I saw a website about this a few years ago and it sounded too cool
to pass up. And it was. Although I since bought a PC based Oscope
that is more powerful and practical, the GBDSO is nonetheless useful
and if nothing else has an extremely high coolness factor.
If I can't do anything else with it, I can show it at my kids'
science fairs and get accolades.
This hack by S.G. Willis is a brilliant piece of work and speaks
volumes about the art and utility of hacking
It is a 2 channel scope and works pretty good. The probe connectors
are a bit rickety and I'm constantly afraid I'll break them off
or mess up the board similarly. Using the standard GB button interface
to get what you need is a bit funny, but he did a great job with
the firmware making it menu based.
The only thing funny about mine is some ghosting of the image that
happens after a while in operation. A reset clears it up, but it
always comes back. Still, a really neat project.