For a long time I had a layout for this circuit, but could never build it, because the layout was to small to be made by tonertransfer. So it was the first layout I made with my new exposure unit. It’s quite small, so it fits under the LEDMatrix itself. Therefore only SMD parts are […]
8×8 Bicolor LED Matrix using MAX6964 Read More »
I am presenting one application with the Nokia 3310 LCD: Designing a thermometer using DS1621 temperature sensor IC. DS1621 is 8-pin sensor from Maxim, with temp range of -55 to +125 degree C, which can be interfaced with microcontroller over two-wire serial i2c bus. It has operating voltage range from 2.7 to 5.5v. I’m operating
Thermometer using DS1621 and Nokia 3310 LCD interfaced with ATmega8 Read More »
Due to university and work it has been a while since the last post. But I just completed a little project that’s worth posting. Several old 27C256 EPROMS were lying around unused. So I thought about a purpose for them. As I also had some 8×8 LED matrices, a little animated display came to mind.
EPROM Display using ULN2308A microcontroller Read More »
Another update on the CNC. The interfaceboards are etched, soldered and tested. IO / Control Boards Step- and directionsignals are generated by an ATmega32 which is controlled over RS232. This is only for testing purpose. In the final version a PC will control the movement. For more Detail: CNC Update 2 Using atmega32 microcontroller
CNC Update 2 Using atmega32 microcontroller Read More »
And now for something completely different: A little robotics project for the weekend. The described robot can be build entirely from model making supplies and materials from the hardware store. Also only very few tools are needed. A metal saw, a drill press, a vice and optionally a tap will suffice. And here you can
Delta Robot using atmega32 micrcontroller Read More »
Introduction: (don’t skip to read the note below) I recently purchased few AVR microcontrollers. I don’t know much about AVR since I am using it for first time. Any way, I have some experience on working with PIC and MSP430. To program AVR using USB, I came to know that USBASP is the best and
My own AVR ISP programmer using PIC16f877a and python! Read More »
For those who are trying to make AVR kit at home, an AVR programmer which can be simple to make will be really useful, as it’ll avoid buying the programmer!! Here I’m giving a few webpage links on how to make a programmers yourself. – Here is a simple AVR serial programmer, works with PC
DIY AVR Programmers Read More »
Introduction: This is my first AVR based hobby project and the most successful one compared to my all previous stuff. I am 100% satisfied with this work. Few months ago, I tried to make a wav player using a PIC16F877A. It worked anyway, but the audio quality was not so good for higher sampling rate
TV remote controller 160KHz High Quality Stereo MMC WAV player using ATMEGA32 Read More »
Introduction: Switching multiple tasks on a same CPU is the one of the major function of an operating system. What I did now is a time sharing multitasking (time multiplexing) on an AVR. Here an atmega32 is configured to use Round-Robin Multitasking. Round-Robin allows quasi-parallel execution of several tasks. Tasks are not really executed concurrently
Multitasking in AVR (A demo to run 7 tasks on an atmega32) Read More »
