Arduino按钮继电器控制

Question

我不是 arduino 编码的专业人士，我有一个关于 Sketch 的问题。我需要用按钮控制继电器的代码。我有 3 个按钮、3 个 LED 和 2 个继电器。当按下 1 个按钮时，选择第一个 LED，如果两次按下，则选择第二个 LED。按下第二个按钮一次则选择第一个继电器，如果两次按下则选择第二个继电器，最后启动按钮启动所有这些命令，然后点亮第三个 LED。 请帮忙！

int button1=2;
int button2=3;
int button3=4;
int relay1=8;
int relay2=9;
int led=5;
int led2=6;
int led3=7;
int button1State=0;
int button2State=0;
int button3State=0;
void setup() {
      // put your setup code here, to run once:
Serial.begin(9600);
pinMode(button1, INPUT_PULLUP);
pinMode(button2,INPUT_PULLUP);
pinMode(button3,INPUT_PULLUP):
pinMode(relay1, OUTPUT);
digitalWrite(relay1, HIGH);
pinMode(relay2,OUTPUT);
digitalWrite(relay2, HIGH);
pinMode(led,OUTPUT);
pinMode(led2,OUTPUT);
pinMode(led3,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
button1State = digitalRead(button1);//when once click turn led
if(button1State==HIGH){
  digitalWrite(led,HIGH);
  delay(wait);

if(button1State==HIGH){ //when clicked twice then turn on led 2, but i dont know how to do it
digitalWrite(led2,HIGH);
delay(wait)
}
}
if (button2State== HIGH){
  digitalWrite(relay1,HIGH);
  delay(wait);

if(button2State==HIGH){ //when clicked twice turn on second relay but i dont know how to do this
  digitalWrite(relay2,HIGH);
  delay(wait);
}
if(button2State==HIGH){
  digitalWrite(relay1&&relay2,HIGH);
  delay(wait);
}
}
//and click start i dont kknow how to do this :((
//when select led then circuits run for 10 sec,if led 2 select then circuit runs for 20 sec
}