Hi Someone,
Well maybe it helps a bit.
I didnt realise you would put two bar codes
one above the other.
I understand that an eight bit word
can be written as two successive four bit words.
So i must be part way there.
So how do you write a four bit word ?
As the scanning scans across the bar code,
the RGB sensors could possibly give a three bit word,
derived from the presence of RGB in the bar
being examined.
I assume the laser scanning would be replaced by a
standard white light scanning beam ?
The usual barcode device gives a serial output.
I dont see how you get a four bit parallel output.
I can see the possibility of a three bit output,
based on the RGB.
Could you please describe how a four bit word would
be given from an arrangement you describe.
And why is the black and white barcode there ?
Regards, John