PONG was played for the very first time on a osciloscope…

that pic has a reference voltage module, that is a 16 step resistor ladder, he uses it.
i tried his code and i couldn’t see anything but lines, maybe because i was using a digital oscilloscope, i don’t know.

Thats really interesting , i guess the only other way to do it would be to use a dac ? .

Ive seen some great clock software running off pics as well.

any micro with two dac like (voltage ladder) outputs can do this. if not, then two dacs will do the job as well.

Since there is no blanking, I am guessing you have to snap the ray to the next location quickly, and draw slowly the vector you want to be visible.

History note: not only was the first pong played on an o-scope, but the first asteroids arcade was a televesion modified to act like an o-scope, and it ran on an analog computer.

Neat project. I’ve been working a scope clock project myself. I’m not using a oscilloscope but instead I built deflection amplifiers based on another scope clock design. I wrote all of the firmware in assembly for an atmega168 chip. I also added a real time clock to have battery backup and a Maxim ds32khz temperature compensated crystal for accurate timekeeping. I’m still adding more code but for right now it only displays the time. My progress can be seen here: http://www.derivedlogic.com/Scope%20Clock/scopeclock.html

http://www.youtube.com/watch?v=s1eNjUgaB-g scopes can display pretty neat things, this one is done using souncards stereo output as X & Y input for scope.

btw, just when you think you’ve seen everything on oscope graphic projects, there’s vector pron…

http://sensi.org/~svo/pr0nscope/

Here’s one I did a few years ago. Let’s see if anyone figures that one out :-)

Hmm, it’s possible I guess glen, 2 mirrors, connect each on one side to a ‘hinge’ (the 2 tilted compared to eachother to get x and y) and the other end of the mirror to a speakercoil so it moves in 2 dimension only due to the hinge and then point a laser and use some clever software like used for the oscilloscope experiment to drive the speakers.
Speakers and mirrors and not servos because then you can do it cheap and have it move fast, would be too expensive to get highspeed stepper motors or high speed very precise servos, and then you might as well buy a ready-made laseraim system.

I bet someone tried it already long ago though.