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Soundcard Joystick Port problem solver - Typical PC soundcards (for example Sound Blaster family) has added MIDI interface to the joystick connector by using pin 12 for MIDI output and pin 15 for MIDI input. This causes sometimes problems with some joysticks and adapters which work pefectly on standard joystick port. The following conversion circuit enables standard joystick Y-cables __ Designed by Tomi Engdahl
Space invaders game using PIC microController - The circuit diagram is shown to the right. You can get a larger version or a PostScript version if you prefer. The design is based around a Microchip PIC16F628A microcontroller. At the time of writing, this device is available for less than one pound from (among others) Crownhill Associates. All the work, including colour video and synchronisation signal generation, is done in the microcontroller, and so there are no other active components. Purists who contend that the LED is an active component may replace it with a light bulb. __ Designed by mail at quinapalus dot com
Spin the Dice - You cannot beat toys for technology. They always offer the latest in design. They were the first to offer speech, LCD screens and movement, all at an unbelievably low price. Technology has ridden on the back of toy manufacture. Toys have led the way to reducing the costs of manufacture and now we see things like gigabyte chips in hand-held devices for less than a day's wage! __ Designed by Collin Mitchell
Steady Hand Game - a controller to use with a steady hand game gives you up to 10 chances __ Contact: P. Townshend EduTek Ltd
Survival Game - jump up the ladder withiout falling off, a game of skill used in gcse project __ Contact: P. Townshend EduTek Ltd
SX28-based color video game systE - M - 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 __ Designed by Rickard Gunee
The Flashing Heart - The Circuit Diagram is shown in Figure 1. It consists of a 4047 low-power monostable/astable multivibrator, IC1, used in the astable mode to provide the timing pulses to control the flash rate of the LEDs. To accomplish the astable mode, pins 4, 5, 6, and 14 are connected to +12VDC and pins 7, 8, 9, and 12 are connected to ground __
The Millipede - Me and a friend are both trying to build a millipede. Because of obvious reasons, the millipede is NOT going to have 1000 feet!!! Instead, it's going to have 16 pager motors as feet. It will also have 3 Micro-Motors to ''bend'' towards light, and a backup sensor __ Designed by Juan A Cubillo
The Wire Between Multiio Card & Joystick Connector - Some PC multi-IO cards have a 16 pin header in the circuit board which is wired to the joystick connector (fitter to other slot place) using flatcable. The wiring is straight one-to-one connection but, due to the different numbering scheme of the gameport connector vs the 16-way header, the pin numbers don't necessarily match (pin 16 in header is ocource lef not connected because joystick connector has only 15 pins) (Design Idea 07/03) __ Designed by Tomi Engdahl
Tic-Tac-Toe Game using PIC16f628 - This project is not to introduce Tic Tac Toe. Everyone knows this game. It's to introduce two features. Bi-coloured LEDs, microcontrollers and the skill of writing an ALGORITHM. You can use the project to learn the skills of creating the Tic Tac Toe program or create animations on the 3x3 display. Tic Tac Toe is one of the simplest yet most-challenging games to be invented. With just a choice of nine locations, two players can pit their wits and very quickly work out who is superior. __ Designed by Collin Mitchell
Time Pilot '84 Arcade Game - Schematic only, no circuit description included. __ Contact: jrokweb @ san.rr.com
TRIAC based lamp dimmer - Schematic only, no circuit description __ Contact: IQ Technologies
Two player quiz master game - No circuit description, schematic only___ CdS Electronic
Use PC Joystick Port to measure temperature & light levels - PC joystick port can be used very easily for simple measurement of light and temperature values. All you need for light measurements is to connect a LDR resistor between +5V and potentiometer input. For temperature measurements substitute the LDR. __ Designed by Tomi Engdahl
Using the Joystick Port as General Purpose Input - The joystick button inputs can be used as general purpose button or switch inputs, and can also be driven by logic level signals or by open collector or open drain logic outputs. If used with a signal direct from a mechanical contact (e. g. a switch, microswitch, contact, or pushbutton) , remember that the joystick port does not perform hardware debouncing, so this must be provided by external hardware or provided by software __ Designed by Tomi Engdahl
VCR Ping Pong Game - Here is a fascinating and nostalgic project that kept me up many, many nights last summer (creating it, not playing the game!). I had long thought it would be exciting to try to generate video from a PIC, and with built-in A/D converters available for the paddles, the game of Pong seemed an obvious application to prove the concept. The most amazing thing about this project is the small number of parts. My boss joked that it involves 17 cents worth of parts __ Designed by David B. Thomas
Video Ping Pong Game - Schematic only, no circuit description __ Designed by dt @ dt.prohosting.com
Virtual Game System-A game console with a mechanically scanned display - If you move a bright light fast by the eyes, it will leave a line behind because the human brain and eyes are slow to interpret fast changes in light intensity, leaving an afterglow. If a row of LED’s is moved sideways while the LED’s intensity is changed, an image will shortly visualize in the air where the LED’s are moved __ Designed by Rickard Gunee
Visubat: Battery Meter for Pinball Machines - Well here it is as promiseda battery tester for giving visual indication of the battery pack in your pinball machine. Luckily I had a spare day forced on me by car trouble so I've managed to design and test the circuitry earlier than planned (fixed the car too!) and I've still got time to write this article, and maybe, down a bottle of my favourite wine! __ Designed by David Gersic
Wire between Multiio Card & Joystick Connector - Some PC multi-IO cards have a 16 pin header in the circuit board which is wired to the joystick connector (fitter to other slot place) using flatcable. The wiring is straight one-to-one connection but, due to the different numbering scheme of the gameport connector vs the 16-way header, the pin numbers don't necessarily match (pin 16 in header is ocource lef not connected because joystick connector has only 15 pins) __ Designed by Tomi Engdahl
Xevious Arcade Game - Schematic only, no circuit description included. __ Contact: jrokweb @ san.rr.com
YoYo enhancement Device - The original yoyo was equiped with 2 LEDs that lit up whendevice was spinning. I decided to add a micro to give it some extra pazazz. The trick here is to makeunit work without a power switch. The mercury switch is positioned so that it supplies power whenunit is spinning. After about 20 seconds, PIC shuts down in sleep modes, __ Designed by Luhan Monat-Mesa Arizona
Zinc Negative Resistance Oscillator - Anyone can make an active semiconductor device at home by heating galvanized sheet metal. With it, simple rf and audio oscillators can be built. Amplifiers can also be built. With a carbon microphone or transformer connected, the rf oscillator can even transmit audio to a nearby am radio. Really!! I'm not kidding. __ Designed by Nyle Steiner K7NS |
