Arudion alternative for delay beside "Blinkwithoutdelay";

What I wanted to do is to run 2 traffic lights simultaneously(ex. North and South).Is there an alternative for delay besides millis? I tried to use Blinkwithoutdelay but as a newbie its very complicated.

int beam = 2;//Beam sensor
int greenled = 4;
int redled = 7;
int yellowled = 13;
int greenDuration =1000;    //normal time
int greenShortDuration = 1000;
int greenIncrement = 5000; //5 seconds
void setup() 
{
  // set the digital pin as output:
  pinMode(greenled, OUTPUT);  
  pinMode(redled, OUTPUT); 
  pinMode(greenled, OUTPUT); 
  pinMode(beam,INPUT); 
  Serial.begin(9600);
}

void loop()
{
    Serial.println("Status:low"); // indication
    digitalWrite(greenled, HIGH); //Green on for 5 seconds
    delay(greenDuration);
    digitalWrite(greenled, LOW); //Green off, yellow on for 2 seconds
    digitalWrite(yellowled, HIGH);
    delay(1000);
    digitalWrite(yellowled, LOW); //yellow off, red on for 5 seconds
    digitalWrite(redled, HIGH);
    delay(1000);
    digitalWrite(redled, LOW); //Red and Yellow off

    digitalWrite(greenled2, HIGH); //Green on for 1 seconds
    delay(1000);
    digitalWrite(greenled2, LOW); //Green off, yellow on for 1 seconds
    digitalWrite(yellowled2, HIGH);
    delay(1000);
    digitalWrite(yellowled2, LOW); //yellow off, red on for 1 seconds
    digitalWrite(redled2, HIGH);
    delay(1000);
    digitalWrite(redled2, LOW); //Red off
  if(digitalRead(beam)==HIGH){
    for(int i=1; i<=10; i++){
      Serial.println(i);

      while(i>=10){
          Serial.println("Motion Detected");
          greenDuration +=greenIncrement; //Add 5 seconds everytime
          Serial.println(greenDuration);

        break;
      }

      }

    }
         if(!digitalRead(beam)==HIGH){
        Serial.println("hey"); //indication of code is working
        greenDuration=greenShortDuration;
        return;

}

}

Learn it.

Four examples:

//Blink without Delay skeleton 
//4 examples demonstrated
//

//LED wiring options
//=============================================
//Depending which way your LEDs are wired, uncomment the next line.
//#define PlusEqualsON 

#ifdef PlusEqualsON
//wired so +5V turns LED ON
#define ledON  HIGH
#define ledOFF LOW
//=========================
#else
//wired so +5V turns LED OFF
#define ledON  LOW
#define ledOFF HIGH
//=========================
#endif

//switch wiring options
//=============================================
//Depending which way your switches are wired, uncomment the next line.
#define PushEqualsLOW 

#ifdef PushEqualsLOW 
//pushing the switch makes pin LOW
#define Pushed   LOW
#define Released HIGH
//=========================
#else
//pushing the switch makes pin HIGH
#define Pushed   HIGH
#define Released LOW
//=========================
#endif

//=============================================
unsigned long currentMillis;
unsigned long pin13Millis;
unsigned long pin12Millis;
unsigned long pin11Millis;
unsigned long SwitchMillis;

//if these are not changed in the sketch, they can be const
unsigned long debounceMillis = 100UL;     //100ms
unsigned long ledOnTime      = 5*1000UL;  //5 seconds

byte laststartSwitchState    = HIGH;
byte buttonState             = HIGH;
byte counter                 = 0;

//the following are enable/disable flags
//some of these might not be used in this sketch
boolean flag13 = true;
boolean flag12 = true;
boolean flag11 = true;
boolean flag10 = true;

const byte startSwitch = 2; //pushed = LOW
const byte testSwitch  = 3; //pushed = LOW

//**********************************************************************

void setup()
{
  Serial.begin(9600);
  
  digitalWrite(13,ledOFF);
  pinMode(13, OUTPUT); 

  digitalWrite(12,ledOFF);
  pinMode(12, OUTPUT);

  digitalWrite(11,ledOFF);
  pinMode(11, OUTPUT);
  
  digitalWrite(10,ledOFF);
  pinMode(10, OUTPUT);

  pinMode(startSwitch, INPUT_PULLUP); //pushed = LOW
  pinMode(testSwitch,  INPUT_PULLUP); //pushed = LOW

} //  >>>>>>>>>>>>>> E N D  O F  s e t u p ( ) <<<<<<<<<<<<<<<<<

void loop()
{
  //save the current time
  currentMillis = millis();

  //************************************* E x a m p l e  1
  //toggle pin 13 every 200mS
  //has 200ms or more gone by?
  if (currentMillis - pin13Millis >= 200UL)
  {
    //code here runs every 200ms
    //get ready for next iteration
    pin13Millis = pin13Millis + 200UL;
    //toggle pin 13
    digitalWrite(13,!digitalRead(13));
  }

