Rickard’s PIC-Tetris
I have made the game Tetris using a PIC16F84 running @ 12MHz. Tetris is an old Russian computer game where you should try to fit in block into a play-field, quite simple but really fun. All blocks are built from four bricks (the name Tetris is derived from the ancient greek word for four: “tetra”), there are seven combinations of the four bricks as seen here to the left. This version is using my PIC Game System as platform, generating a video signal in software. The only hardware used for the video generation is two resistors forming a 2-bit DA converter. Link.
One of the most used things in homes, business and small offices (other than the internet) is routers. Although routers are inexpensive, you can build and configure a router for free, if you have the necessary parts. Lets start off with the requirements needed for this project: i386, or better motherboard + processor, 2 PCI or ISA NICS, Floppy Drive, Harddrive (optional), 8 MB of RAM, Freesco floppy disk 
There are two categories of the laser effect. One is Beam Effects show the laser beam that progressing in the air to the audience, the other is Screen Effects show the laser graphics on the screen that drawn in moving a laser spot on the screen. The first one is used better than second. The beam effect is very exciting, so that many Laser Light Shows are also being given. The laser machines working in the laser light show are called Laser Projector. Here’s how to make one… ![Pressenter2[1]](http://cdn.makezine.com/make/blogs/blog.makezine.com/pressenter2%5B1%5D.jpg)
I really like the scroll bars. Joe McKay’s Progress Bar is moved by a stepper motor which is connected to the computer. The computer screen displays a message which changes as the bar gets closer to completion. Press Enter to Exit has two mesh screens inside a box, one that’s shaking and one that’s not. This shaking makes the letters shimmer with a moire brilliance that mimics a computer screen. The text comes from the artists’s local deli’s ATM machine. See also the Scrollbars by Jan Robert Leegte. The installation isolates elements of the Windows interface, which are in turn projected onto various structures; previously internet-based, the scrollbars moved to physical installations through a desire to develop a more meditative relationship between the audience and the work. 
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Clever, and has a step by step. my boss decided that we needed to do something fun and creative in one of our conference rooms – the one we use for brainstorming and internal meetings – and together we came up with the idea of filling the wall with post-it notes in a multicolored mosaic of (and i’m not sure whose idea this was) Elvis.