Instructables: exploring - technology - microcontrollers - attiny http://www.instructables.com Wed, 19 Jun 2013 22:51:17 PDT BLOX v1.01 Stargate LED Lighted Necklace http://www.instructables.com/id/Stargate-LED-Lighted-Necklace/
Stargate LED Lighted Necklace - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FA0/B8N8/HHRZJX9X/FA0B8N8HHRZJX9X.SQUARE2.jpg http://www.instructables.com/files/deriv/FA0/B8N8/HHRZJX9X/FA0B8N8HHRZJX9X.SQUARE.jpg http://www.instructables.com/files/deriv/FA0/B8N8/HHRZJX9X/FA0B8N8HHRZJX9X.SMALL.jpg caitlinsdad Ever need to have a Stargate handy? You can wear one around your neck and have it at the ready. Ears starting to bleed from the volume of the music at the club or that Euro-chic clothing retailer outlet?  Activate the Stargate to jump to another world.  Light sequence needs to be just right.  Don't ...
By: caitlinsdad

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Tue, 11 Jun 2013 07:56:06 PDT
Honey, I Shrunk the Arduino: Moving from Arduino to ATtiny and writing your code in pure AVR-C http://www.instructables.com/id/Honey-I-Shrunk-the-Arduino-Moving-from-Arduino-t/
Honey, I Shrunk the Arduino: Moving from Arduino to ATtiny and writing your code in pure AVR-C - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FCB/VXGO/HHJOINW3/FCBVXGOHHJOINW3.SQUARE2.jpg http://www.instructables.com/files/deriv/FCB/VXGO/HHJOINW3/FCBVXGOHHJOINW3.SQUARE.jpg http://www.instructables.com/files/deriv/FCB/VXGO/HHJOINW3/FCBVXGOHHJOINW3.SMALL.jpg internaut Arduino is a great hard- and software platform, but with all its features it is also a bit bloated and often you only need a small part of all the features. Sometimes your project requires to have smaller and cheaper devices. What you might need is the ATtiny microcontroller! For about $1 you can ge...
By: internaut

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Tue, 11 Jun 2013 02:54:12 PDT
ATTiny45/85 multi voltage "smart relay" http://www.instructables.com/id/ATTiny4585-multi-voltage-smart-relay/ http://www.instructables.com/files/deriv/FJY/8A1V/HFSHULJP/FJY8A1VHFSHULJP.SQUARE2.jpg http://www.instructables.com/files/deriv/FJY/8A1V/HFSHULJP/FJY8A1VHFSHULJP.SQUARE.jpg http://www.instructables.com/files/deriv/FJY/8A1V/HFSHULJP/FJY8A1VHFSHULJP.SMALL.jpg MildLeeInterested This entry is intended as an overview only.  If there is interest, I will expand it to include assembly instructions and some basic code. I've now added the gerber files (and .pdf files for anybody who wants to have a go by the toner transfer method, or similar). The aim of this board is to provide...
By: MildLeeInterested

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Sun, 28 Apr 2013 02:51:08 PDT
ATTiny85 Traffic Light http://www.instructables.com/id/ATTiny85-Traffic-Light/
ATTiny85 Traffic Light - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FLF/0LQL/HEBNH7UI/FLF0LQLHEBNH7UI.SQUARE2.jpg http://www.instructables.com/files/deriv/FLF/0LQL/HEBNH7UI/FLF0LQLHEBNH7UI.SQUARE.jpg http://www.instructables.com/files/deriv/FLF/0LQL/HEBNH7UI/FLF0LQLHEBNH7UI.SMALL.jpg nthdesign This instructable will show you how to build a fun traffic light circuit using the cheap and powerful ATTiny85 microcontroller. The ATTiny85 can be programmed using the Arduino Processing language, and can do many of the things an Arduino can do. Learning how to use the ATTiny85 in this way will let...
By: nthdesign

