How to run BUZZER and LED simultaneously

[b0lero]

Hello dear geeks, I'm stuck and need your help!

How can I run LED and Buzzer simultaneously, my current code will run either the LED or the BUZZER FIRST then will carry on with the following line of code

My goal is: Press the button to stop the loop and simultaneously make noise and flash the RED LED

void modeOff() {
  digitalWrite(GREEN_LED, LOW); // Switch OFF  GREEN LED 
  digitalWrite(RED_LED, HIGH); // Switch ON RED LED
  delay(1000); // Delay for 1 second
  digitalWrite(RED_LED, LOW); // Switch OFF RED LED
  digitalWrite(GREEN_LED, HIGH); Switch ON GREEN LED
  
    tone(BUZZER, 1350); // Make sound
    delay(150);
    tone(BUZZER, 950); 
    delay(150);
    tone(BUZZER, 450); 
    delay(200);
    noTone(BUZZER); 
}

So far: If the button is pressed loop is stopped, RED LED FLASH and then BUZZ.

How do we run the LED and the BUZZ at the same time?

[anon56112670]

You take a look at the blink without delay example code in the IDE, and get rid of the delays.

[LarryD]

This shows you what’s basically needed.

Flashing multiple LEDs at the same time

Introduction A common question is to ask how to flash 2 (or more) LEDs at the same time. Typically the person asking will be using delay and will be experiencing the main problem with delay: it blocks and stops anything else from happening. This tutorial contains several different approaches to the problem of flashing 2 or more LEDs at the same time with independent timing for each LED. The basic principles for each can all be adapted for other situations requiring multiple timers working inde…