led Archives - Page 35 of 59 - Projects Tutorials Code Library for Atmels Atmega32 AVR

Barker Code-Locked Loop Synchronous Demodulator using ATtiny2313 microcontroller

A simple, low component count phase locked loop that locks onto and detects the amplitude of an incoming baseband 7 bit Barker code using a switched resistor demodulator that is driven directly by a microcontroller’s output pins. Balanced modulators using resistors and a microcontroller’s output pins. Locking into oncoming Pseudo-noise (PN) stream. Microcontroller modulates its […]

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Prime Calculator is Complete using ATMega8 Microcontroller

Calculator Projects / Ibrar Ayyub

My microcontroller-powered prime number generator/calculator is virtually complete! Although I’m planning on improving the software (better menus, the addition of sound, and implementation of a more efficient algorithm) and hardware (a better enclosure would be nice, battery/DC wall power, and a few LEDs on the bottom row are incorrectly wired), this device is currently functional

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LED Dog Collar using ATTINY2313 Microcontroller

LED Projects / Ibrar Ayyub

LED Dog Collar So this is a pretty simple project, but I thought it was a clever idea. I have 2 dogs, a lab and a lab mix. The lab “Sunshine” likes to runaway a lot if we let her outside at all. She always comes back, but we can’t find her whenever she leaves.

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BUILD A SIMPLE SERIAL PROGRAMMER FOR AVR DEVICES using ATtiny2313 Microcontroller

Microcontroller Programmer Projects / Ibrar Ayyub

Atmel described a simple programmer based on the AT90S1200 (NOT the AT90S1200A) controller in their application note. AVR910 (a modification to use the AT90S2313 is also given below). The circuit is so small and simple. I was able to put two of them together without using a printed circuit board. Taking only about an hour

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LED DOT Matrix Pong using ATMega16 Microcontroller

LED Projects / Ibrar Ayyub

The classic pong game. Two players. Press the buttons to move paddles up/down. Ball bounces back and forth. If you fail to catch it, your opponent gets one point. Score difference is showed with blue LEDs. Blue LED = lead by one point. If you then win another point, you win the game, and your

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LED Menorah using ATtiny13 microcontroller

LED Projects / Ibrar Ayyub

Last week on hack-a-day I saw their post on an LED Menorah that was powered by a 9v battery with the lights controlled by dip switches. I thought to myself, “gee, that’s not a very creative design”. There was redemption in the minimalist designs linked too showing a menorah soldered to a tiny2313 and one

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How to drive 595 shift registers with AVR hardware SPI using ATmega168 microcontroller

AVR ATmega Projects, Interfacing(USB - RS232 - I2c -ISP) Projects / Ibrar Ayyub

Driving a shift register using an AVR chip’s built-in hardware is really quite easy. Most of their offerings have an SPI module, or Serial Peripheral Interface. A shift register is exactly that, a peripheral device that communicates via a serial line. All we need to do is hook up our connections and use a few

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ATtiny12 fuse restorer using microcontroller

AVR ATmega Projects / Ibrar Ayyub

This restores the fuses in an ATtiny12 via High Voltage Serial Programming. Plug an ATtiny12 into the 8 pin socket and hold down “GO!” button. The LED will come on at the end of the programming process, which only takes a couple hundred millisecond. The fuses are now restored to their factory default states. This

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LED Matrix Display using TD62783 microcontroller

LED Projects / Ibrar Ayyub

Last Sunday I gave a workshop in TOG as part of it’s Engineers Week 2011 activities. We spent the day assembling a 8×8 Red/Green LED Matrix Display circuit which I designed in strip board. The circuit forms an interface between a micro controller and a 8 by 8 Dual Colour Common Anode LED Module. This

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AVR mod player using ATmega325 microcontroller

Sound - Audio Projects / Ibrar Ayyub

In 2006, I took part in an electronic demo competition on a Dutch forum (see this topic). Because computer demos like they used to have on old machines like the Amiga or Commodore are harldy made anymore since hardware has come such a long way, someone had the idea to do the same, but on

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