> On Jul 29, 2020, at 11:22 PM, Steve Malikoff via cctalk
> <[email protected]> wrote:
>
> ...
> Paul's reader idea sounds fine. I have a super simple idea, how about a
> 3D-printed guide with a geared hand crank and a bracket for attaching a
> mobile phone looking down at the
> tape running through the guide below it. Then set it to record video and
> crank away at a steady rate. The crank has a meter or moving widget to add
> additional means of tracking.
> At a later stage some video processing could read the pattern from the video.
> There would undoubtedly be a python library for that. It would capture the
> label and other
> labelling nicely too.
That could certainly be done. Not that 9 photocells is all that hard, though.
I'm not sure if the Python code for this exists but it can't be all that hard
to write.
I think I saw something similar for a card reader: feed the card, position it
under a camera, take a photo, repeat.
paul
