I haven't looked closely at your unpack().

This: 

my ($blu, $red, $grn, $ylw) = (@bytes[0], @bytes[12], @bytes[56], @byt
+es[120]);

[download]
may not be what you want. 
my ($blu, $red, $grn, $ylw) = ($bytes[0], $bytes[12], $bytes[56], $byt
+es[120]);

[download]
is the same. I'm not sure that is what you want either!
You are getting scalar values at particular byte offsets into the @byte array.

In reply to Re: Calling a variable value as a variable by Marshall
in thread Calling a variable value as a variable by echo5

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