This is a fun speaker timer I made for some upcoming conferences. It uses a 4-digit charlieplexed LED (pseudo 7-segment) display and is driven by a AVR ATMega328 or an Arduino. It allows a default time to be set, can be paused, and will put out 5 Volts on several IO lines when 10, 5, […]
Fun Hackable Speaker Timer using ATMega328 microcontroller Read More »
This Instructable will be about designing a music player from using various building blocks. You will understand the communication between the microcontroller, memory, computer, LCD display, RTC, IR remote, and the music file decoder. I will try my best to to teach you in a way so that you can design your own projects using
Music Playing Alarm Clock using Microcontroller AT90USB1286 Read More »
This projects gives you a simple wav player with help of the MMC card connected to ATmega32. You can use any AVR microcontroller. The MMC card works on 3.3v so a 3.3v regulator is used and the 5v to 3.3v level conversion is done by the combination of resistors. The LF33CV is used for the
MMC card based WAV player using atmega32 Read More »
Here’ s an melody player with Atmega16. The command “Sound Speaker” is used to generate sound. This is the inbuilt command in Bascom AVR. For more Detail: Digital Melody player using atmega16 microcontroller
Digital Melody player using atmega16 microcontroller Read More »
So far we have seen various devices that are talking, such us cars, dolls etc.This project is also like one of them. you can use it in various projects such us IVS, robots etc. There are various voice recording IC’s. They have different recording time and sampling frequency. Most of the IC’s can record less
ISD4004 based voice recorder Read More »
This project is used to measure the distance using ultrasonic sensors. The ultrasonic signal passes through the atmosphere to a barrier, which we want to measure the distance. Part of this signal is reflected and travels back to the receiver. The time delay between sending and receiving signals are then determined by distance barriers. The
Ultrasonic range finder using ATMega8515 Read More »
Introduction: This is my first AVR based hobby project and the most successful one compared to my all previous stuff. I am 100% satisfied with this work. Few months ago, I tried to make a wav player using a PIC16F877A. It worked anyway, but the audio quality was not so good for higher sampling rate
TV remote controller 160KHz High Quality Stereo MMC WAV player using ATMEGA32 Read More »
Introduction: But now I can do this very easily by a simple digital signal processing using a microcontroller. It’s concept is very simple, ie we need to apply a proper delayed feedback in digital samples with in a circular buffer. I did this using an atmega32 microcontroller and it worked fine. This is simple but
Generating AUDIO ECHO using Atmega32 microcontroller Read More »
“All waveforms, no matter what you scribble or observe in the universe, are actually just the sum of simple sinusoids of different frequencies.” Hi, I am just refreshing the basics of fourier transform. I am not an expert. Now I did a small audio spectrum analyzer(0 – 10KHz) on a 16×2 character lcd using an
Implementing Discrete Fourier Transform in Atmega32 to make an audio spectrum analyzer Read More »
