LED Ping Pong without microcontrollers

Is it possible to make a LED matrix (mini. 10*10) Ping Pong game without using microcontrollers; making the circuit by just using basic IC’s. or 4xxx or 7xxx series of IC’s. (All logic gates, flip flops, counters, 7-segment display drivers).

 

I suppose one could. Microcontrollers would certainly require far fewer components.

Using a pair of LM3914 dot-bar LED drivers would make running the dot around easier. The output of one of the drivers would have to be inverted to source rather than sink current, though.

 

Hard to do actions like changing velocity and direction, though. Assuming paddles as another set of 10 leds, detecting collisions sound like a challenge.

 

Thank you Sir.

 

In principle yes, but practically speaking it's probably too difficult using the discrete components you mention. However, you should be able to implement in a modern FPGA, which is a programmable logic device.

 

can tell in detail?

 

help us in this

 

The annoying thing about most "help me I appear to be on the wrong course" requests is that the people asking for help don't bring anything to the table.

I would hope that any student on an electronics course has some basic understanding of electronic principles, even a basic concept would be nice otherwise it's a one-way street.

 

Electronics students today don't have a clue about electronics.
Their teachers also don't have a clue about electronics.
The teachers don't teach anything.

 

I'm going to throw my vote in with those who recommend the use of a microcontroller in place of the discrete logic.

To attempt to address the complexity of such a circuit using discrete logic would force so many design compromises that the end result would surely be a disappointment.

hgmjr

 

The aim is to design the game of Ping-Pong on a LED matrix display (with a minimum dimension of 10 × 10 LED). The game is between the two players who’s rackets are placed in the columns at the opposite ends and only confined to move along the column. The ball (symbolized by a single growing LED) should move in the arena between the two players. The player wins the games if only he/she makes the other player miss the ball. The ball is only allowed to hit the racket and the side walls. The collision between the ball and the racket should be implemented in a more realistic fashion considering their motion.

 

Incidentally, Windell Oskay over at Evil Mad (www.evilmadscience.com) just produced a cool handheld LED game platform. It's on an Atmel ATMega platform for which there is a lot of freeware help on both the hardware and software side, as is much of his stuff. (Google : Arduino). So if the original poster has any interest in such stuff, that may be a better place to start than a drawer full of transistors. I know at the Maker Faire there was a demo of a Pong game on an analog oscilloscope, but I believe it used that same Arduino platform.

Anyway. Happy building.

Joe

 

Thank you Joe,
but as i mentioned I have to make the project without using any programable device. So, that makes using a modern FPGA a taboo. I could probably use a LED Driver.
The biggest challenge is making the ball bounce back whwn it hits the racket.
I am still working on the model with my team members. This site has helped me so much. I extend my gratitude to all the members connected to the site and wish all of you a progressive new year.

 

I am not surprised that many kids are interested. it is not a school project but one of the competition projects at the IIT Kanpur (India). There is very less material available online.

 

I think you may be able to employ several LM3915 devices (one for each column) to implement the ping-pong function. You will need a couple of ramp generators to provide the X-Y position input and a coupled of comparators to determine when the paddle and the moving LED collide.

hgmjr

 

It seemed a bit more straightforward than getting tangled up with oddles of gates and digital magnitude comparators.

hgmjr