Reflective opto sensor suitable for bar code reading?
David VanHorn email (remove spam text)
At 02:47 PM 4/18/01 -0700, you wrote:
> Anyone aware of a reflective opto sensor that kinda looks like an
>interrupter (but relies on reflection instead of transmission) and has a
>narrow enough beam to read barcodes? I'd like to print barcodes on index
>cards and slide them through a cheap reader. The output can just be
>digital bar present/not present. I'll decode it in the PIC.
> Any ideas?
Use any of the Omron sensors, through a slot.
However, you'd be better off with an illuminator at 45 degrees, and sensor
You want to sense diffuse reflections, not speculars.
Dave's Engineering Page: http://www.dvanhorn.org
Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics
In reply to: <email@example.com>
See also: www.piclist.com/techref/io/sensors.htm?key=sensor
You must be a member of the
piclist mailing list
(not only a www.piclist.com member) to post to the