2 buttons pressed

[briangaskell21]

Im working on a project that i want 2 buttons to be pressed and then filck a realy on so if wont turn on realy till it has 2 buttons pressed i was play with a if statment but i cant get it to work`

int button1 = 7;
int button2 = 8;


void setup() {
 
 pinMode(LED_BUILTIN, OUTPUT);
pinMode (button1, INPUT_PULLUP);
pinMode (button2, INPUT_PULLUP);
}

void loop() {
  
  digitalWrite(LED_BUILTIN, LOW);
  {
    if (digitalRead)(button1 == LOW && button2 == LOW);
 
    digitalWrite(LED_BUILTIN, HIGH);
    }
    

    }

   

[paulpaulson]

@briangaskell21

i cant get it to work

Hello briangaskell21
Post your sketch, well formated, with well-tempered comments and in so called code tags "</>" and schematic to see how we can help.

[TomGeorge]

Hi, @briangaskell21
Welcome to the forum.

How to get the best out of this forum

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Thanks.. Tom..

[Wawa]

if (digitalRead (button1) == LOW && digitalRead (button2) == LOW)  // must read both of them
  {
  // do something
  }

Put some delay() after you turn on the LED, otherwise it isn't on long enough to see.
Leo..

Edit: semicolon blunder corrected.

[gcjr]

@briangaskell21

utton2 == LOW);

delete the semicolon

[TomGeorge]

Hi, @briangaskell21

What model Arduino are you using?

Look at this bit of code;

  {
    if (digitalRead)(button1 == LOW && button2 == LOW);
    digitalWrite(LED_BUILTIN, HIGH);
  }

How do you structure an if statement?

if - Arduino Reference

Also how will you turn the LED off, you need extra code to do that.

Where is your digitalRead statement to read each of the button inputs?

digitalRead() - Arduino Reference

Tip. Press [ CTRL ] [ T ] in the IDE and you code will be formatted with the corrected indentation.

Please post your edited code in a new post, do not go back and edit the original.

Thanks.. Tom..

[briangaskell21]

Im using a uno am only using the led as a trial i will be adding a realy to turn on for 10 sec then off will try tonight as im at work at moment thanks

[briangaskell21]

hi thanks that helped. it working now ill work on adding relay now thans agan

int button1 = 7;
int button2 = 8;


void setup() {

  pinMode(LED_BUILTIN, OUTPUT);
  pinMode (button1, INPUT_PULLUP);
  pinMode (button2, INPUT_PULLUP);
}

void loop() {

  digitalWrite(LED_BUILTIN, LOW);


  if (digitalRead (button1) == LOW && digitalRead (button2) == LOW) {

    digitalWrite(LED_BUILTIN, HIGH);

    delay (9000);
  }
}