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Using ATMega328 Microcontroller Custom Tron Disc Mod

In this Instructable, I cover modding the store-bought Deluxe Identity Disc to an upgraded version with 64 leds, controlled by an AVR MCU. The upgraded version is costume-ready and would be an excellent addition to your Tron costume - it'll also look great on your desk/dresser/etc. My 7 year old daughter watched Tron:Legacy with me on Father's day and decided instantly that she wanted to be Quorra for Hallo ...

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DIY TiX Clock using ATMEGA16 AVR microcontroller

Here's my instructable for a DIY TiX clock.  It is powered by an AVR microcontroller.  The display is made up using a piece of reflector grid you find covering office lights, some smoked perspex, a diffuser and a bunch of LED's.  The Idea came from the Tix clocks you can buy at various places on the web, but nothing beats making it yourself.  It is a talking point in the lounge and once you are used to read ...

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Starry Ceiling for Kids Bedroom Using AT90S8538 microcontroller

When my little girl was born I wanted to make her a special night light for in her room. I made her a ceiling light with twinkling stars. It is made up of a piece of custom wood with 100 LEDs mounted in it. An AVR AT90S8538 micro controller runs a bascom program that produces a random pattern on these 100 LEDs. The LEDs are connected in a 8x13 matrix and the processor scans this matrix so that only 1 light ...

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Using max7219 microcontroller Build an electronic score keeper/storage box

The instruction manual for each of the MANY munchkin series of card games always includes a phrase like "you will need a 10 sided die for each player or some other device to keep score." 10 sided dice are not hard to find in my house, but I took this as a challenge to make my own device to keep score.  I created this electronic score keeper that also doubles as a box for transporting a subset of my family's ...

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Using AtTiny2313 microcontroller Build an electronic polyhedral die

Dice are fun. Polyhedral dice used in D & D are even more fun, particularly in big handfuls of different sizes. But a handful isn't always practical. Ever since I saw the dragon bone electronic die wand advertised in the back pages of Dragon magazine when I was a kid, I wanted an electronic device to act as a substitute for all my dice. This device won't substitute for the tactile feel of rolling a hand ...

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Turn a TV-B-Gone into a super camera remote

Intro: My Nikon DSLR has an infrared remote function (remote sold separately) that is really handy, but fairly limited in range. A while ago, I bought a TV-B-Gone Kit from it's inventor Mitch Altman, and it can turn TV's off from a great distance. I thought, "Hey, this thing is open source! I can hack this!" So follow along for replacing the firmware to create a super-powerful camera remote. You could even ...

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How to drive a lot of LEDs from a few microcontroller pins.

Using the fact that many microcontroller pins have three states (+V, GND, or "high impedence", you can drive N*(N-1) LEDs from N pins. So the little 8 pin microcontroller like a PIC12Fxxx or an ATtiny11 can drive 20 LEDs on its five available output pins, and still have one pin left for some kind of input. The current crop of low pin-count microcontrollers (6 pins to 20 pins on the whole package) are attrac ...

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