Servo button

Projects Programming
1

Hi guys, this is my first post, and i'm not the best with arduino yet. I'm trying to build a circuit which will turn on/off servo when the button is pressed. And i can't get it to work at all at the moment. What am I doing wrong?

#include <Servo.h>

const int servoPin=8;
const int buttonPin=2;

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=pos+1){
    }
  }

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

servo button_bb.png
servo button_bb.png1497×1647 235 KB

2 
if(directionState == 0){
    if (buttonState=HIGH)

One of these comparisons is wrong.

3

Can you tell us what that code should do ? Should it turn the servo by some angle after you press the button ?
What is going wrong ? How we'll know whats wrong if you don't tell us ? Please check this-Please check the troubleshooting guide before posting here. - Installation & Troubleshooting - Arduino Forum

-Malhar

4

Servo should be turning an angle when the button is pressed, as I said earlier. My circuit is connected as you can see on attached picture. However, my circuit and / or code don't seem to be working together, and at the end I'm getting no reaction...

5

Have you fixed the code?
Why doesn't the first conditional pair move the servo?

6

i can't see what's wrong with code, any suggestions?

7

Have another look at reply #1

8

AWOL:
Have another look at reply #1

I looked at it again... still can't see what's wrong with it. Beginnings are so frustrating :frowning:

9

either:

directionState == 0
or
buttonState=HIGH

is NOT being set (correctly)

*usually
= means assignment
== means conditional check