Charlieplexing of discrete leds has been the topic of a few other instructables. The Charlieplexing LEDs- The theory and the How to drive a lot of LEDs from a few microcontroller pins comes to mind. They are both excellent and should be read by anyone that wants to gain a deeper knowledge of how charlieplexing […]
Charlieplexing 7 segment displays using Atmel Tiny26 microcontroller Read More »
Buggy is a programmable LED craft project using a homemade, single-sided, PCB board, and a programmable AVR Attiny44v microcontroller. Buggy has two bi-colored LED eyes and can sense visible and IR light and emit sounds using a piezo speaker. Not counting the board, there is about $8 USD in parts per bug. I designed this
Buggy – A Crafty Programmable LED Creature using Microcontroller Atmel Attiny44v Read More »
I wanted to make an LED menorah for a friend. In planning this I decided I wanted to keep the parts-count very low and use components I had on hand. I think I have achieved my goals and couldn’t be happier at the outcome of this project. Please visit my webpage for more on this
LED Hanukkah Menorah using Microcontroller ATtiny13 Read More »
Close Encounters of the Curiously Minty Kind. This Instructable will show you how to build an Altoids version of the ‘Close Encounters’ mothership, and how to interact with it. This may be vital training for that day when the Bright White Beam comes to suck you up into the unknown. It will also introduce you
How To Communicate With An Alien Artifact or . . . Read More »
If you’ve ever wanted to power your Arduino or AVR from a battery for development testing (batteries have different power delivery qualities than, say, transformed AC or even a regulated wall wart in DC) testing but were tired of going through batteries (Hey, I admit I’ve sucked batteries dry in hours because of a slipped-up
Power your Arduino/AVR with a Hand-Cranked Battery Read More »
These Android figures are cute, but they don’t actually do anything. Let’s change that. Have a look at the video: These are the steps to make an Android that reacts to sound, moves it’s head, sends out Morse Code messages and displays some cool light patterns. In the video the LEDs in the body are
Mechanized Android Figure using Microcontroller ATtiny44A Read More »
Yes, I know this has been done before, but I wanted to build my own, using as few parts as possible. I built this as a table top or wall mount model, but it can be scaled up to make a coffee table. I built it as a study for a more ambitious project, which
Yet Another Daft Punk Coffee Table (5×5 LED Matrix) Read More »
Lampduino is a computer-controlled free-standing floor lamp, comprised of an 8×8 RGB LED matrix. The lamp stands 45″ high and 18″ wide. Light emanates from both sides. It has various display modes, as well as an included editor for creating animations. The lamp is controlled via an application running on a PC host. The display
Lampduino – an 8×8 RGB Floor Lamp Read More »
This is a mutli-mode clock project based on attiny2313. it employs a 8×8 led matrix as display. with the limited resolution, this 12 hour clock shows time in 6 different modes. The circuit employs row and column multiplexing to drive the leds, one row at a time, this gives a 12.5% duty cycle when “sets”
ATTiny2313 Multi-mode LED Matrix Clock Read More »
This project displays the temperature on an LCD display with an resolution of 0.06degrees. DS1820 is used for sensing the temperature. It can measure temperature range from -55deg to +125deg. But i take care of only the possitive temperature. There are 3 switches to change the alarm temperature, the user can increment the Alarm temperature
DS1820 Temperature Controller using atmega8515 microcontroller Read More »
