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8×8 LED Matrix Interfacing with AVR Microcontroller

In this session we are going to design an 8x8 LED display with 8x8 LED matrix and ATmega8 microcontroller, which can show alphabets or names. [caption id="attachment_34818" align="alignnone" width="650"] LED Matrix Interfacing with AVR Microcontroller[/caption] A 8x8 LED matrix contains 64 LED (Light Emitting Diodes) which are arranged in the form of a matrix, hence the name LED matrix. These matrixes can b ...

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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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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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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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RGB LED color mixer

Page 1 of 4 An RGB LED is a LED which has three LED's integrated in one packaging. These LED's have the colors Red, Green, and Blue. The RGB LED used here is a hyperflux LED with common cathode, which can draw 20mA current. Such a LED costs about 2€. With these three colours you can mix to any colour. When using 8-bit PWM a number of 256 * 256 * 256 combinations can be made, thus the LED can show 16.777 mil ...

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