I just want to display crisp text onto the screen. In order to sync with the video data, is the arduino simply fast enough? I don't need blazing graphics, or even fast scrolling.Clearly you don't get a full res display from an arduino with 160kbits total of memory. For video memory, if I want to display a color image on an 800圆00 resolution, are my calculations correct that I would need 3 x 8 bits of data for each pixel? That's a ridiculous amount, about 12mb.

The example cited above drives 0/1 on all three pins simultaneously, so it's just black/white.

Or you can get some limited colors by driving the VGA pins with digital values. Can these be accurately output by the arduino's PWM?

I believe the VGA RGB values are analog values.

You wont get full VGA resolution, of course (but the above is WAY impressive!) This is raw hand-crafted AVR assembly language rather than arduino code, but it's a good demonstration of what sort of thing is possible.) (16MHz ATmega16 driving 20 character*20 line display, using no additional 'active' hardware. I just want to display crisp text onto the screen.Īny ideas on how to proceed? And please keep in mind, I'm inexperienced, so I may have misconceptions of what is required (even on the apparently most basic levels ), so if I'm incorrect in an assumption, please tell me (and hopefully offer a tid-bit of wisdom). In order to sync with the video data, is the arduino simply fast enough? I don't need blazing graphics, or even fast scrolling. Can these be accurately output by the arduino's PWM?įor video memory, if I want to display a color image on an 800圆00 resolution, are my calculations correct that I would need 3 x 8 bits of data for each pixel? That's a ridiculous amount, about 12mb. I believe the VGA RGB values are analog values. I don't know if this means it can't be done or simply no one has bothered to try. I have been looking everywhere, but I can not find anyone who has successfully interfaced the arduino with a standard VGA monitor. I'm having some trouble though making the jump from an all software background to a now hardware environment. I'm incredibly new to electronics in general, but am a pretty snappy coder.

Cga to vga converter circuit diagram