Hi All,
I have a project where I need to use Linear actuators but want to manually control them with these as opposed to servo motors:
https://thepihut.com/products/cnc-rotar ... 60mm-black
I want to show the linear movement on a digital display. So say actuator thread pitch is 1.0mm then each click would be 0.01mm of linear movement.
I would like to know what other components I would require to interface between the rotary encoder and display. I am assuming a small power source would be all that's required for this application. Maybe a rechargeable battery.
I'm not sure I follow what you want to do and why you think those encoders will replace a servo. They're low voltage devices designed for user input and won't directly drive a motor, servo, or linear actuator.
If your aim is to measure rotation of the actuator's drive rod, couple the dial side of the encoder to it and connect the encoder terminals to a Pi or Pico. It won't give you position but it will give you amount and direction.
If your aim is to use those to control motor operation of the actuators they probably won't do so directly, and they certainly won't replace the motor/servo.
If your aim is something else, you'll need to explain it better and provide details of your linear actuators. Actually, you should probably do that anyway.
Either way, you'll need at least a micro controller to handle encoder input and display output. And motor control if that's a factor.
Statistics: Posted by thagrol — Tue May 20, 2025 12:04 am