Other Arduino Codes and Videos by Robojax

Control Servo with potentiometer and LCD1602 using Arduino

This is the Arduino code for Control Servo with potentiometer and LCD1602

In this video you will learn how to control a servo using potentiometer (variable resistor), LCD1602 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

*/


// May 20, 2018 20:08
// Written by Ahmad S. for Robojax.com at Ajax, Ontario, Canada
//Watch video for this code at https://youtu.be/DN1LPMSZtNA
 //This code is taken from http://robojax.com/learn/arduino


#include <LiquidCrystal.h>

// initialize the library by associating any needed LCD interface pin
// with the arduino pin number it is connected to
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);


// start of servo settings *******
#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
int angle;    // the angle servo is sent to
// END of servo settings *******

void setup() {
  // Robojax Servo knob with LCD1602 Test 
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
   myservo.attach(9);  // attaches the servo on pin 9 to the servo object
  // Robojax Servo knob with LCD1602 Test  
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Robojax Srevo Knob");
    delay(2000);
}

void loop() {
  // Robojax Servo knob with LCD1602 Test 
  val = analogRead(potpin);            // reads the value of the potentiometer (value between 0 and 1023)
  angle = map(val, 0, 1023, 0, 180);     // scale it to use it with the servo (value between 0 and 180)
  myservo.write(angle);                  // sets the servo position according to the scaled value
  
    
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Pot. Value:");
  // set the cursor to column 0, line 1
    lcd.setCursor(11, 0);
    lcd.print(val);
  // (note: line 1 is the second row, since counting begins with 0):
    lcd.setCursor(0, 1);
  // print the number of seconds since reset:
    lcd.print("Angle     :");
    lcd.setCursor(11, 1);
    lcd.print(angle);


  delay(500);
  // Robojax Servo knob with LCD1602 Test  
}   

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