Trying to get diffrent serial prints from 2 buttons [SOLVED]

Projects Programming
1

Hey, im getting weird results trying to get serial prints from 2 buttons
the two buttons are on my breadboard, one is left and one is right (the problem isnt in build)
my code:

const int buttonPin = 11; //set pin for button 1
const int buttonPin2 = 12; // set pin for button 2
int buttonState = 0; //set the state of the button to anything which isnt HIGH
int buttonState2 = 0;
void setup (){

  • pinMode (buttonPin, INPUT); //SET BOTH BUTTONS IS INPUT*

  • pinMode (buttonPin2, INPUT);*

  • Serial.begin(9600); // add serial commands*
    }
    void loop (){

  • buttonState=digitalRead (buttonPin); // WRITE DOWN THE STATE OF EACH BUTTON*

  • buttonState2=digitalRead (buttonPin2);*

  • if (buttonState==LOW){ // CHECK BUTTON 1*

  • //button 1 is pressed!*

  • Serial.println("Right");*

  • }*
    else if (buttonState2==LOW){ //CHECK BUTTON 2

  • //button 2 is pressed!*

  • Serial.println("Left");*

  • }*
    }

what im receiving is an incredible amount of "right" and "left" and the same time , even thought im not clicking the buttons. rewrote the code several times but nothing helped

again, im tring to get a serial messege "right" when the right button is clicked and "left" when the left one is clicked.

can someone tell me what am i doing wrong?

any help will be totally appreciated, Amit.

2

can someone tell me what am i doing wrong?

Not using the state-change example in the IDE

3

Do you have external pullup resistors? If not, change the pin modes to INPUT_PULLUP.

4

Hey, tried changing INPUT to INPUT_PULLUP,
now I only get signal from left button (only when I click it).
Is there any other problem in the code or shall I re-check my schematics?

thanks for the help, Amit.

5

Hey, I found my mistake,
turns out that the + and - parts of the breadboard are divided in the middle of the breadboard to right and left, I didn't know that but now I know, that was my problem.