SERVO ARM

Servo motor control using potentiometer

This setup demonstrates how to control the position of a servo motor using a potentiometer. A potentiometer acts as an analog input device that varies its resistance based on the rotation of its knob. This varying resistance is read by an Arduino UNO as an analog value (ranging from 0 to 1023). The Arduino then maps this value to a corresponding servo angle (typically from 0° to 180°), allowing precise manual control of the servo motor's shaft position.

As the user rotates the potentiometer, the servo motor’s shaft moves proportionally, making this a common method in DIY projects and robotics to control movement manually.
Key Components:

Arduino UNO
Servo Motor (e.g., SG90)
10kΩ Potentiometer
Jumper Wires
Breadboard (optional)


Working Principle:

The potentiometer sends an analog signal (0–1023) to the Arduino.
The Arduino reads this value using the analogRead() function.
This value is then mapped to a servo angle (0–180 degrees) using the map() function.
The mapped angle is sent to the servo motor using the Servo library and the write() function.
As the potentiometer is rotated, the servo motor moves accordingly.

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