  //************************************* E x a m p l e  2
  //at power up, pin 12 LED goes ON, after 3 seconds goes OFF and stays OFF
  //could be used as a powerup reset signal
  if (flag12 == true && currentMillis - pin12Millis <= 3000UL)
  {
    //code here runs for 3 seconds after power up, then stops
    digitalWrite(12,ledON);
  }
  else
  {
    digitalWrite(12,ledOFF);
    //disable further pin 12 control
    flag12 = false;
  }

  //************************************* E x a m p l e  3
  //if testSwitch is pushed and released
  //pin 11 LED goes ON for 5 seconds, then goes OFF 
  buttonState = digitalRead(testSwitch);
  
  //are we are allowed to check the switch and is it pressed?
  if(flag11 == true && buttonState == Pushed)
  {    
    //enable timing of LED on pin 11
    flag11 = false; //false --> timing is enabled
    //turn LED ON
    digitalWrite(11,ledON);
    //record the time LED turned ON
    pin11Millis = currentMillis;
  }
    
  //are we allowed and is it time to control pin 11
  if (flag11 == false && currentMillis - pin11Millis >= ledOnTime)
  {
    //if enabled, code here runs after ledOnTime ms goes by
    digitalWrite(11,ledOFF);
    //allow switch press detection again
    flag11 = true; //true --> switch monitoring is enabled
  }

  //************************************* E x a m p l e  4
  //is it time to check the switches?
  //in particular, pushing startSwitch will turn ON/OFF (toggle) an output pin 10
  //is it time to check the switches
  if (currentMillis - SwitchMillis >= debounceMillis)
  {
    //code here runs every debounceMillis ms
    //get ready for the next iteration
    SwitchMillis += debounceMillis; 
    //go and check the switches
    checkSwitches();    
  } 

  //*********************************
  //put other non-blocking stuff here
  //*********************************

} //  >>>>>>>>>>>>>> E N D  O F  l o o p ( ) <<<<<<<<<<<<<<<<<


//======================================================================
//                      F U N C T I O N S
//======================================================================


//****************** c h e c k S w i t c h e s ( ) *********************
//switches are checked every debounceValue milli seconds 
//no minimum switch press time is validated with this code (i.e. No glitch filter)
void checkSwitches()  
{
  //re-usable for all the switches  
  boolean thisState;    

  //************************************* E x a m p l e  Push ON push OFF (toggle)   
  //check if this switch has changed state
  thisState = digitalRead(startSwitch);
  if (thisState != laststartSwitchState)
  {  
    //update the switch state
    laststartSwitchState = thisState;  

    //this switch position has changed so do some stuff

    //"HIGH condition code"
    //switch went from LOW to HIGH
    if(thisState == HIGH)        
    {
      //Do some HIGH switch stuff here
    }

    //"LOW condition code"
    //switch went from HIGH to LOW
    else                          
    {
      //Do some LOW switch stuff here  
      digitalWrite(10, !digitalRead(10));
      //print number of pushes
      counter++;
      Serial.println(counter);
    }

  } //END of startSwitch code

  //*****************************************  
  //similar code for other switches goes here 
  //*****************************************  

} //END of checkSwitches()

//**********************************************************************

//======================================================================
//                      E N D  O F  C O D E
//======================================================================

.

You will not be able to read pedestrian buttons or traffic sensors while delay(…) is executing.
(Well, you can but it is too hard for newbies).

I suggest that you do as LarryD wrote.

The way that you would cook something in your kitchen is more akin to using millis(). Use millis() to get the time at which you did something. Call this didSomethingTimeMillis (which should be declared unsigned long).
Then millis()-didSomethingTimeMillis gives the amount of time since you did the something. Simple.
It will not get much simpler than this.

LarryD:
Learn it.

Four examples:

//Blink without Delay skeleton 

//4 examples demonstrated
//

//LED wiring options
//=============================================
//Depending which way your LEDs are wired, uncomment the next line.
//#define PlusEqualsON

#ifdef PlusEqualsON
//wired so +5V turns LED ON
#define ledON  HIGH
#define ledOFF LOW
//=========================
#else
//wired so +5V turns LED OFF
#define ledON  LOW
#define ledOFF HIGH
//=========================
#endif

//switch wiring options
//=============================================
//Depending which way your switches are wired, uncomment the next line.
#define PushEqualsLOW

#ifdef PushEqualsLOW
//pushing the switch makes pin LOW
#define Pushed  LOW
#define Released HIGH
//=========================
#else
//pushing the switch makes pin HIGH
#define Pushed  HIGH
#define Released LOW
//=========================
#endif

//=============================================
unsigned long currentMillis;
unsigned long pin13Millis;
unsigned long pin12Millis;
unsigned long pin11Millis;
unsigned long SwitchMillis;

