What do you do with an old phone, a microcontroller and lots of time? You hook the old phone’s LCD screen to the computer USB of course! In this project we’re going to communicate with a Nokia 3310 LCD display over USB! How are we going to do that? We’re going to connect the LCD […]
Connecting Nokia 3310 LCD to USB using AVR Read More »
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 same 7805
AVR LCD Namebadge Using ATtiny2313 Read More »
There has been a lot of interest in muscle powered electronic devices, due in large part to the success of Perpetual Torch Perpetual Torch, also known as battery-less LED torch. The battery-less torch consists of a voltage generator to power the LEDs, an electronic circuit to condition and store the voltage produced by the voltage
Faraday For Fun: An Electronic Batteryless Dice using Microcontroller ATTiny13 Read More »
The Swiss AVR Knife bundles a number of AVR programming projects together in a single convenient Altoids Gum Tin. Because of the flexibility afforded by microcontroller programming, it also provides a starting point for any number of projects based on LEDs and sound output. The SAK can contain as many programs as the 8K of
Swiss AVR Knife using Microcontroller ATtiny84 Read More »
Ever wanted to be “logged in” to your AVR microcontroller? Ever thought it would be cool to “cat” a register to see its contents? Have you always wanted a way to power up and power down individual peripheral sub-systems of your AVR or Arduino in *real time* ? Me, too, so I wrote the AVR
AVRSH: A Command Interpreter Shell for Arduino/AVR Read More »
Introduction Ever fancied building your own camera controller? IMPORTANT NOTE: Capacitors for the MAX619 are 470n or 0.47u. The schematic is correct, but the component list was wrong – updated. This is an entry into the Digital Days competition so if you find it useful, please rate/vote/comment favourably! If you reallly like it and are a stumbler,
If you are into geeking it out with projects of the electronical kind, then you have likely wanted to create a dot matrix display or a POV. To do this you will need to have a font file or table to read the characters from. There are alot of ways to get this file. The
LED Scolling Dot Matrix Font & Graphics Generator 5×8 5×7 8×8 Read More »
I recently started programming AVR chips, namely the ATTiny85. They can be programmed using C, compilers are readily available in Ubuntu, and you can do a LOT with them – just search for avr on this site! Anyway, I was having some trouble with my project today – the LED wouldn’t flash! I couldn’t figure
Debugging AVR code in Linux with simavr using Microcontroller ATTiny85 Read More »
Hack a wireless home automation system to be USB controlled using two AVR microcontrollers! Check out the video! The system is really more responsive, but the browser on my phone is slow. Skills ans tools There are two ways of hacking an RF remote to be controlled by a computer or a microcontroller. The lame
USB controlled home automation hack using Microcontroller ATmega8 Read More »
Nokia manufactures a wide variety of cell phones and many of their cheaper phones contain simple LCD’s which may be used in microcontroller projects. There is one particular LCD model that is used in a wide variety of their phones and is often referred to as simply a “Nokia LCD“, or “Nokia 6100 LCD”. I
How To Use a Nokia Color LCD using an AVR Read More »
