Project 2.11.5: Potentiometer Servo Link

Description	This project uses a potentiometer to control the angular position of a servo motor from 0 to 180 degrees, providing precise manual positioning control.
Use case	This project can be used in automation systems, interactive installations, and embedded control applications.

Components (Things You will need)

Building the circuit

Things Needed:

• Arduino Uno = 1
• Arduino USB cable = 1
• Potentiometer = 1
• Servo motor = 1
• Breadboard = 1
• Jumper wires

Mounting the component on the breadboard

Step 1: Place the Potentiometer on the breadboard.

NB: Make sure all components are securely placed on the breadboard with correct orientation.

WIRING THE CIRCUIT

Step 2: Connect the 5V pin on the Arduino to the positive (+) power rail of the breadboard using male-to-male jumper wires.

Step 3: Connect the GND pin on the Arduino to the negative (–) power rail of the breadboard using male-to-male jumper wires.

The power rails will now supply power to multiple components.

Step 4: Connect one outer pin of the Potentiometer to the GND (-) rail on the Breadboard using male-to-male jumper wire.

Step 5: Connect the other outer pin of the Potentiometer to the 5V (+) rail on the Breadboard using male-to-male jumper wire.

Step 6: Connect the middle pin of the Potentiometer to Analog Pin A0 on the Arduino using male-to-male jumper wire.

Step 7: Connect the Signal (Orange/Yellow) of the Servo Motor to Digital Pin 9 on the Arduino using male-to-male jumper wire.

Step 8: Connect the VCC (Red) wire of the Servo Motor to the 5V (+) rail on the breadboard using male-to-male jumper wire.

Step 9: Connect the GND (Brown/Black) wire to the GND (-) rail on the breadboard using male-to-male jumper wire.

Make sure to connect the Arduino USB cable to the Arduino board. Place the Servo Blade firmly on the Servo Motor.

PROGRAMMING

Step 1: Open your Arduino IDE. See how to set up here: Getting Started.

Step 2: Type the following code in your Arduino IDE: #include <Servo.h>,const int potPin = A0;, const int servoPin = 9;, Servo myServo;, int potValue;, int servoAngle; as shown in the image below.

Step 3: Type the following code in your Arduino inside the void setup() myServo.attach(servoPin);,Serial.begin(9600); as shown in the image below.

Step 4: Type the following code in your Arduino IDE: potValue = analogRead(potPin);, servoAngle = map(potValue, 0, 1023, 0, 180);, myServo.write(servoAngle);, Serial.print("Potentiometer: ");, Serial.print(potValue);, Serial.print(" Servo Angle: ");, Serial.print(servoAngle);, Serial.println("°");, delay(15); as shown in the image below.

Uploading the code

Step 1: Save your code. See the Getting Started section

Step 2: Select the Arduino board and port. See the Getting Started section

Step 3: Upload your code.

CONCLUSION

This project helps learners understand how to combine multiple components with Arduino to create more complex interactive systems and automation solutions.