Re: Barcodes & error detection

On 9/8/05, Brian Davis wrote:

>    Using retroreflective white tape or reflective but slightly diffusive tape
> (an aluminum duct tape slightly crinkled and flattened again; I tried it as
> flat
> as possible as well) would seem to work, but actual tests show that it often
> can't be distinguished from white.

Are you lighting the area with a light brick, or relying on ambient
illumination?  I find the Lego light sensor extremely finicky in "real
work" situation, and try to always shield the area from ambient and
provide my own illumination.

-Rob A>