How To Control a Servo Motor with a Potentiometer DIY Project using Arduino NANO & Servo Motor by WTC Zone

This project allows you to control the position of a servo motor based on the rotation of a 10k potentiometer. The servo motor's movement will range from 0° to 180°, corresponding to the potentiometer's minimum and maximum positions.

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Parts Required

1. Arduino Nano
   (Microcontroller for processing the potentiometer input and controlling the servo motor)
2. Servo Motor
   (A small motor with a gear mechanism that can rotate to specific angles)
3. 10k Potentiometer
   (For adjusting the servo position)
4. Breadboard
   (For circuit assembly)
5. Connecting Wires
   (To connect components)
6. Power Supply
   (5V USB or external power supply for the Arduino Nano)

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Circuit Diagram

Here's how to connect the components:

1. Potentiometer Connections:

   • Middle pin: Connect to A0 (analog pin) on the Arduino Nano.
   • One side pin: Connect to 5V.
   • Other side pin: Connect to GND.

2. Servo Motor Connections:

   • Signal (Orange): Connect to D9 on the Arduino Nano.
   • VCC (Red): Connect to 5V.
   • GND (Brown): Connect to GND.

Circuit Diagram

Video Link: - Click Here For Video

How To Control a Servo Motor with a Potentiometer DIY Project using Arduino NANO & Servo Motor by WTC Zone  simple Circuit: -

How To Control a Servo Motor with a Potentiometer DIY Project using Arduino NANO & Servo Motor by WTC Zone Arduino Programming: -

Arduino IDE Program

Code for Controlling a Servo Motor with a Potentiometer DIY Project using Arduino NANO & Servo Motor by WTC Zone

    
    #include <Servo.h>
    Servo myServo;
    const int potPin = A0;
    const int servoPin = 9;
    int potValue = 0;
    int angle = 0;
    void setup() {
    myServo.attach(servoPin);
    Serial.begin(9600);
    }
    void loop() {
    potValue = analogRead(potPin);
    angle = map(potValue, 0, 1023, 0, 180);
    myServo.write(angle);
    Serial.println(angle);
    delay(15);
    }
  

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How It Works

1. Input from Potentiometer:

   • The potentiometer acts as a variable resistor. As you rotate it, it outputs a voltage that ranges between 0V and 5V.
   • This voltage is read by the Arduino Nano's analog pin as a value between 0 and 1023.

2. Mapping to Servo Angle:

   • The map() function converts the potentiometer's value (0–1023) into a servo angle (0–180°).

3. Servo Movement:

   • The servo motor receives PWM signals from the Arduino on pin D9. The duty cycle of the signal corresponds to the desired angle, which moves the motor to that position.

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Explanation of the Code

• Library: The Servo.h library simplifies controlling servo motors by generating appropriate PWM signals.
• Analog Input: analogRead(potPin) reads the potentiometer's position.
• Mapping: map() adjusts the potentiometer's value to fit the servo's range.
• Servo Control: myServo.write(angle) sets the servo position.
• Debugging: Serial.println(angle) helps visualize the current angle in the Serial Monitor.

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Applications

• Robotics projects requiring precise angle control.
• RC planes, cars, or boats.
• Educational tools to understand the basics of servos and PWM.

Would you like a visual circuit diagram or further clarification?

Let me know if you need further help refining or customizing the project! 😊

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This setup and code will create a fun and responsive digital dice using your 7-segment servo display. Let me know if you encounter any issue.

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