Other Arduino Codes and Videos by Robojax
In this video you will learn how to control a servo using potentiometer (variable resistor) and Arduino.
/*
Controlling a servo position using a potentiometer (variable resistor)
by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>
modified on 8 Nov 2013
by Scott Fitzgerald
http://www.arduino.cc/en/Tutorial/Knob
Update by Ahmad Shamshiri for Robojax.com in Ajax, Ontario, Canada
Watch video for this code at https://youtu.be/X_drE5tLbz0
This code is taken from http://robojax.com/learn/arduino
*/
#include <Servo.h>
Servo myservo; // create servo object to control a servo
int potpin = A0; // analog pin used to connect the potentiometer
int val; // variable to read the value from the analog pin
void setup() {
// Servo knob demo by Robojax.com
Serial.begin(9600); // setup serial
myservo.attach(9); // attaches the servo on pin 9 to the servo object
}
void loop() {
// Servo knob demo by Robojax.com
val = analogRead(potpin); // reads the value of the potentiometer (value between 0 and 1023)
Serial.print(val);
Serial.print(" ");
val = map(val, 0, 1023, 0, 180); // scale it to use it with the servo (value between 0 and 180)
myservo.write(val); // sets the servo position according to the scaled value
// Servo knob demo by Robojax.com
Serial.print(val);
Serial.println();
delay(200); // waits for the servo to get there
}
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