//if these are not changed in the sketch, they can be const
unsigned long debounceMillis = 100UL;    //100ms
unsigned long ledOnTime      = 5*1000UL;  //5 seconds

byte laststartSwitchState    = HIGH;
byte buttonState            = HIGH;
byte counter                = 0;

//the following are enable/disable flags
//some of these might not be used in this sketch
boolean flag13 = true;
boolean flag12 = true;
boolean flag11 = true;
boolean flag10 = true;

const byte startSwitch = 2; //pushed = LOW
const byte testSwitch  = 3; //pushed = LOW

//**********************************************************************

void setup()
{
  Serial.begin(9600);
 
  digitalWrite(13,ledOFF);
  pinMode(13, OUTPUT);

digitalWrite(12,ledOFF);
  pinMode(12, OUTPUT);

digitalWrite(11,ledOFF);
  pinMode(11, OUTPUT);
 
  digitalWrite(10,ledOFF);
  pinMode(10, OUTPUT);

pinMode(startSwitch, INPUT_PULLUP); //pushed = LOW
  pinMode(testSwitch,  INPUT_PULLUP); //pushed = LOW

} //  >>>>>>>>>>>>>> E N D  O F  s e t u p ( ) <<<<<<<<<<<<<<<<<

void loop()
{
  //save the current time
  currentMillis = millis();

//************************************* E x a m p l e  1
  //toggle pin 13 every 200mS
  //has 200ms or more gone by?
  if (currentMillis - pin13Millis >= 200UL)
  {
    //code here runs every 200ms
    //get ready for next iteration
    pin13Millis = pin13Millis + 200UL;
    //toggle pin 13
    digitalWrite(13,!digitalRead(13));
  }

//************************************* E x a m p l e  2
  //at power up, pin 12 LED goes ON, after 3 seconds goes OFF and stays OFF
  //could be used as a powerup reset signal
  if (flag12 == true && currentMillis - pin12Millis <= 3000UL)
  {
    //code here runs for 3 seconds after power up, then stops
    digitalWrite(12,ledON);
  }
  else
  {
    digitalWrite(12,ledOFF);
    //disable further pin 12 control
    flag12 = false;
  }

//************************************* E x a m p l e  3
  //if testSwitch is pushed and released
  //pin 11 LED goes ON for 5 seconds, then goes OFF
  buttonState = digitalRead(testSwitch);
 
  //are we are allowed to check the switch and is it pressed?
  if(flag11 == true && buttonState == Pushed)
  {   
    //enable timing of LED on pin 11
    flag11 = false; //false → timing is enabled
    //turn LED ON
    digitalWrite(11,ledON);
    //record the time LED turned ON
    pin11Millis = currentMillis;
  }
   
  //are we allowed and is it time to control pin 11
  if (flag11 == false && currentMillis - pin11Millis >= ledOnTime)
  {
    //if enabled, code here runs after ledOnTime ms goes by
    digitalWrite(11,ledOFF);
    //allow switch press detection again
    flag11 = true; //true → switch monitoring is enabled
  }

//************************************* E x a m p l e  4
  //is it time to check the switches?
  //in particular, pushing startSwitch will turn ON/OFF (toggle) an output pin 10
  //is it time to check the switches
  if (currentMillis - SwitchMillis >= debounceMillis)
  {
    //code here runs every debounceMillis ms
    //get ready for the next iteration
    SwitchMillis += debounceMillis;
    //go and check the switches
    checkSwitches();   
  }

//*********************************
  //put other non-blocking stuff here
  //*********************************

} //  >>>>>>>>>>>>>> E N D  O F  l o o p ( ) <<<<<<<<<<<<<<<<<

//======================================================================
//                      F U N C T I O N S
//======================================================================

//****************** c h e c k S w i t c h e s ( ) *********************
//switches are checked every debounceValue milli seconds
//no minimum switch press time is validated with this code (i.e. No glitch filter)
void checkSwitches() 
{
  //re-usable for all the switches 
  boolean thisState;

//************************************* E x a m p l e  Push ON push OFF (toggle) 
  //check if this switch has changed state
  thisState = digitalRead(startSwitch);
  if (thisState != laststartSwitchState)
  { 
    //update the switch state
    laststartSwitchState = thisState;

//this switch position has changed so do some stuff

//“HIGH condition code”
    //switch went from LOW to HIGH
    if(thisState == HIGH)       
    {
      //Do some HIGH switch stuff here
    }

//“LOW condition code”
    //switch went from HIGH to LOW
    else                         
    {
      //Do some LOW switch stuff here 
      digitalWrite(10, !digitalRead(10));
      //print number of pushes
      counter++;
      Serial.println(counter);
    }

} //END of startSwitch code

//***************************************** 
  //similar code for other switches goes here
  //*****************************************

} //END of checkSwitches()

//**********************************************************************

//======================================================================
//                      E N D  O F  C O D E
//======================================================================




.

Thanks will try it

Arudion? That's a new mis-spelling.

My cousin played one of those in an orchestra. :slight_smile: