SX-Pong

After making the tetris game, it was very easy to make a Pong game. The game Pong was the world's first video game in the early 70’s; this is a modern version of it, made with a little bit less hardware than the original version. In my version, the video signal is generated in software. The video generating hardware is a 5-bit DA converter built with a few resistors. Usually the video signal is generated in ...

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SX-Tetris

The first game I made in color using SX-chips was Tetris. 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 SX Video Game S ...

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SX Game System

This page describes a SX28-based color video game system I made during year 2002. Now, beginning of 2007, almost five years after I made the first design I've updated the layout of the PCB and added a version of the PCB that has built-in gamepads and I also have made it possible to buy PCBs, preprogrammed chips, color carrier oscillators and of course complete kits from me in my web shop. Since all games us ...

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PIC-Tetris

Introduction 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 m ...

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Building the PIC16F84 based game system

This text describes how to build my PIC16F84 based game system, before you start you should read through the whole text one time. Note that many components are sensitive to too much heat and will get damaged if you heat them too much when soldering. The drawn placement images show components to mount in each step in black and the components mounted in previous steps in gray. When soldering the components on ...

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PIC Game System

This page describes a PIC16F84-based video game system I made and first published back in the beginning of 1998. Now, beginning of 2007, nine years later I've updated the layout of the PCB and also updated the source code to also be able to run on a PIC16F628A as Microchip is phasing out the 16F84 and it will soon not be able to be bought. The final new "feature" is that you now also can buy PCBs, preprogra ...

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Max the Spider – powered by LEGO and PIC microcontroller

So Max the spider visited us in the lab today, and wanted to get into the halloween spirit. "I'd like to drop down on people in the elevator," he smirked, in a way only a spider could. "I've got just the thing," I winked, and put a little something together. You're looking at a clear Lego motor (comes with its own gearbox), mounted on a Lego platform. The platform is not going to win any design awards, but ...

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Fun with Voltage Regulators

I’ve been spending a lot of time thinking about op amps and comparators lately. One of the common uses of an op amp is as a “unity gain” buffer, meaning that the output voltage is as close as possible to being the same as the input voltage. At a glance this might seem like a trivial thing, but it’s used to great advantage. For example, a resistive voltage divider can be used to derive some fraction of a lar ...

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Frankenbear Synthamajig using PIC16F877 microcontroller

Frankenbear Synthamajig Have you ever wanted a teddy bear that looks like Frankenstein and makes sounds like "bleep bleep bloooop de de bleep.... EHHHHHHHHHH...... dadadadadadadododododod bleep bleep bloop"? Look no farther, you have found it! Now you can perform the nights away with your new USB-Powered teddy bear instrument. Yay! bear1.MOV2 MB bear2.MOV1 MB Go get stuff. Go get stuff: 1 - Small white tedd ...

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Whac-a-Veggie using PIC18F4550 microcontroller

Whac-a-Veggie For this year’s Trunk ‘O’ Treat game I wanted to make a something fun and exciting for kids to play so I choose a Whac- a-Mole type game called Whac-a-Veggie using the Veggie Tales characters.   The Whac-a-Veggie game is played with a foam hammer in your hand and the veggie characters randomly popping-up quickly and you have to hit them on the head before they go back in there holes to sc ...

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