5 ms·
Oscilloscope clock
- frankus 14y agoMy lab partner and I did something like this in our Microprocessors course (Hi Dan!). We wanted to do it with a laser and galvanometers but ended only having time for hooking it up to an oscilloscope. I still remember mapping out all 36 letters/numbers as XY coordinates. You can actually output decent vector graphics signals from a sound card if you jump through some hoops to be able to output a reasonable DC signal.
- duskwuff 14y agoHere's an excellent example of what you can get by jumping through a few more hoops: http://www.pouet.net/prod.php?which=31592 http://www.pouet.net/prod.php?which=31592
- nevster 14y agoWow - I've seen a lot of demos in my day but that is just all kinds of awesome
- nrp 14y agoYou can also output vector graphics from MAME, allowing you to play old monochrome vector games without rasterization. This is hacking VGA rather than audio output: http://emergent.unpythonic.net/software/01115603825 http://emergent.unpythonic.net/software/01115603825
- ChuckMcM 14y agoI did something similar with some galvos, using an oscilloscope with a 'z' input (most Tek scopes have this) lets you modulate the beam intensity. Somewhere I've got a copy of the Scelbi-Byte Primer which has an article from 1979 called "Beer Budget Graphics" where an R2R ladder is used to create a point display on an oscilloscope. Its tougher when you're using a 4Mhz processor :-) EDIT: Update apparently its from the November '76 issue of BYTE.