eXtreme Electronics

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 [...]

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 [...]

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 [...]

Happy Bengali New Year !

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

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

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 [...]

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 [...]

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

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 [...]

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 [...]

PC Controlled Robot

Avinash — Sun, 25 Dec 2011 12:36:21 +0000

In this tutorial we will discuss a simple PC controlled robot. The Robot PC link will be a RS232 serial line. The robot will have only five commands. Move forward (RS232 char 'F' or 'f') Move backward (RS232 char 'B' or 'b') Turn Left (RS232 char 'L' or 'l') Turn Right (RS232 char 'R' or [...]

We wish you a Merry Christmas!

Avinash — Sun, 25 Dec 2011 04:00:14 +0000

We wish you a Merry Christmas!

High Voltage Solenoid Interface with MCU

Avinash — Mon, 19 Dec 2011 04:20:07 +0000

This mini article provides a small circuit idea to interface a 12V or 24V DC Solenoid (or relay) with a 3.3 or 5V microcontroller's i/o pins. Datasheets BD139 Power Transistor (For PINOUT refer this document)

GSM-GPRS Module SIM300

Avinash — Sat, 17 Dec 2011 04:28:08 +0000

GSM-GPRS Module SIM300 with sim card holder, RS232 interface, power supply, buzzer and audio interface. Nice for learning the SIM300 module. You can connect this to PC using a USB to Serial Adaptor and use terminal programs such as Realterm to send receive data. Buy SIM300 Module from our store.

Time Input Dialog for Graphic LCD

Avinash — Sat, 03 Dec 2011 07:57:39 +0000

GUI Frameworks of all modern OS like Windows, Linux (Qt & GTK+), MAC etc have a concept of standard dialogs. For example all applications running under Windows shows the same file open dialog for selecting a file. Similarly their are standard dialogs for folder selection, colour selection, font selection etc. This concept has several advantages, [...]

DS1307 I2C RTCC Interface using SoftI2C lib

Avinash — Wed, 30 Nov 2011 13:04:33 +0000

In the last tutorial, I explained you how to use our SoftI2C library to read and write a 24CXX series I2C EEPROM. Now I will continue our exploration and write a register access layer for the DS1307 chip. The DS1307 chip is a real time clock and calendar IC. The register access layer that we [...]

24CXX I2C EEPROM Interface using SoftI2C lib

Avinash — Sat, 26 Nov 2011 14:13:04 +0000

In this tutorial I will show you how to use our easy to use open source Soft I2C library to access a 24C64 EEPROM chip. We discussed the library in our previous tutorial. The functions developed in this tutorial will use services of the I2C library to read and write the EEPROM. The EEPROM access [...]

Software I2C Library for AVR MCUs

Avinash — Thu, 24 Nov 2011 07:16:42 +0000

Inter IC Communication or I2C is a two wire serial communication bus used to connect a variety of external peripheral with a microcontroller. Most common are EEPROMs, RTC, Port Expanders etc. Most leading MCUs comes with at least one dedicated I2C host adaptor built in. But some times we need more than one I2C interface [...]

Analog Clock on GLCD – Drawing the Face

rishi — Mon, 14 Nov 2011 12:05:51 +0000

Hello friends, In the previous tutorials of graphical lcd, we have learnt about the basic primitive and custom design functions. So drawing an analog clock on graphical lcd is a bit more advanced project. So it’s really exciting to do this project and for this we have to use a simple mathematical calculation and some [...]

Happy Diwali !

Avinash — Tue, 25 Oct 2011 07:54:37 +0000

Happy Diwali !

Tracked Wheel Robotics Platform

Avinash — Fri, 21 Oct 2011 06:07:59 +0000

Tracked Robot, Chain Links Tracked Robot, Chain Links Chain Links Connected Metal Connecters How to connect chain links. Complete Tracks with 18 links These tracks then can be fitted on the wheels. The track wheel set comes with the chain links, metal connecter and four plastic wheels. For more details [...]