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Sun, 17 Mar 2013 20:28:17 PDT
ATtiny Programming Shield for Arduino http://www.instructables.com/id/ATtiny-Programming-Shield-for-Arduino-1/
ATtiny Programming Shield for Arduino - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F3M/MHDQ/HD8TWXKP/F3MMHDQHD8TWXKP.SQUARE2.jpg http://www.instructables.com/files/deriv/F3M/MHDQ/HD8TWXKP/F3MMHDQHD8TWXKP.SQUARE.jpg http://www.instructables.com/files/deriv/F3M/MHDQ/HD8TWXKP/F3MMHDQHD8TWXKP.SMALL.jpg Plusea This little circuit sits nicely ontop of an Arduino board and lets you quickly plug in an ATtiny chip for programming using the Arduino "language" and IDE to write the code, and the Arduino board as an ISP programmer to upload the code to the tiny chip. These instructions are also published on our ...
By: Plusea

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Fri, 22 Feb 2013 14:14:06 PST
Attiny serial monitor using arduino walkthrough http://www.instructables.com/id/Attiny-serial-monitor-using-arduino-walkthrough/
Attiny serial monitor using arduino walkthrough - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FKL/8M3Q/HAQ31LNM/FKL8M3QHAQ31LNM.SQUARE2.jpg http://www.instructables.com/files/deriv/FKL/8M3Q/HAQ31LNM/FKL8M3QHAQ31LNM.SQUARE.jpg http://www.instructables.com/files/deriv/FKL/8M3Q/HAQ31LNM/FKL8M3QHAQ31LNM.SMALL.jpg hilukasz Allllllllllright dudes and dudets. Here is whats up, we're going to make attiny and arduino bestest of friends. If you have ever worked with capacitive switches you know how much it makes you want to smash your face into a wall...Now imagine you have no way to monitor output, well that is what I wa...
By: hilukasz

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Mon, 7 Jan 2013 11:13:14 PST
Christmas Tree PCB http://www.instructables.com/id/Christmas-Tree-PCB/
Christmas Tree PCB - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FZI/NC2J/HAQ30LRB/FZINC2JHAQ30LRB.SQUARE2.jpg http://www.instructables.com/files/deriv/FZI/NC2J/HAQ30LRB/FZINC2JHAQ30LRB.SQUARE.jpg http://www.instructables.com/files/deriv/FZI/NC2J/HAQ30LRB/FZINC2JHAQ30LRB.SMALL.jpg LostRite This is a fun way to light up a Christmas card. It will help if you have some experience in any of the following areas: chemistry, PCB etching, avr programming, writing simple C programs, and / or soldering (surface mount soldering). If you don't then the trickiest part will be the soldering since i...
By: LostRite

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Mon, 17 Dec 2012 08:53:14 PST
Color Changing LED Tree http://www.instructables.com/id/Color-Changing-LED-Tree/
Color Changing LED Tree - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FJH/I290/H6DWVKBC/FJHI290H6DWVKBC.SQUARE2.jpg http://www.instructables.com/files/deriv/FJH/I290/H6DWVKBC/FJHI290H6DWVKBC.SQUARE.jpg http://www.instructables.com/files/deriv/FJH/I290/H6DWVKBC/FJHI290H6DWVKBC.SMALL.jpg xBacon Ever wanted an LED tree? Well now you can have your LED tree and eat it too (no, wait, you probably shouldn't)... Gather the parts You will need: 1x ATtiny85 10x male header pins Solid core wire, 2 colors A bunch of LEDs 1x Arduino Uno to program the ATtiny Program the ATtiny To prep the Ard...
By: xBacon

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Thu, 30 Aug 2012 10:19:46 PDT
Rainbow glowing ping pong http://www.instructables.com/id/Glowing-ping-pong/ http://www.instructables.com/files/deriv/F7J/3MMV/H0OJ01CS/F7J3MMVH0OJ01CS.SQUARE2.jpg http://www.instructables.com/files/deriv/F7J/3MMV/H0OJ01CS/F7J3MMVH0OJ01CS.SQUARE.jpg http://www.instructables.com/files/deriv/F7J/3MMV/H0OJ01CS/F7J3MMVH0OJ01CS.SMALL.jpg jedreg Build up a tiny board that fits into ping-pong to glow in rainbow colors using RGB LED driven by attiny13 microcontroller. Device is powered from CR2032 battery and uses software switch with auto power-off. Every electronics hobbyist can replicate this DIY device visiting project homepage offeri...
By: jedreg

