barcode reader
"The Barcode Scanner uses standard LEGO parts with two exceptions. The first is the laserbrick, a selfbuilt LEGO brick with a modified laser pointer connected to an output of the RCX. The second part is the barcode label from a LEGO box.
The list of tasks, the hardware of the Barcode Scanner must be able to perform:
_ moving the sliding carriage and the barcode label (using a gear) in both directions by a motor
_ detecting the start position of the sliding carriage by a switch
_ detecting the position of the sliding carriage with a rotation sensor
_ measuring the amount of reflected laser light and detecting black & white bars with a light sensor
_ powering the laser on and off
..."
lol... Very cool.
I'd like to have a barcode scanner for my Bookshelf project. And I have a couple Mindstorm's around...
And there's something hot about building a laser into a lego project. ;)
(via Make: - LEGO barcode reader)
No comments:
Post a Comment
NOTE: Anonymous Commenting has been turned off for a while... The comment spammers are just killing me...
ALL comments are moderated. I will review every comment before it will appear on the blog.
Your comment WILL NOT APPEAR UNTIL I approve it. This may take some hours...
I reserve, and will use, the right to not approve ANY comment for ANY reason. I will not usually, but if it's off topic, spam (or even close to spam-like), inflammatory, mean, etc, etc, well... then...
Please see my comment policy for more information if you are interested.
Thanks,
Greg
PS. I am proactively moderating comments. Your comment WILL NOT APPEAR UNTIL I approve it. This may take some hours...