On this page you will find a scrolling LED sign based on the ATtiny2313 AVR microcontroller, which you can build yourself (when finished) Other names for this device can be: Moving message sign, Message crawler, Scrolling message, message display, etc. The idea is to let a text scroll over the LED dot-matrix displays. A dot-matrix […]
Dotmatrix using ATtiny2313 microcontroller Read More »
When I’m fiddling about with electronics I want to be comfortable about it. Therefore I built some things to make by breadboarding life a little simpler. One example is the Network Breadboard Interface. Another one is this little project. These little pcb’s can be put directly into a breadboard and they have the same pinout
Easy Breadboarding using ATMega microcontroller Read More »
This article describes the design of a Text on TV project. It takes serial data and displays text on a TV screen. The hardware part of this project is pretty simple. It uses an Atmega8 microcontroller that runs with a 16 MHz crystal. The article provides the details on PAL and NTSC timing signals, as
Monochrome Composite Video using Atmega8 Read More »
I usually drink a lot of tea, and sometimes the tea tastes a lot better than average, which means that most times I make tea I fail at least partially. The taste of the tea depends on a lot of variables: The make of the tea. I buy my tea at Simon Levelt and they
Tea Timer using ATTiny2313 microcontroller Read More »
At the moment I do not have a kitchen timer. Not because I do not want one, (they’re cheap enough to buy) but because it seems impossible to buy a kitchen timer with a decent user interface. That means I have to build my own, which I just the kind of stuff I like. The
Kitchen Timer using ATTiny2313 microcontroller Read More »
This project uses Atmega168 microcontroller to compute the power usage at home and logs it to an SD card. It has a graphical LCD display too that shows the power usage as a strip chart. Besides, the voltage and current waveforms can also be displayed on the LCD. The current is measured using a pair
Power usage monitor using Atmel AVR using Atmega168 microcontroller Read More »
This morning (2009-12-31) I built my 4th AVR programmer. USBasp. I built this one because I wasn’t completely happy with my 3rd programmer and because I want to play with a software USB stack. I do know that it works (I just reprogrammed 2 old projects just to try it out. Programming seems to be
Programmer UsbAsp using AVR microcontroller Read More »
The programmer I use is built from a kit I bought at Tuxgraphics. There are several reasons I bought this kit. It is open source, works with avrdude. It connects to USB. It is a lot faster then my old programmer (Programs an ATMEGA8 in about 5 seconds). It is cheap. I bought the kit
Programmer using ATMEGA8 microcontroller Read More »
Beamer Control: Schematic Source code I made this project for Henk. He has a beamer for watching movies and a motor controlled screen. The purpose of this project is very simple. If he turns his beamer on, the screen must to down. And if the beamer turns of, the screen must go up again. This
Beamer Control using attiny2313 microcontroller Read More »
Door Opener: Schematic Source code I made this little project for Hans, yet another brother of mine. (I have 5 brothers.) He had a garage door to control and bought a little RF transmitter and receiver to control his door. Leo made a nice cabinet with relays to control the 400V 800VA motor. They turned
Door Opener using ATTiny2313 microcontroller Read More »