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Thu, 12 Apr 2012 00:10:23 PDT
PCB for Conway's game of life http://www.instructables.com/id/PCB-for-Conways-game-of-life/
PCB for Conway's game of life - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FQL/JKDJ/GWF6ET62/FQLJKDJGWF6ET62.SQUARE2.jpg http://www.instructables.com/files/deriv/FQL/JKDJ/GWF6ET62/FQLJKDJGWF6ET62.SQUARE.jpg http://www.instructables.com/files/deriv/FQL/JKDJ/GWF6ET62/FQLJKDJGWF6ET62.SMALL.jpg theAVRdude This is my version on PCB of 20x4 lcd game of life. I did not write the code only made an Eagle PCB for it. http://www.daqq.eu/index.php?show=prj_game_of_life An error on the schematic I followed the schematic provided on the site only to realise the Backlight LEDs where inverted. Anyway for th...
By: theAVRdude

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Mon, 26 Dec 2011 09:06:07 PST
Using the 8Pin ATTINY programming shield with an external clock http://www.instructables.com/id/Using-the-8Pin-ATTINY-programming-shield-with-an-e/
Using the 8Pin ATTINY programming shield with an external clock - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FFI/9UZJ/GV8UU6LH/FFI9UZJGV8UU6LH.SQUARE2.jpg http://www.instructables.com/files/deriv/FFI/9UZJ/GV8UU6LH/FFI9UZJGV8UU6LH.SQUARE.jpg http://www.instructables.com/files/deriv/FFI/9UZJ/GV8UU6LH/FFI9UZJGV8UU6LH.SMALL.jpg osbock Instructables author extraordinaire Randofo created a great programming shield to use your Arduino to program 8 pin ATTINY processors. He was even generous enough to give 50 copies of it out to people who authored instructables using AVR processors. It works great on brand new ATTINYs and any chip t...
By: osbock

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Mon, 21 Nov 2011 08:39:23 PST
Build an electronic polyhedral die http://www.instructables.com/id/Build-an-electronic-polyhedral-die/
Build an electronic polyhedral die - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FMS/Y8K4/GTLTN5VV/FMSY8K4GTLTN5VV.SQUARE2.jpg http://www.instructables.com/files/deriv/FMS/Y8K4/GTLTN5VV/FMSY8K4GTLTN5VV.SQUARE.jpg http://www.instructables.com/files/deriv/FMS/Y8K4/GTLTN5VV/FMSY8K4GTLTN5VV.SMALL.jpg mkanoap 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 ...
By: mkanoap

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Tue, 11 Oct 2011 14:10:41 PDT
Build an electronic score keeper/storage box http://www.instructables.com/id/Build-an-electronic-score-keeperstorage-box/
Build an electronic score keeper/storage box - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FKE/71US/GSLEWO3Q/FKE71USGSLEWO3Q.SQUARE2.jpg http://www.instructables.com/files/deriv/FKE/71US/GSLEWO3Q/FKE71USGSLEWO3Q.SQUARE.jpg http://www.instructables.com/files/deriv/FKE/71US/GSLEWO3Q/FKE71USGSLEWO3Q.SMALL.jpg mkanoap 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...
By: mkanoap

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Mon, 26 Sep 2011 13:41:12 PDT
AVR LCD Namebadge http://www.instructables.com/id/AVR-LCD-Namebadge/
AVR LCD Namebadge - More DIY How To Projects]]> http://cdn.instructables.com/FCI/5FPM/GL24A9HP/FCI5FPMGL24A9HP.SQUARE2.jpg http://cdn.instructables.com/FCI/5FPM/GL24A9HP/FCI5FPMGL24A9HP.SQUARE.jpg http://cdn.instructables.com/FCI/5FPM/GL24A9HP/FCI5FPMGL24A9HP.SMALL.jpg hardwarehank So, you're going to a conference/meetup/nerdfest and you want to do something that sets you apart from normal people.  An LCD namebadge powered by an ATtiny2313 is a great way to do that.  This is a general purpose LCD display unit powered by a 9V battery and a simple voltage regulator circuit (the ...
By: hardwarehank

