1 LED control with 3 push button

Other Hardware LEDs and Multiplexing
1

when I on 1 push button LED on-time 3 seconds, and I press it again, it will automatic off, that the way when I press 2 pushbuttons LED on time is 5 seconds and if I press 3 push button LED on time is 10 seconds. please, somebody, help me.

2

divyajeet_22:
please, somebody, help me.

The most effective way to get help, is for you to post the code you tried so far, and describe what's not/working, and say what you specifically need with.

3

Does this:

push button LED on-time 3 seconds, and I press it again, it will automatic off,

... mean that if you press the button again while the led is on (for the 3/5/10) seconds, it must be interrupted and turned off straight away?

4

You could refer to the below code:

#include <ezButton.h>

ezButton button1(6);  // create Button object that attach to pin 6;
ezButton button2(7);  // create Button object that attach to pin 7;
ezButton button3(8);  // create Button object that attach to pin 8;

const int led_pin = 10;
const unsigned long led_on_interval = 0;
unsigned long previousMillis = 0;
int led_state = LOW;

bool is_trigger = false;

void setup() {
  Serial.begin(9600);

  button1.setDebounceTime(100); // set debounce time to 100 milliseconds
  button2.setDebounceTime(100); // set debounce time to 100 milliseconds
  button3.setDebounceTime(100); // set debounce time to 100 milliseconds

  inMode(led_pin, OUTPUT);
  digitalWrite(led_pin, led_state);
}

void loop() {
  button1.loop(); // MUST call the loop() function first
  button2.loop(); // MUST call the loop() function first
  button3.loop(); // MUST call the loop() function first

  int btn1State = button1.getState();
  int btn2State = button2.getState();
  int btn3State = button3.getState();

  int case = 0;
  
  if(btn1State == LOW && btn2State == LOW && btn3State == LOW){ // three button
    case = 3;
    led_on_interval = 10000; // 10 seconds
  }
  else if(btn1State == LOW && btn2State == LOW){ // two button
    case = 3;
    led_on_interval = 5000; // 5 seconds
  }
  else if(btn1State == LOW){ // one button
    case = 3;
    led_on_interval = 3000; // 3 seconds
  }
  else { // no button
    is_trigger = false;
  }

  if(case != 0 && is_trigger == false) {
    is_trigger = true;
    led_state = (led_state == LOW)? HIGH : LOW;
    previousMillis = millis(); // save timestamp
    digitalWrite(led_pin, led_state); // control led
  }

  if (millis() - previousMillis >= led_on_interval) {
    led_state = LOW; // turn OFF LED after led_on_interval
    digitalWrite(led_pin, led_state); // control led
  }
}

The library is available here