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Scrolling Text Display on 8×8 LED Matrix using AVR Microcontroller

In this tutorial we are going to design an 8x8 LED Matrix Scrolling Display using ATMEGA32, which will show scrolling alphabets. 8x8 LED Matrix contains 64 LEDs (Light Emitting Diodes) which are arranged in the form of a matrix, hence the name is LED matrix. We are going to make this Matrix by soldering 64 LEDs on to the perfboard or DOT PCB. The LEDs can be of any color, choose the ones which are available ...

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Open Badge: The LED Badge

Badges are amazing things. Better when you make your own. I was about to attend the 1st MakerFest at NID, Ahmedabad and thought of taking something unique to the event. Badge was a great option and suited the maker theme of the event. So, sitting down with a pen and paper i drew what it would look like and came up something that could be retro-fitted to a usual boring office badge and would have a LED array ...

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Flames effect with a 8×8 LED Matrix and ATMega328

A while ago I found some blog posts explaining how to use a LED matrix as a pendant (http://hackaday.com/2013/01/10/8x8-led-matrix-pendant-sealed-in-a-block-of-epoxy/ and https://sites.google.com/site/tinymatrix/ ). The 8x8 matrix pendant looked cool, but it was missing detailed information on which parts to use and how to solder everything together. With help from a friend, Uriel Guy, we managed to figure ...

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Getting Started With the ATMega328P

In the Internet of Things movement, people across the globe are connecting their stuff – TVs, pets, even houseplants - to the internet and transmitting all sorts of data. If you’re going to be a part of that movement, or want to dabble in creative prototyping on a budget, it’s important to get to know our little friend: The ATMega. The real benefit of using this microcontroller is that it’s only $4 US, wher ...

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Clock/temperature LED display

This project is based on the timer/counter 0 example. It shows time, date and temparature on 7 segment displays. Instead of the LCD display the time is shown on a four digit 7 segment display with common cathode. The date and temparature is shown on a 7 segment LED display with comon anode. The ATMEGA328 is used to control the display, the ATMEGA8 can also be used. The circuit use 6 I/O pins from port B and ...

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Running LED bicolor

This is a good project for beginners. It is easy to build.This running LED light uses seven bicolor led's red and yellow, they light up in a pattern that can be made within the program code.The program code is written in assembler. ATMELs AVR STUDIO is used to write the program. The project uses the AT1200 but the AT2313 can also be used. As a clock source a 4Mhz ceramic resonator is used, this is cheaper t ...

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LED thermometer

his project shows the temperature on a three digit 7-segment display, it measures the temperature from -9.5 to 99 degrees Celcius in 0.5 C steps, or from 0 to 210 degrees Fahrenheit in 1.0 degrees steps. Because of the LED display the temperature is also readable in the dark. This project is available pre-assembled and tested at www.bizztronix.eu The TCN75 from MicroChip is used to measure the temperature. ...

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