Rotary encoder?

[torbb]

Any support for this encoder?

https://www.ebay.com/itm/NEW-600P-R-Phot...2568475385

[Briney Eye]

Yuriy's board for glass scales ought to work, but I think you will need to add pull-up resistors because of the open-collector output. You can get the same 30mm form factor rotary encoders with a voltage output (they just install 2k pull-ups inside of them) if you keep searching.