The idea of the project is to use two mirrors, two motors to move the mirrors, a laser pointer, and a PIC microcontroller with serial input to receive the image from the host computer and control the mirrors and laser. The image will be conditioned in and transferred by Processing. The result will be an image that looks a bit like a big POV or a red and black old style computer display. The project its still a work in progress because only control of the x axes was realized, next the author will add control on the y axes and the project should be finished. Laser Display POV:[Link]
This is a physical hit counter.It is used to count page-hits on the website instead of using software only.The counter will be connected to rs232 port through a few of electronic components that performs as a counter driver and power supply circuit. The circuit is based on MAX7219 and 7-segment common cathode LED display x 8 digits. MAX7219 is a 8-Digit LED Display Drivers with serial interface which makes it ideal for this project and really easy to implement.
I will sure build one of these for myself, with some minor tweaks, it will look great on my desk . I will write about it in a following article so Subscribe by RSS or email to get the news from this blog.
This project presents us a modular matrix led display based on the ATmega48 micro-controller. The main feature of this modular matrix display is that you can reconfigure it to form an arbitrary lenght LED display. Due to the simplicity of the design, it is easy to extend the communications protocol to more than one display chain to increase the height of the display. In this project, both single and double row examples are shown.
If your an Electronics geek, you probably want to tweak electronics related stuff in every place you spend time. For example in your car, you probably are not happy with the information displayed on the dashboard. Maybe you want to know fuel consumption at a given time, or the air conditioning temperature or you want a unit that can control all this. Here is a nice project for this: t uses AVR microcontroller that is equipped with various sensors and LCD display which shows quite a bunch of info like momentary fuel consumption, momentary speed, journey time, passed distance and many average indicators. First working project version can be found here. Probably there will be another with more improvements.
Nick Johnson has this very interesting project on he’s page. He talk about allaways having trouble getting up for work and how all commercial alarm clocks are too easy to turn off. My personal opinion that is true, though I don’t have a big problem on waking up. And if i feel very tired and i have a big day coming up my solution is to just place the Alarm clock far from the bed, so i have to get up and walk a few steps to turn it off, this method never fails for me. But Nicks’s project is also very fun to build and i have to say very original too, i never seen something like this. The design is powered by a PIC16 microcontroller, which manages the user interface and keeps time. It displays the current time and the arithmetic challenge via an lcd. Nick offers the design as free and open source. If you would like more info visits project page using the links bellow.
. I will write about it in a following article so 