knutson@ut-ngp.ARPA (03/20/84)
Any electronic gurus out there? I would like to be able to rig up a lightpen or mouse for my Z100. I know there are some commercial ones but I like to twiddle. Building a lightpen doesn't seem that hard. Just a photo-detector in a casing, perhaps a lense, and maybe a diode or two (I'm just guessing since I don't know word one about that kind of stuff). A mouse would be a bit tougher but not impossible. Would the parts for these cost just as much as the commercial product?