Using a optical coder

[RodSTAR]

Hello all

1) Which is the method of programming used for to know the directions of rotation with these optical coders?

2)the next opticals coders agree?

thank's

The encoder in the photo is not a quadrature encoder. quadrature encoders have two channels (usually called A and B) and sometimes also an index as full revolution reference, and as you see (read) in the photo, it has only the full revolution reference (index) and 1 channel (channel A). you can get nice and cheap motors with quadrature encoders in the surplus market.

[GrandPa]

You may want to have a look at US Digital website, to find appropriate encoders.

I would also suggest you to use PIC18FXX31 family. They have built-in quadrature encoder interface module with distance, direction and speed. Much easier to deal with and with extra features like noise protection too. I'm personally using PIC18F4331 and it work great with stepper + quad. encoder.

Hope this can help!

J-P

Huh? Last question was 8 months ago ? (Ooooooops)