• A potentiometer is basic mechanical device that provides a varying amount of resistance, when its shaft is moved.
• By allowing voltage to pass through potentiometer into an analog input, you can be able to measure the resistance generated by potentiometer as an analog value

Components Required

• Arduino Board
• 10k ohm Potentiometer
• Wires

Procedure

1. Connect one of the outer pins in the potentiometer to the ground.
2. Connect the other outer pin to 5 volts
3. Connect the middle pin of the potentiometer to the analog pin A0.

4. Open the Arduino Editor on your computer.

5. In the setup function, type the following:

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Serial.begin(9600);

6. In the loop function, declare a variable to store resistance value

int readValue = analogRead(A0);

7. On the same loop function print the value to serial monitor like so:

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Serial.println(readValue)

Full source Code

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// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);
}

// the loop routine runs over and over again forever:
void loop() {
  // read the input on analog pin 0:
  int sensorValue = analogRead(A0);
  // print out the value you read:
  Serial.println(sensorValue);
  delay(1);        // delay in between reads for stability
}