Idea Build a cheap and simple full software controlled step-up (boost) converter to drive a LED string of 10 LEDs. LEDs are used as string to light up a acrylic engraved plate placed in a holder (also made out 5 layers of lasered black acrylic glas). Step up is from 5V to about 30V, current […]
LED step-up converter with ATtiny85 Read More »
Introduction: A good while back, I made the 1-key-keyboard project. Ever since it has always been in the back of my mind that the ATTiny microcontroller, which I used in this project, had still 3 IO ports which were unused. Only recently I’ve found the time to expand my old project in the most obvious
4-key keyboard using ATtiny85 Read More »
This LED candle is built to mimic the look of a traditional candle without the dangers associated with an open flame. It uses high brightness LED and is controlled by ATtiny85. It could be useful as movie props where you cannot afford to have a candle go out during a take or in your home
AVR LED Candle using ATtiny85 microcontroller Read More »
Have you ever seen a business card with a computer chip embedded on it? This one does. It has an ATtiny85 microcontroller chip that stores all your personal details. You plug it into an USB port of your computer, and find the details about the person opened into a text editor. The firmware uses V-USB
USB business card with a computer chip board using ATtiny85 microcontroller Read More »
Hey guys! This is an Instructable for making your own ATtiny85/45 5 LED POV (Persistence Of Vision) display! This is my second Instructable, also for the Elemental LED contest, so drop a comment and vote it up! The total parts cost for this POV display is under $10! (If you get the parts from a
$10 ATtiny85/45 POV display!! (works really well) Read More »
I’ve been meaning to make something cool for my dorm room this coming semester and decided that some custom closet lights would look great. In this Instructable, I’ll show you how to make some nice-looking LED lights that will turn on automatically using a hall effect sensor and a magnet. Edit: I’ve noticed a lot
Door Activated LED Lighting using Hall Effect Sensors using Attiny85 microcontroller Read More »
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 and my code so
Creating a charlieplexed LED grid to run on ATTiny85 Read More »
Learn how to turn your Arduino into an AVR In System Programmer. This will allow you to burn bootloaders onto new chips or program AVRs without a bootloader. Step 1: Materials To begin you will need: * Arduino (I will be using the Uno) * AVR Microcontroller (This tutorial will cover the ATtiny85 & ATmega644)
Turn Your Arduino Into an ISP Read More »
The Atmel ATTiny85 chip is an 8-pin MCU that is totally awesome. If you’ve been programming with the bigger boys (the ATMega series), these are a nice adventure – you’re rather limited in the number of output pins, but a creative design gives us a lot of flexibility in a very small package. You’ve seen
Apple-style LED pulsing using a $1.30 MCU using ATTiny85 microcontroller Read More »
When I ran across the Jar of Fireflies Instructable sometime this past summer, I knew I had to build it. Full credit to Keso for an excellent set of instructions! I wouldn’t have gotten to the point of developing the firefly behavior without such a solid base for building the hardware, as well as firmware to start it
New Jar of Fireflies Read More »
