#include <OneButton.h>

OneButton button(A0, true);

#define L1 2
int RLY1 = LOW;

#define L2 3
int RLY2 = LOW;

#define L3 4
int RLY3 = LOW;



void setup() {
  pinMode(3, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(4, OUTPUT);

  button.attachDoubleClick(doubleclick);
  button.attachClick(singleclick);
  button.attachLongPressStop(longclick);
}

void loop() {
  button.tick();
  delay(10);
}

void doubleclick(){
  RLY1 =~ RLY1;
  digitalWrite(L1, RLY1);
  delay(250);
}
void singleclick(){
  RLY2 =~ RLY2;
  digitalWrite(L2, RLY2);
  delay(250);
}
void longclick(){
  RLY3 =~ RLY3;
  digitalWrite(L3, RLY3);
  delay(250);
}