Arduino -组合草图

Question

新手编程和Arduino..我目前正在为我儿子的淘金热立体图做一个项目，增加了电子设备。据我所知，它不喜欢读取delay()代码。

请多多指教。谢谢。

我正在尝试组合两个草图；一个是随机波动的LEDS (充当矿井中的灯笼)，另一个是拉动绳子上下的伺服装置(充当电梯滑轮)。

每个草图都能正常工作。我不确定在不使用"delay()“的情况下将两者结合起来的正确方法。

Leds示意图如下；

  /*random fluctuating leds*/

void setup() {
  // put your setup code here, to run once:
pinMode(12,LOW);
pinMode(11,LOW);
pinMode(10,LOW);
}

void loop() {
  // put your main code here, to run repeatedly:
analogWrite(12, random(120)+135);
analogWrite(11, random(120)+135);
analogWrite(10, random(120)+135);
delay(random(100));
}

伺服扫描示意图如下；

/* Sweep
 by BARRAGAN <http://barraganstudio.com> 
 This example code is in the public domain.

 modified 8 Nov 2013
 by Scott Fitzgerald
 http://arduino.cc/en/Tutorial/Sweep
*/ 

#include <Servo.h> 

Servo myservo;  // create servo object to control a servo 
                // twelve servo objects can be created on most boards

int pos = 0;    // variable to store the servo position 

void setup() 
{ 
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object 
} 

void loop() 
{ 
  for(pos = 0; pos <= 180; pos += 1) // goes from 0 degrees to 180 degrees 
  {                                  // in steps of 1 degree 
    myservo.write(pos);              // tell servo to go to position in variable 'pos' 
    delay(15);                       // waits 15ms for the servo to reach the position 
  } 
  for(pos = 180; pos>=0; pos-=1)     // goes from 180 degrees to 0 degrees 
  {                                
    myservo.write(pos);              // tell servo to go to position in variable 'pos' 
    delay(15);                       // waits 15ms for the servo to reach the position 
  } 
} 

Answer 1

通常，您可以使用以下代码替换delay(1000)：

unsigned long interval=1000;  // the time we need to wait
unsigned long previousMillis=0; // millis() returns an unsigned long.

void setup() {
//...
}

void loop() {
 if ((unsigned long)(millis() - previousMillis) >= interval) {
 previousMillis = millis();
 // ... 
 }
}

所以你需要像下面这样的代码，我还没有测试过，但希望能给你一个起点：

#include <Servo.h> 

Servo myservo;  // create servo object to control a servo 
                // twelve servo objects can be created on most boards

int pos = 0;    // variable to store the servo position 
int pos_direction=0; // motor direction

unsigned long interval=1000;  // the time we need to wait (analogwrite)
unsigned long previousMillis=0; // millis() returns an unsigned long.

unsigned long interval1=15;  // the time we need to wait (servo)
unsigned long previousMillis1=0; // millis() returns an unsigned long.

void setup() {
   interval = random(100);
   pinMode(12,LOW);
   pinMode(11,LOW);
   pinMode(10,LOW);
   myservo.attach(9);  // attaches the servo on pin 9 to the servo object 
}

void loop() {
 if ((unsigned long)(millis() - previousMillis) >= interval) {
    previousMillis = millis();
    analogWrite(12, random(120)+135);
    analogWrite(11, random(120)+135);
    analogWrite(10, random(120)+135);
    interval = random(100);
 }

 if ((unsigned long)(millis() - previousMillis1) >= interval1) {
    previousMillis1 = millis();
      if(pos_direction==0){
         if(pos==180) pos_direction=1;
         else pos++;
      }
 else if(pos_direction==1){
    if(pos==0) pos_direction=0;
    else pos--;
 }
 myservo.write(pos); 
 // ... 
 }
}