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Thu, 10 Mar 2011 00:31:16 PST
Creating a charlieplexed LED grid to run on ATTiny85 http://www.instructables.com/id/Creating-a-charlieplexed-LED-grid-to-run-on-ATTiny/
Creating a charlieplexed LED grid to run on ATTiny85 - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FFI/LEXL/GJQEG1N6/FFILEXLGJQEG1N6.SQUARE2.jpg http://www.instructables.com/files/deriv/FFI/LEXL/GJQEG1N6/FFILEXLGJQEG1N6.SQUARE.jpg http://www.instructables.com/files/deriv/FFI/LEXL/GJQEG1N6/FFILEXLGJQEG1N6.SMALL.jpg b2ben This instructable was inspired by my first AVR microcontroller project that I've been working on for some time now. I wanted to start learning more about the AVR microcontroller and see how much I could do with the minimum amount of hardware... no extra chips, simple components, etc... just my AVR a...
By: b2ben

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Tue, 8 Feb 2011 10:54:19 PST
VUSBTiny AVR SPI Programmer http://www.instructables.com/id/VUSBTiny-AVR-SPI-Programmer/
VUSBTiny AVR SPI Programmer - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FV9/ECHG/GGPF4AZ6/FV9ECHGGGPF4AZ6.SQUARE2.jpg http://www.instructables.com/files/deriv/FV9/ECHG/GGPF4AZ6/FV9ECHGGGPF4AZ6.SQUARE.jpg http://www.instructables.com/files/deriv/FV9/ECHG/GGPF4AZ6/FV9ECHGGGPF4AZ6.SMALL.jpg simpleavr after making a usbtiny isp programmer and using it for 6 months, i was looking at making another one for carrying around. i like the simplicy of the usbtiny isp design but would like to make it even smaller and take less parts. one thing in the original design that i want to change is to eliminate...
By: simpleavr

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Fri, 26 Nov 2010 16:13:54 PST
Make a breadboard adapter for your AVR microcontroller http://www.instructables.com/id/Make-a-breadboard-adapter-for-your-AVR-microcontro/
Make a breadboard adapter for your AVR microcontroller - More DIY How To Projects]]> http://cdn.instructables.com/F93/K6JX/GGK20QY8/F93K6JXGGK20QY8.SQUARE2.jpg http://cdn.instructables.com/F93/K6JX/GGK20QY8/F93K6JXGGK20QY8.SQUARE.jpg http://cdn.instructables.com/F93/K6JX/GGK20QY8/F93K6JXGGK20QY8.SMALL.jpg andyk75 If you like to play around with micro controllers you know this hustle: You want to test a part of a program and first you need to completely wire up the uC on the bread board. Not with these handy parts any more! These are complete programmable micro controllers that could be stuck to any solderl...
By: andyk75

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Fri, 19 Nov 2010 01:29:04 PST
How to fix dead atmega and attiny avr chips http://www.instructables.com/id/How-to-fix-dead-atmega-and-attiny-avr-chips/
How to fix dead atmega and attiny avr chips - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FL2/PMLX/GA1BSUAV/FL2PMLXGA1BSUAV.SQUARE2.jpg http://www.instructables.com/files/deriv/FL2/PMLX/GA1BSUAV/FL2PMLXGA1BSUAV.SQUARE.jpg http://www.instructables.com/files/deriv/FL2/PMLX/GA1BSUAV/FL2PMLXGA1BSUAV.SMALL.jpg manekinen Atmega fusebit doctor, as name says it, device for repairing dead Atmega and Attiny family AVRs by writing fabric fusebits. Most common mistakes or problems are a wrong clock source (CKSEL fusebits), disabled SPI programming (SPIEN fuse) or disabled reset pin (RSTDISBL fuse). This simple and cheap c...
By: manekinen

