Arduino Servo Motor Control With Pushbutton

Abhishek Ghosh

By Abhishek Ghosh May 9, 2017 2:50 am Updated on January 3, 2018

Arduino Servo Motor Control With Pushbutton

This is very easy, basic but important project. Because with just a button we can actually rotate things like a knob, mechanical regulator etc. Here is Circuit Diagram, Code To Create Arduino Servo Motor Control With Pushbutton Project. We are using TowerPro SG 5010 servo motor in this project but any TowerPro servo motor will work fine. Here is video of the thing :

Arduino Servo Motor Control With Pushbutton : Needed Components

You need just the servo motor, push button switch and some obvious components like a breadboard, few jumper wires etc.

Arduino Servo Motor Control With Pushbutton : Circuit Diagram and Code

This is very easy to join the components by looking at this image (we used 1K Ohm resistor in our test) :

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We have the full project on fritzing.org for you to download all the files and also the code is on Github.

Of course here is the code too :

#include <Servo.h> 
 const int servoPin = 8;  // Servo pin
 const int buttonPin = 9;  // Pushbutton pin
 int buttonState = 0; 
 int directionState = 0; 
 Servo myservo; 
 int pos = 0;
 
void setup() {
   myservo.attach(8);
   pinMode(buttonPin, INPUT);
 }

 void loop(){
   buttonState = digitalRead(buttonPin);
   if (directionState == 0){
     if (buttonState == HIGH) {
       directionState = 1;
       for(pos = 0; pos < 180; pos += 1)
       {
         myservo.write(pos);  
         delay(15);  // waits 15ms to reach the position 
       }
     }

   } else if (directionState == 1) {
     if (buttonState == HIGH) {
       directionState = 0;   
       
      for (pos = 180; pos>=1; pos -=1)
       {
         myservo.write(pos);
         delay(15);
       }
     }
   }
 }

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#include <Servo.h>

const int servoPin = 8; // Servo pin

const int buttonPin = 9; // Pushbutton pin

int buttonState = 0;

int directionState = 0;

Servo myservo;

int pos = 0;

void setup() {

myservo.attach(8);

pinMode(buttonPin, INPUT);

}

void loop(){

buttonState = digitalRead(buttonPin);

if (directionState == 0){

if (buttonState == HIGH) {

directionState = 1;

for(pos = 0; pos < 180; pos += 1)

{

myservo.write(pos);

delay(15); // waits 15ms to reach the position

}

} else if (directionState == 1) {

if (buttonState == HIGH) {

directionState = 0;

for (pos = 180; pos>=1; pos -=1)

{

myservo.write(pos);

delay(15);

}

Further Improvement Ideas

Previously we have shown you how to perform multitasking in Arduino Traffic Light With LED Display Timer With Push Button Switch.

Idea 1 :

Can you modify the project yourself so that normally there will be green light. When you will push the button, the green light will be off and yellow will momentarily on, then red light will be on. Also the timer will start and servo motor will start to sweep. At the end of swap, again red light will be off and green light will be on.

That kind of usage is normal safety precaution for industrial tools.

Idea 2 :

Similar setup like Idea 1 but normally there will be green light. When you will push the button, the green light will be off and yellow will momentarily on, then red light will be on and timer will start. When timer will end the servo will sweep.

That kind of usage is for making a mechanical knob digitally controlled with timer.

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Arduino Servo Motor Control With Pushbutton

Arduino Servo Motor Control With Pushbutton : Needed Components

Arduino Servo Motor Control With Pushbutton : Circuit Diagram and Code

Further Improvement Ideas

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Arduino Servo Motor Control With Pushbutton : Needed Components

Arduino Servo Motor Control With Pushbutton : Circuit Diagram and Code

Further Improvement Ideas

This Article Has Been Shared 9184 Times!

About Abhishek Ghosh

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