[q] seeking a barcode scanner IC for a greycode position sensor

Dear hive mind,

As it says… I have a paper printed greycode of at least 14 bits. Maybe as high as 20. I want an TSOP package IC that can read the greycode on the paper very fast. It should work even if the paper is wrapped around a drum (inside or out), within reason. Flat on a disc is also ok.

I’ve seen some attempts to grab an image from an optical mouse. The read time is 0.5s/image? At 19×19 pixels.

I also looked at a color sensor and a color print. No tests yet.

The goal is a low cost hollow shaft absolute encoder. The only ones I find today are magnetic and ~$200usd each.

So…got any leads, please?

submitted by /u/i-make-robots
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