带按钮的arduino计数器

Question

我需要一些关于按钮计数器的代码帮助。 我想在Arduino做一个柜台。如果我按下按钮，Arduino将增加计数值+1。 我想如果我按住一个按钮，计数器只需在计数值上加1值。 我为它做这个程序.. 请帮我修好程序:(

    int pulse = 7;
    unsigned long t;
    unsigned long previousMillis = 0;
    int execussionTime = 1;
    long count = 0;

    void setup() {
      // put your setup code here, to run once:
    Serial.begin (9600);


    }

    void loop() {
      // put your main code here, to run repeatedly:
      t = millis();
      if (digitalRead(pulse) == HIGH){
        if(t - previousMillis < execussionTime) // 0 < 1 --> true and doing count + 1
        {
        count++;
        }
       }
       if(digitalRead(pulse) == LOW){
       previousMillis = t; 
       }
        Serial.println(count);
        Serial.println(t);
        Serial.print("PM = ");
        Serial.println(previousMillis);
    }