In this tutorial we are going to interface a 4×2 (8 key) touch keypad with ATMEGA32A microcontroller. We all know keypad is one of the most important input devices used in electronics engineering. This module does not have actual keys, but have specially designed capacitive metal pads, and these pads are very sensitive. So when a person […]
Touch Keypad Interfacing with ATmega32 Microcontroller Read More »
In this session we are going to design an 8×8 LED display with 8×8 LED matrix and ATmega8 microcontroller, which can show alphabets or names. A 8×8 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 be made by circuiting 64
8×8 LED Matrix Interfacing with AVR Microcontroller Read More »
In this tutorial we are going to design an 8×8 LED Matrix Scrolling Display using ATMEGA32, which will show scrolling alphabets. 8×8 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
Scrolling Text Display on 8×8 LED Matrix using AVR Microcontroller Read More »
A while ago I found some blog posts explaining how to use a LED matrix as a pendant (http://hackaday.com/2013/01/10/8×8-led-matrix-pendant-sealed-in-a-block-of-epoxy/ and https://sites.google.com/site/tinymatrix/ ). The 8×8 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
Flames effect with a 8×8 LED Matrix and ATMega328 Read More »
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
Running LED bicolor Read More »
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
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
RGB LED color mixer Read More »
With this circuit you can drive a unipolar stepper motor. It operates in full step mode. The AVR attiny2313 micro controller controls the pulses for the stepper motor. The pulses are amplified by the ULN2003 driver. The driver accepts 5V inputs, the output for the driver is up to 30V so you can connect an
Stepper motor driver Read More »
Schematic and build Below is the schematic of the LED VU meter. The circuit is builds with the ATMega328 board an two LED boards connected to it. You can also build it on a breadboard. For more detail: LED VU meter
This running LED or LED chaser is a good project for beginners in the microcontroller technology. It is easy to build, and the assembler program code can be easily adapted. This running LED light has 15 red 3mm LED’s. The 15 outputs of ports B and D are used to drive the leds. The LED’s light up
Running LED's using ATTiny2313 Read More »
