Basic Stamp 2 NTSC Video Generation

[macdad-]

A surprising well video generation circuit built by me using a Basic Stamp 2. As the folks in the Parallax forums say it is impossible to generate a video signal with the BS2.

Here is a nice video generation using a Basic Stamp 2. It is fairly hard to generate NTSC Video signals and I have read on the Parallax forums that it is impossible to generate video signals with the BS2, I tried to prove them wrong and made a simple proof-of-concept circuit/program to demonstrate that by taking advantage of the Basic Stamp's single mindedness(It doesn't multitask), I used the PULSOUT command as a delay command in microseconds(See the Program attached).

[youtube=425,350]http://www.youtube.com/watch?v=NMjilHwIqIo[/youtube]

The BS2 program and schematic are on my website:

Here's the program:
http://sites.google.com/site/lonewolfscircuits/sitefiles/BS-Video.bs2

Here is the schematic:
http://sites.google.com/site/lonewolfscircuits/sitefiles/BSV-Schematic.bmp

Enjoy

[Alfa_Zulu]

nice,

also thanks heaps for an awesomely easy to understand explanation on how to make a video signal 

[macdad-]

Thanks

My explanation for video signals is only for a B&W signal but there are some easy tutorials on how to make a color signal:

http://www.rickard.gunee.com/projects/video/pic/howto.php

Of course the tutorial uses a PIC microcontroller instead of a BS2, but just use my attached BS2 program as a base for the video generation.

[Alfa_Zulu]

ok thanks