How to use Encoder

How to use this Encoder to control motor using arduino

Can you find a part number on it? Can you find a datasheet for that part number?

What do you want the motor to do? What type of motor is it? What power does it run on?

Are you even sure it is an encoder? Might just be a servo :wink: 2x power and 1x control signal.

What is the thing in the picture? The whole thing?

Actually this is the actual equipment
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I wonder if that's an actuator, operating (perhaps) as a servo as I speculated above?

What does it actually do?- I mean in its original machine where you are presumably scavenging from?

Its clearly a linear actuator, that device may be an encoder or potentiometer, perhaps measuring some
resistances would help tell if its the latter.