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Hi all,
Has anyone got any ideas about where to get some C code to read a barcode?
Ive got a pen but dont know what to plug it to.
Does the data sheet mention if the pen has a schmitt-trigger input?
When the the pen sees pure black or white, it is easy to realize that the expected output should be a zero or a one. But if the bars have fuzzy edges, the reader will have a hard time to decide where/when to switch between a zero and a one. If the reader doesn't have a hysterese, it may emit a large number of transitions when seeing these fuzzy edges.