Barcode may not be too expensive.
The book production costs for any format that requires special paper trim would eat into the solution costs.
$3.00 may be very well within low resolution fixed position barcode costs.

Contact me off-line.


w..


alan smith wrote:

> Thought of barcode, but too expensive.  Total solution for this, less the PIC, needs to be around $3 or less.
>
> Mike Hawkshaw <mike@spikey-mike.com> wrote:alan smith wrote..
> > Sent: 11 October 2005 17:49
> > To: Microcontroller discussion list - Public.
> > Subject: [OT] sensing a page in a book
> >
> > Think of 10 pages in a notebook, like a ring binder. As each
> > page is turned, how to keep track of what page is facing you.
>
> Print barcodes at the top of each page and use something to read them?
> You could use a video cammera and software (possibly even in a pic) or a
> proper barcode reader.
>
> Cheers...Mike.
>
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