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Sun, 6 Jun 2010 08:25:07 PDT
Infrared Proximity Sensing Coffee Table Module & Color Changing Glowing Faucet http://www.instructables.com/id/Infrared-Proximity-Sensing-Coffee-Table-Module/
Infrared Proximity Sensing Coffee Table Module & Color Changing Glowing Faucet - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FLL/FK4R/G962OJVN/FLLFK4RG962OJVN.SQUARE2.jpg http://www.instructables.com/files/deriv/FLL/FK4R/G962OJVN/FLLFK4RG962OJVN.SQUARE.jpg http://www.instructables.com/files/deriv/FLL/FK4R/G962OJVN/FLLFK4RG962OJVN.SMALL.jpg grahmaustin This video can be found on youtube. http://www.youtube.com/watch?v=h5n0rw8wo14 Check out the other one, and some other of my videos This is merely an instructable to explain how this device operates. I hope everything is not too obfuscated. This prototype consists of three 8x8” modules. Eac...
By: grahmaustin

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Wed, 26 May 2010 18:42:21 PDT
How to use a 74HC595 Shift Register with a AVR ATtiny13 http://www.instructables.com/id/How-to-use-a-74HC595-Shift-Register-with-a-AVR-ATt/
How to use a 74HC595 Shift Register with a AVR ATtiny13 - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FT1/TAJK/G8LWT91S/FT1TAJKG8LWT91S.SQUARE2.jpg http://www.instructables.com/files/deriv/FT1/TAJK/G8LWT91S/FT1TAJKG8LWT91S.SQUARE.jpg http://www.instructables.com/files/deriv/FT1/TAJK/G8LWT91S/FT1TAJKG8LWT91S.SMALL.jpg roznerd If you have been playing with microcontrollers and electronics then you have likely seen LED dot matrix displays and other projects that use shift registers like 7-segment displays and more. This instructable goes over a quick intro to the 74HC595 8-Bit Serail to Parallel Shift Register with Latch a...
By: roznerd

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Sun, 2 May 2010 19:04:22 PDT
How to control a 16x2 LCD using an AVR ATtiny2313 http://www.instructables.com/id/How-to-control-a-16x2-LCD-using-an-AVR-ATtiny2313/
How to control a 16x2 LCD using an AVR ATtiny2313 - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F8O/XO8L/G5V2M1SL/F8OXO8LG5V2M1SL.SQUARE2.jpg http://www.instructables.com/files/deriv/F8O/XO8L/G5V2M1SL/F8OXO8LG5V2M1SL.SQUARE.jpg http://www.instructables.com/files/deriv/F8O/XO8L/G5V2M1SL/F8OXO8LG5V2M1SL.SMALL.jpg roznerd If you are just getting into microcontrollers there's alot to know as you have likely found out. There's alot of good online tutorials for the Atmel AVR's and chances are you have see a few of those by now. I recently got into microcontrollers and didn't know jack about it. I wanted to have some ear...
By: roznerd

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Fri, 19 Feb 2010 08:59:09 PST
Control Anything with one AVR pin http://www.instructables.com/id/Control-Lots-of-LEDs-with-one-AVR-pin/
Control Anything with one AVR pin - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FNR/DXFC/FWA9BRR8/FNRDXFCFWA9BRR8.SQUARE2.jpg http://www.instructables.com/files/deriv/FNR/DXFC/FWA9BRR8/FNRDXFCFWA9BRR8.SQUARE.jpg http://www.instructables.com/files/deriv/FNR/DXFC/FWA9BRR8/FNRDXFCFWA9BRR8.SMALL.jpg jufreese This instructable shows how to control a group of led's with one microprocessor output.The micro I will be using is an Atmel Attiny2313. Parts and Tools Parts:Attiny2313 (got 5 free samples from Atmel)20 pin socketResistors (any size will work, depending on your setup. I will explain later)5v re...
By: jufreese

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Tue, 23 Jun 2009 12:13:54 PDT
I2C Bus for ATtiny and ATmega http://www.instructables.com/id/I2C_Bus_for_ATtiny_and_ATmega/
I2C Bus for ATtiny and ATmega - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FDP/3JOX/FP8NLXL7/FDP3JOXFP8NLXL7.SQUARE2.jpg http://www.instructables.com/files/deriv/FDP/3JOX/FP8NLXL7/FDP3JOXFP8NLXL7.SQUARE.jpg http://www.instructables.com/files/deriv/FDP/3JOX/FP8NLXL7/FDP3JOXFP8NLXL7.SMALL.jpg doctek I love the Atmel AVR microcontrollers! Since building the Ghetto Development System described in this Instructable, I've had no end of fun experimenting with the AVR ATtiny2313 and the ATmega168 in particular. I even went so far as to write an Instructable on using switches as inputs, and extended t...
By: doctek

