I remember years ago, an article about constructing a light pen in one of the old mags. It may have been CALL APPLE, InCider, or another.
Does anyone else here recall that? I think that we made one back in the early 80s, and I know that we had one in the office, but I do not frankly recall it ever getting much use, and I do not remember if it was a handmade piece or a commercial piece, only that we wanted to use it for a spreadsheet programme, but because of the limited audience that did not happen.
I thought it might be fun to try to make one to use with A2D or with the new ProDOS menus (they support a mouse, so a light pen shouldn't be too hard, as it only needs to register the raster location.
I also recall thinking just how brilliant these were in the 80s, but they never really came into style.
I also had a leght pen on my Vectrex home arcade, but only two titles supported it (perhaps there was a third, but I only recall two). It was interesting, but little more than a toy because of the lack of software support. Basically the Nintendo Robot of its era.