setup with ATmega2560 so I ask anyone of you who have got a ATmega2560 (or ATmega128) setup to please carry out a [...]

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Wireless Camera, IR Sensor, Stepper Motors, Switch Boxes – New Products

Avinash — Tue, 24 Jan 2012 05:31:31 +0000

Wireless AV Camera Sharp IR Rangefinder Stepper Motors DPDT Switch Box 6 Leg DPDT Switch

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High Power Multiplexed Seven Segment LED Display Driver

Avinash — Fri, 06 Jan 2012 08:22:03 +0000

One of the most common place where small MCUs are used is to drive big seven segment displays in public area. For example the bank token number, flight or train schedule, train coach number, production volume (in factories), current forex(in banks) or gold rates etc. Since these are public display they should be big (and [...]

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DS1307 Based RTC Module

Avinash — Thu, 29 Dec 2011 08:28:38 +0000

An RTC Module or a Real Time Clock Module helps a system keep track of current time (hour, minutes and seconds). It automatically increments the time without any help from the host (microcontroller). Other benefit is that it has a backup power supply from a small coin cell that help it maintain the time in [...]

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