Lesson 5: Potentiometer



A potentiometer is a variable resistor with adjustable resistance. Potentiometers are used in robotics as regulators of various parameters - volume of sound, power, voltage, etc. 

 In this lesson we will connect potentiometer to Arduino, and look to its signal values through 'Serial monitor'.

 Scheme on breadboard:

Upload this code, and open 'Serial Monitor' in Arduino IDE application. Then rotate Potentiometer to see changes:

 void setup()
{
  //initialize A0 port as INPUT
  pinMode(A0, INPUT);
  //initialize Serial port to 9600
  Serial.begin(9600);
}

 void loop()
{
  //print the result of Potentiometer in Serial monitor
  Serial.println(analogRead(A0));
  //wait 2 seconds
  delay(2000);

}












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