There are numerous posts on Instructables about how to make a flickering LED candle. This is my version. The project requires the following components: 1. Tiny45 AVR Microcontroller (Tiny13 would also do) 2. 1W Warm white (or yellow) LED 3. Perspex tube 4. AA or AAA size batteries- 4 (alkaline or NiMH) 5. PCB stock […]
YAFLC (Yet Another Flickering LED Candle) using Tiny45 microcontroller Read More »
Do you have a pile of AA rechargeable batteries in your drawer? Some are old, some are new, but which sets would you bring with your camera on your next trip, and which ones are past their useful life? I like using rechargeable batteries, but I’m certain that some of them are not living up
Rechargeable Battery Capacity Tester using ATMega168 microcontroller Read More »
So, you want to program a bootloaded AVR. Or possibly, you have an Arduino Lilypad and no way to program it. There are a few solutions available to you: You could buy a USB to FTDI adapter (available at Adafruit, Sparkfun, etc), you could buy a simple FTDI cable, or you could build something. I
Arduino FTDI Header using ATmega8 microcontroller Read More »
I’m an Electrical Engineering major and each year my college’s branch of IEEE competes in a student hardware competition. Last year’s competition was inspired by the natural disasters in Haiti and Chile (the competition was held one week after the earthquake in Japan). This was a very large project that was tackled by a group
Autonomus Wall Following Obstacle Avoiding Arduino Rescue Bot Read More »
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 and how to interface it to an
How to use a 74HC595 Shift Register with a using AVR ATtiny13 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 »
Do you currently have an Arduino and want to make it smaller for cheap? The Quasi-duino is for you (Italian for almost-duino). This makes a functional “almost” Arduino, in a very small form factor using the narcoleptic library for pico-power operations on a pico-space breadboard. This ‘ible will use Arduino 1.0. All of your Arduino
The $9 Quasi-duino (Almost-duino) using ATmega328 microcontroll Read More »
Soldering SMD components isn’t as hard as you might think. In fact it’s easy. If you follow this instructables you’ll soon see just what great results you can obtain at home using just a hotplate. It’s not just being able to make small circuit boards that makes SMT soldering so good it’s also a nicer
Soldering an SMT MOSFET Driver with a hotplate using microcontroller Read More »
Hey Arduino fans! Here is an ‘ible for making a device that turns TVs on when you want them off, and off then you want them on! If you hide it in something inconspicuous, it would make a great April Fools joke or gag gift. And the best part is that the total parts cost
$1.50 Arduino TV Annoyer!! (Turns TVs on when you want them off) using microcontroller Read More »
OH NO!!! You’ve screwed up and now the Arduino bootloader on your ‘duino is gone! What are you going to do? Go spend money for a programmer??? Well don’t! I’ve got a solution that only requires your ‘duino and some wires! So its not the end of the world, it is just a minor glitch
Programming Arduino Bootloader without Programmer using ATmega168 microcontroller Read More »