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Fri, 2 Jan 2009 11:51:35 PST
Micro controller programming: Making a set of traffic lights http://www.instructables.com/id/Micro-controller-programming%3a-Making-a-set-of-traf/
Micro controller programming: Making a set of traffic lights - More DIY How To Projects]]> http://cdn.instructables.com/FKV/31PM/F4HZY5RL/FKV31PMF4HZY5RL.SQUARE2.jpg http://cdn.instructables.com/FKV/31PM/F4HZY5RL/FKV31PMF4HZY5RL.SQUARE.jpg http://cdn.instructables.com/FKV/31PM/F4HZY5RL/FKV31PMF4HZY5RL.SMALL.jpg unknowndomain So you wana learn how to programme a micro controller?This tutorial has been designed as a next step, following the fantastic tutorial 'Ghetto Programming: Getting started with AVR microprocessor on the cheap.' by The Real Elliot link you should read this before progressing onto this next step.Today...
By: unknowndomain

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Wed, 25 Jul 2007 07:03:40 PDT
AVR mini board with additional boards http://www.instructables.com/id/AVR-mini-board-with-additional-boards/
AVR mini board with additional boards - More DIY How To Projects]]> http://cdn.instructables.com/FXM/83RN/F1U9XRN7/FXM83RNF1U9XRN7.SQUARE2.jpg http://cdn.instructables.com/FXM/83RN/F1U9XRN7/FXM83RNF1U9XRN7.SQUARE.jpg http://cdn.instructables.com/FXM/83RN/F1U9XRN7/FXM83RNF1U9XRN7.SMALL.jpg b0j3 Somewhat similar to PIC 12f675 mini protoboard, but extended and with additional boards. Using attiny2313. Scheme Let us first start with a scheme. The scheme is pretty obvious since it only connects attiny2313 with the pins and the only additional elements are resistors and capacitor for resetin...
By: b0j3

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Sat, 19 May 2007 15:14:33 PDT
Programmable LED http://www.instructables.com/id/Programmable-LED/
Programmable LED - More DIY How To Projects]]> http://cdn.instructables.com/FDK/TS0Z/FXEEYVZDE98/FDKTS0ZFXEEYVZDE98.SQUARE2.jpg http://cdn.instructables.com/FDK/TS0Z/FXEEYVZDE98/FDKTS0ZFXEEYVZDE98.SQUARE.jpg http://cdn.instructables.com/FDK/TS0Z/FXEEYVZDE98/FDKTS0ZFXEEYVZDE98.SMALL.jpg alex_weber Inspired by various LED Throwies, blinking LEDs and similar instructables I wanted to do my version of an LED controlled by a microcontroller.The idea is to make the LED blinking sequence reprogrammable. This reprogramming can be done with light and shadow, e.g. you could use your flashlight.This is...
By: alex_weber

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Thu, 8 Mar 2007 04:31:50 PST
How to drive a lot of LEDs from a few microcontroller pins. http://www.instructables.com/id/How-to-drive-a-lot-of-LEDs-from-a-few-microcontrol/
How to drive a lot of LEDs from a few microcontroller pins. - More DIY How To Projects]]> http://cdn.instructables.com/FDR/41GC/8RYEP27Y2FY/FDR41GC8RYEP27Y2FY.SQUARE2.jpg http://cdn.instructables.com/FDR/41GC/8RYEP27Y2FY/FDR41GC8RYEP27Y2FY.SQUARE.jpg http://cdn.instructables.com/FDR/41GC/8RYEP27Y2FY/FDR41GC8RYEP27Y2FY.SMALL.jpg westfw 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 8pin microcontroller like a PIC12Fxxx or an ATtiny11 can drive 20 LEDs onits five available output pins, and still have one pin left for some kind of i...
By: westfw

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Mon, 22 May 2006 04:02:35 PDT